4 Inch Cal King Box Spring

This heavy-duty box spring delivers a clean, practical design to provide a reliable foundation for your mattress setup. It features a steel interior framework that helps prevent sagging and wear over time, extending the useful life of your sleep surface. The clean-lined profile is wrapped in a fabric cover, creating a neutral backdrop that coordinates easily with your choice of bedding. It easily rests inside your existing bed frame to help distribute weight evenly across the base while minimizing motion transfer. Plus, its folding design makes it easy to move through tight hallways or store away when it's not needed.

Actually really nice, it gave me more height on my bed! Seems heavy duty. Anonymous. Mon Aug 31 2026

We are a proud manufacturer of the finest quality box Springs, with the highest standards in durability, quality, comfort, & beauty. All of our products are made in the USA to ensure that you get only the best! This item is part of our Hollywood collection, it has the following features: this box spring is uniquely designed to give you the kind of undisturbed sleep nature intended. Wood foundation, Continental box meets federal standards 1632 and 1633 fire code.

I was desperate for a boxspring, Easy to put together, shipping in about a week, i was worried more so because i got an open box for a discount for a king bed but its good, i think i might buy from wayfair again in the future.. Carissa. Bethesda. Mon Aug 10 2026

This 4-inch low-profile box spring is meticulously crafted to offer exceptional support for any mattress. Comes with a high-quality cloth cover for easy washing. Constructed from durable metal with a classic steel box spring design. Warm reminder：The product only includes the base box spring and does not include the bottom of the bed frame and there are no legs.

Good morning as a woman many may think it’s not suitable or easy enough for a woman to put something like that together. The next day, after arrival I sat down, read the instructions, separated my parts, tools everything. It took me about half an hour to put it together and it works lovely. It was the perfect size height, wise that my guest room is finished finally.. Marcai. West Orange, NJ. Fri Mar 20 2026

Cherish the sweetest of your dreams and a peaceful sleep with the Wooden Box Spring. This charming deluxe product has been handcrafted by our team in such a way that it provides underlying support for the mattresses. The cheapest, long-lasting plush and the best thing you can buy. Hand-finished and traditional for a clean look, our low-profile platform twin bed frame is made of sustainably sourced and responsibly firm wood. We're an online furniture store that stocks a variety of furniture on Wayfair, like Wooden Box Springs, sets, bunkie boards, trifolds, bunk beds, toppers, metal beds, etc. We know finding furniture stores locally is hard, so we have boxed everything you need on Wayfair. Our product is manufactured to be the same size as the bed and provides extra support for your mattress. The soft cushion support, by a wooden frame filled with slats wrapped in the garment. It provides underlying support for the mattress which will result in improving air-flow between the mattresses resulting in keeping their temperature cooler. Moreover, it raises the mattress to a more comfortable height and gives a smart base increasing the durability of the mattress by absorbing the shocks impacting on it and stops from moving. The even number of spaced slats with slatted support ensures that your mattresses are covered from any damage or wear and tear. It supports the slat and innerspring mobility and the flat riser prevents from folding and will allow you to rest better like a king. It's time for the rest you deserve! Gift yourself or a loved one a treasured beauty rest experience!!

Good quality, would purchasew again. Mw. Voorhees, NJ. Sat Aug 29 2026

This spring mattress has both supporting force and softness, and has good resilience. You can use it yourself or commercially. The bottom is non-slip and has four-corner elastic bands, which can be well fixed. The cover can be detached and washed, which is convenient for cleaning.

Great for extra height and comfort, however it didnt fill the hole on our memory foam mattress like we had hoped. Still a great investment and a great price less than 200 on the Memorial Day Sale . on sale.. Anonymous. Sun Jun 07 2026

This box spring offers a reliable foundation for your mattress. It's crafted with a metal frame that provides a supportive base for a variety of mattress types. Beneath its fabric cover lies a reinforced steel framework that resists sagging and wear, helping to extend the life of your mattress over the long haul. The neutral, minimalist silhouette blends effortlessly with any bedding style, while the low-profile build fits neatly inside most standard bed frames—evenly distributing weight across the base and reducing motion transfer for more undisturbed rest. Designed to fit within most standard bed frames, it helps elevate your sleep surface while maintaining a low profile. The interior construction is built to support weight evenly.

I wanted just to raise the mattress hight. These were perfect. The included cover was perfect. Very sturdy metal. Takes a little time to put together, but all in all, was great.. Linda. Modesto, CA. Sun Jun 28 2026

We are here to help you select what’s best for your sleep. Our easy wood box spring/foundation with simple assembly is just what supports your favorite mattress. Don’t have a mattress? Do not worry. Our box spring bed frame is specifically designed to handle all kinds of mattresses even heavier ones like memory foam and latex. The sturdy design is crafted using lightweight but dense lumber so that any kind of stress on the mattress does not create squeaks. The traditional box spring design has equally distant wooden slats so the product supports imbalance easily. Get this beautiful piece to adorn your home and give your mattress the love it deserves. Our manufacturing abides the strict quality standards so you get to stop worrying over durability. The product is shipped to you in an easily assembled structure so setting it up is fun. Moreover, our configuration allows you to create your heaven for your beauty sleep.

Definitely good quality, everything is perfect, definitely would recommend for a home buyer or tenant! Thanks wayfair!. Samuel Biru. San Diego Ca. Tue Aug 11 2026

Welcome to the Alwyn Home! Here we offer you the best prices for the best quality. Come have a look at our latest Split Fully Assembled Box Spring for Mattress from our Alwyn Home collection. This design is handcrafted so that you forget back pains and discomfort forever. Lay down your favorite mattress on our box spring to enjoy the beautiful sleep you always wanted. The equally distant slats and wood frame do not let the frame loosen up and are strong enough to handle various kinds of duress. You don’t need to worry about a squeaky bed frame ever again. The excellent packaging and design of the box spring are pre-assembled, just the perfect fit for your bedroom. The product is lightweight even as a traditional box spring and lets you have these benefits in assorted sizes namely: Twin, Twin-XL, Full, Full XL, Queen, King, and California King. We have twin profiles of the product in 4” and 8” thicknesses crafted just for your needs.

Heavy duty! The four box springs were much more convenient to place and seems to give be a sturdier base and center to our Cal king mattress!! Highly recommend. Anonymous. Sat Sep 05 2026

The Serta Low Profile Box spring offers support, durability, and reduced motion. When used with a proper supportive bed frame, it helps prevent sagging and blowing for the life of the mattress

Great I loved clean nice perfect. Kayra Bencosme. Wyoming, MI. Mon Jul 15 2024

The Serta Flat Mattress Foundation is a box spring alternative and provides the perfect support for your Serta mattress, adds 9” in height to your bed, and is designed to provide durability and long-lasting comfort. Pairing this bed base with your mattress will support it and extend its life while helping isolate the effect of your partner’s movements in bed.

Great quality and meeting all needs. Ra. Monterey, TN. Sun Aug 23 2026

This bamboo box spring offers a streamlined, budget-friendly foundation for your mattress. Available in multiple heights—5'', 7.5'', or 9''—it lets you choose the right profile for your setup. The steel frame is designed to reduce squeaking and sagging, while the removable cover with elastic edges makes it easy to keep clean. Ideal for bedrooms or guest rooms, it supports your mattress without the need for a box spring. Plus, the slatted design promotes airflow to help keep your mattress fresh.

Very easy to put together and sturdy! Definitely recommend.. Jennifer. South Burlington, VT. Wed Sep 02 2026

The right kind of smart box spring bed base can change everything & provide mattress comfort and stability. It’s the difference between deep sleep and restless nights. Between a mattress setup that fits easily through stairwells, and one that gets jammed halfway up the landing. Between moving in stress-free… and not at all.That’s why this fully assembled wood box spring was built for real life. Solid wood pieces, durable joints, and Amish craftsmanship come together to give your mattress the support it needs – without the headaches you don’t.Instead of stiff metal or squeaky materials, you get natural wood with just the right amount of give. It stays quiet through the night and comfortable under pressure, helping your mattress feel more supported. Colours: White or GrayMaterial: Solid WoodAssembly: Fully AssembledIncludes: Box Spring OnlySPLIT DESIGN FOR EASY TRANSPORTForget the frustration of cramming bulky box springs through doorframes. This comes in split pieces – able to fit through tight stairwells and be easily set up once in the room. Great for any setup, especially if space is limited.SOLID SILENT SUPPORTThe wood frame flexes just enough to be comfortable without creaking or shifting over time. It works with all mattress types like memory foam, latex, spring and hybrid—and gives you a stable, quiet base that stays supportive through the night. Strong support for your mattressMADE IN AMERICA BY THE AMISHThis box spring foundation is made in the USA by experienced Amish craftsmen who take pride in doing things right. From the quality of the wood to the precision of the joints – it’s built with care and built to last.One of the key benefits of this box spring is its ability to absorb pressure, which helps distribute weight evenly across the bed, reducing the amount of pressure on your back, neck, and other joints. Additionally, this box spring is available in a range of sizes and thickness options, so you can choose the level of support that best suits your needs and also available in low profile bed base and high profile bed base.Plus, with its sleek and simple design, this box spring will complement any bedroom decor. It is available in two stylish colours, white and Gray, so you can choose the one that best fits your style. Durable frame with horizontal slats for strong mattress supportIn summary, our natural wood box spring is the perfect accessory for anyone who wants a durable, supportive, and fully assembled box spring for their mattress. With its ability to distribute weight evenly, it reduces pressure on your body and ensures a comfortable sleep. Choose from a range of sizes and thickness options and upgrade your bedroom with this must-have accessory today!

The box spring base is great and does not slide around like the metal one I had. This one is both sturdy and supports my mattress.. Annette. Mesa, AZ. Fri Mar 13 2026

Enjoy the strong support and convenience of the new Low Profile Metal Smart Box Spring by Zinus, offering the look and functionality of a traditional box spring, but made from steel for longer-lasting durability. Wood slats provide strong, comfortable support. Compact packaging allows for tight interior spaces such as stairs and hallways. Easy assembly with all the needed tools included.

Super easy smart box spring and its seen very durable, I like it, no more squeekee wood box spring. Enid. Killeen, TX. Wed Jun 10 2026

We are a proud manufacturer of the finest quality mattresses and box springs, with the highest standards in durability, quality, comfort, and beauty. All of our products are to ensure that you get only the best.

I loved this spring box; I'm very satisfied.. Silvia. Sat Sep 05 2026

We are here to help you select what’s best for your sleep. Our easy wood box spring/foundation with simple assembly is just what supports your favorite mattress. Don’t have a mattress? Do not worry. Our box spring bed frames are specifically designed to handle all kinds of mattresses even heavier ones like memory foam and latex. The sturdy design is crafted using lightweight but dense lumber so that any kind of stress on the mattress does not create squeaks. The traditional box spring design has equally distant wooden slats so the product supports imbalance easily. Get this beautiful piece to adorn your home and give your mattress the love it deserves. Our manufacturing abides the strict quality standards so you get to stop worrying over durability. The product is shipped to you in an easily assembled structure so setting it up is fun. The product has an assortment of sizes to cater to your needs namely: twin, twin XL, full, full XL, queen, king, and California king. Moreover, our configuration allows you to create your heaven at the height of 5” and 8” for your beauty sleep.

This was easy to assemble. It is a firm king box spring. I like that it is one box spring for a king vs. typically two twins to make a king. We ordered the low profile and it works well with our mattress.. Kathryn. Sturgeon Bay, WI. Fri Jul 10 2026

Are you troubled by mattress sagging affecting your sleep? Are you bothered by a bed frame that's too low? You need a metal mattress base. This heavy-duty mattress base features spacing between slats to effectively prevent mattress sagging. Standing tall, it's constructed from sturdy steel for enhanced stability and durability, ensuring long-lasting performance. All models come with a neutral-toned cover and feature non-slip elastic straps for easy assembly and disassembly.

Nice, made my bed taller. Very sturdy and easy to put together.. Shameece. Tavares, FL. Mon Jun 22 2026

This bed frame comes in four sizes: Twin Size (38"x75"), Full Size (54"x75"), Queen Size (60"x80"), and King Size (76"x80"), fitting various metal bed frames. Made from sturdy and durable materials, it provides excellent load-bearing capacity and effectively prevents mattress sagging, extending the mattress's lifespan. The non-slip fabric on the bed frame not only prevents mattress movement but also better controls noise. It provides superior support for the mattress and brings a more comfortable sleep experience.

Works great! Sturdy and lightweight. Love that it’s two pieces so it’s adjustable, one can be overlayed over the other in case you need a little more room on the sides (like with our our bed frame that has drawers). Folds up really well if need to store.. Lidiya. Charlotte, NC. Sat Jul 25 2026

Focused on creating a simple, stylish, safe, and comfortable box spring, delivering a non-slip and noise-free sleep environment so your family can enjoy better sleep—backed by 20+ years of innovation.

Simple and easy to put together, love it.. Darnel. Pikesville, MD. Fri Aug 28 2026

Ideal for master bedrooms, guest rooms, and rental properties - elevates your mattress to knee height for easy getting in/out. Perfect for families with kids and pets, the stain-resistant cover and sturdy frame withstand daily use. Compatible with all mattress types, it revitalizes old sagging mattresses without replacing the entire bed.

Easy to assemble. Works fine. Mine came with a queen size slip cover when it was a king size I ordered so I took one star off.. Yve. Philadelphia, PA. Sun Aug 30 2026

Looking for a reliable foundation that offers firm, even support for your mattress? The Slumber Solutions 5.5-inch Wood Box Spring is a low-profile solution built for strength and stability. Crafted with a solid wood frame and supportive wood slats, this foundation is designed to extend the life of your mattress and provide consistent comfort night after night. Its compact 5.5-inch height makes it perfect for those who prefer a lower bed profile while still enjoying superior mattress support.

Worked well, holes not completely lined up.. Laurie. ID. Mon Aug 10 2026

Bunkie boards split bunkie board provides a surface foundation for all types of platform beds, bunk beds, and sofa beds. We offer four sizes of bed bases: the King size (76'‘ x 80’'), Queen size (60'‘ x 80’'), and Full size (54'‘ x 75’') consist of two sections placed side by side, while the Twin size (38'‘ x 75’') is a single piece.They under mattress support for any type of mattress and help keep it in good condition, thereby extending its lifespan. The Oxford fabric on the underside provides effective slip resistance, and each corner of the bed base is equipped with straps to prevent shifting during use. It can be placed directly on the bed frame without the need for a spring mattress. This bed base offers long-lasting comfort and durability, ensuring you enjoy a restful night’s sleep. The split-piece design offers exceptional convenience, and the foldable design makes it lightweight and portable, allowing for easy transport even in tight apartment spaces.

This was very easy to put together and on the bed. There is Velcro in each corner and the middle to secure it to the frame. I am hoping this will greatly help the bed be more stable and firm giving her more support.. Jennifer. Gainesville, VA. Wed Aug 05 2026

Our 4 Inch heavy-duty box spring is designed to provide comfortable support under any mattress. It takes lots of time for us to pick out the right mattress. But they're not the only important part of your bed - you also need the right mattress foundations! Crafted from durable metal with a heavy-duty box spring design, its sleek, clean lines blend seamlessly with classic decor styles. (The product only includes a box spring, the mattress and bottom frame are not included.).

Our 2 Inch Metal Box Spring is the ideal low-profile mattress foundation, designed for quick setup, quiet nights, and easy care. With an integrated folding frame and clear instructions, it assembles in minutes without extra tools. Precision-welded steel construction eliminates squeaks and rattles, ensuring a silent, stable base no matter how you move. Available in twin, twin xl, king, and cal king size box spring options, it can perfectly serve as your ideal twin bed frame, king size bed frame and California king size bed frame foundation to match various mattress sizes.

The right kind of smart box spring bed base can change everything & provide mattress comfort and stability. It’s the difference between deep sleep and restless nights. Between a mattress setup that fits easily through stairwells, and one that gets jammed halfway up the landing. Between moving in stress-free… and not at all.That’s why this fully assembled wood box spring was built for real life. Solid wood pieces, durable joints, and Amish craftsmanship come together to give your mattress the support it needs – without the headaches you don’t.Instead of stiff metal or squeaky materials, you get natural wood with just the right amount of give. It stays quiet through the night and comfortable under pressure, helping your mattress feel more supported.PRODUCT SPECIFICATIONS:Sizes: Twin, Twin XL, Full, Full XL, Queen, King, Queen(Fold), King(Fold), California King(Fold)Heights: 4" or 8"Colours: or Material: Solid WoodAssembly: Fully AssembledOrigin: AmishIncludes: Box Spring OnlySPLIT DESIGN FOR EASY TRANSPORTForget the frustration of cramming bulky box springs through doorframes. This comes in split pieces – able to fit through tight stairwells and be easily set up once in the room. Great for any setup, especially if space is limited.SOLID SILENT SUPPORTThe wood frame flexes just enough to be comfortable without creaking or shifting over time. It works with all mattress types like memory foam, latex, spring and hybrid—and gives you a stable, quiet base that stays supportive through the night. Strong support for your mattressBY THE AMISHThis box spring foundation is by experienced Amish craftsmen who take pride in doing things right. From the quality of the wood to the precision of the joints – it’s built with care and built to last.One of the key benefits of this box spring is its ability to absorb pressure, which helps distribute weight evenly across the bed, reducing the amount of pressure on your back, neck, and other joints. Additionally, this box spring is available in a range of sizes and thickness options, including twin, twin XL, full, full XL, queen, king, queen(Fold), King(Fold)and California king(Fold), so you can choose the level of support that best suits your needs and also available in low profile bed base and high profile bed base.Plus, with its sleek and simple design, this box spring will complement any bedroom decor. It is available in two stylish colours, and , so you can choose the one that best fits your style. Durable frame with horizontal slats for strong mattress supportIn summary, our natural wood box spring is the perfect accessory for anyone who wants a durable, supportive, and fully assembled box spring for their mattress. With its ability to distribute weight evenly, it reduces pressure on your body and ensures a comfortable sleep. Choose from a range of sizes and thickness options and upgrade your bedroom with this must-have accessory today!

Arrived as stated. I have not taken it out and set it up yet my house isn’t finished yet.. Rosanne H. Sat Jun 06 2026

Premium 5 Inch Box Spring features durable heavy-duty metal construction with strong load-bearing capacity, delivering long-lasting stability and reliable support for a restful night’s sleep. Boasting a sleek low-profile design, it fits seamlessly with any bedroom decor while saving space beautifully. This noise-free mattress foundation eliminates squeaks and rattles for an ultra-quiet sleeping experience. Designed for effortless quick assembly and fitted with a premium fabric cover, it not only adds elegant style but also shields the base from dust and daily wear. Available in twin, twin xl, queen, and king size box spring options, it can perfectly serve as your ideal twin bed frame, queen bed frame and king size bed frame foundation to match various mattress sizes.

Sturdy and quiet. Easy assembly. Pamela. Pomona, CA. Tue Jul 07 2026

The bunkie board split bunkie board provides a surface foundation for any platform beds, bunks, and daybeds. It adds support to the mattress and will keep the mattress stay in good shape thus extending the life of your mattress. It will give firm bottom support for the mattress and raise the mattress by about. When a mattress is placed directly on slats or metal springs, the mattress will tend to rip or sink. These can be avoided with the use of a bunkie board. Using a bunkie board doubles the mattress' life expectancy. This bunkie board is a good alternative instead of a box spring that may be too high for day beds. It will give the bed a lift without adding much height. This bunkie board is strong enough to be used directly on the bed frame instead of a box spring. It will give the mattress a lift which is quite low but will hold up the mattress. It is wrapped in a stitch-bonded nonwoven fabric. It meets federal standards 1632 and 1633 fire codes. This bunkie board will give you enduring comfort and durability for excellent sleep. The split design will give you convenience and easy mobility since the 2 piece varieties are very lightweight utilizing 2 smaller pieces making them easier to carry and maneuver through the cramped quarters of an apartment house. Continuously aims to be the most reliable direct mattress manufacturer in the industry. With our prominent name and superior service, we satisfy customers all over. All of our products are made in the country to ensure that you get only the best. We take great pride in the quality of our products and the quick service we provide. Our customers are our best advertisement. Customers and business partners alike have experienced the company's commitment to the unbeatable service we provide for their high-quality products.

Great quality slat board(box sprig). Very happy with this product. Miriam. US. Mon Jul 27 2026

Upgrade your sleep setup with the Bunkie Board, designed to deliver strong, reliable support without the need for a bulky box spring. Whether you're dealing with a sagging mattress or simply want a more stable foundation, this heavy-duty bunkie board provides the perfect solution. Crafted to offer firm and even mattress support, this bunkie board helps prevent sagging, improves overall comfort, and extends the life of your mattress. It works seamlessly with memory foam, hybrid, and traditional spring mattresses, giving you a better night’s sleep every time. The low-profile design allows you to maintain a modern, streamlined bed setup while eliminating the need for a box spring. Ideal for platform beds, bunk beds, and other bed frames, it keeps your mattress supported without adding unnecessary height. Built from durable Fiber Board, this heavy-duty support system distributes weight evenly across your bed frame, ensuring long-lasting strength and stability. Unlike weaker alternatives, it is designed to hold up over time without bending or shifting. Enjoy a peaceful night with a noise-free and non-slip design that keeps your mattress securely in place. No more creaking, sliding, or constant adjustments—just consistent support and quiet comfort. Installation is quick and effortless—no tools required. Simply unfold and place the bunkie board on your bed frame, and it's ready to use in under a minute. For larger sizes like King, Queen, Full, and Cal King, the board comes in two sections for easy handling and setup, while Twin and Twin XL sizes come as a single piece. For best results, we recommend measuring the inside width of your bed frame before ordering to ensure a proper fit, as bed frame dimensions may vary.

Great product just whst was needed. Charles. FL. Sun Aug 16 2026

Sturdy Construction: This size box spring features a heavy duty metal frame and reinforced steel construction. Whether you're using it on your own or sharing it with a partner, it can support up to 3000 lbs, ensuring that your mattress stays in great condition.

This heavy-duty metal bed frame exceeded my expectations! It was surprisingly easy to assemble with clear instructions, and all of the pieces fit together perfectly. Once put together, it feels extremely sturdy and provides excellent support for my mattress with no squeaking or wobbling. I also love the fabric cover—it gives the frame a cleaner, more finished look while helping keep dust from collecting underneath. The height provides plenty of storage space, which is a huge bonus for keeping my room organized. Overall, this is a well-made, durable bed frame that offers great value for the price. If you’re looking for a strong, noise-free foundation that’s easy to put together, I would definitely recommend this one.. Shanoya Palmer. New Rochelle, NY. Mon Jul 13 2026

Foldable Bunkie Board：This foldable bunkie board creates a stable base for your mattress. High-strength PP panels help reduce sagging, while the Oxford fabric bottom with textured grip and hook-and-loop straps keeps it in place. The 0.4 in thin design fits various mattresses and frames, and folds easily for storage.

It fits my king-size bed perfectly. The frame is sturdy and easily supports a 12-inch mattress.. Jasmina. Oakton, VA. Fri Jun 26 2026

Foldable Bunkie Board：This foldable bunkie board creates a stable base for your mattress. High-strength PP panels help reduce sagging, while the Oxford fabric bottom with textured grip and hook-and-loop straps keeps it in place. The 0.4 in thin design fits various mattresses and frames, and folds easily for storage.

Box spring with it’s strong metal frame of this mattress foundation guarantees robust support for your mattress. Experience a stable and secure sleeping surface that stands up to regular use, providing lasting comfort. Engineered for a quiet and noise-free experience, creating a serene environment for a restful night's sleep. Designed with user convenience in mind, assembly is a breeze. Follow simple instructions for easy setup, allowing you to enjoy the benefits of your new box spring without the hassle of complex installations

I was expecting the cover all around but slip on fine this fit perfectly on my bed and has helped me sleep and straighten up my back I just need to find a couple firm pillows and I’m good. Briana. Sacramento, CA. Thu Jun 25 2026

This 5 inch Low Profile box spring is meticulously crafted to offer exceptional support for any mattress. While selecting the perfect mattress is a crucial aspect of creating an ideal sleeping environment, it's equally important to consider the mattress foundations. Constructed from durable metal with a classic steel box spring design. Elevate your sleep experience with this thoughtfully designed bed foundation, ensuring you receive the utmost comfort and support for a restful night's sleep. The product only includes the base box spring and does not include the bottom of the bed frame.

I must say I was a little skeptical buying a box spring that had to be put together as I had never heard of this before. In all honesty it’s a very smart idea! It went together very quickly and you would never know it came in a box and had to be built!. Anonymous. US. Sun Jul 12 2026

We like to think of the quick lock metal box spring as the 2.0 version of your traditional mattress foundation. Made sturdier than ever by its substantial steel frame and with its game-changing assembly method, we’ve developed a better way to deliver great sleep to your door. Created with closely spaced slats to accompany your latex, memory foam, or spring mattress, this durable box spring comes in three different thicknesses so your bed can be as short or as tall as you like it. The box spring features our fool-proof quick-lock assembly system, meaning you spend less time screwing in bolts, and you get to be pleasantly surprised by how simply and quickly it comes together. You may even pat yourself on the back once you’re done we encourage that. We’re so sure of this foundation (along with hundreds of happy customers) that it’s backed by a 5-year worry-free warranty, so you can sleep confidently for years to come.

Not a lot to say, it's pretty standard. Be careful with the long center support rail. Make sure if picturing it top to bottom, you have to make sure that center rail is in place the correct way, or, you end up tearing it apart and re-doing it. I'm just saying.. Mike. Bend, OR. Mon Mar 30 2026

Get the best foundation for your Kingsdown mattress with the Kingsdown Low Profile 5 inch Wood Foundation. The Kingsdown Low Profile 5 Inch Wood Foundation provides a uniquely designed, dynamic support system for Kingsdown mattresses that optimizes mattress performance and supports the body for optimal restorative sleep. Handcrafted in the USA with premium quality materials, this highly effectual foundation is built to last for years to come.

Perfect size for a box spring. I like that it did not have to be assembled. The delivery guys did a great job of communicating when they would deliver to the house.. Gretabee. Kerrville, TX. Mon Oct 13 2025

Upgrade your mattress support with this 0.3" Split Folding Bunkie Board, designed to create a stable foundation for platform beds, slatted bed frames, box springs, and upholstered beds with spaced slats. (Not recommended for open metal frames without slats.) Made with durable polypropylene (PP) panels wrapped in stitch-bonded gray nonwoven fabric, it delivers firm support to help reduce mattress sagging and maintain a more even sleeping surface. The slim 0.3" profile adds support without increasing bed height, offering a convenient alternative to traditional box springs. The foldable two-piece design with hook-and-loop fasteners allows for quick setup, easy storage, and effortless portability, making it a practical solution for everyday mattress support needs.

I am very happy with this Bunkie board. It was easy to set up, feels sturdy, and provided excellent support for my mattress right away. My bed feels much more stable, and I no longer notice any sagging or movement. It has made sleeping more comfortable, and I appreciate that it has a low-profile design without adding unnecessary height. The quality is better than I expected, especially for the price. I would definitely recommend this Bunkie board to anyone looking for extra mattress support.. Kelly Watt. Tue Jul 21 2026

A STURDY FOUNDATION FOR BETTER SLEEPA mattress is only as good as the support beneath it. Without a solid base, it can sag, wear out faster, and leave you waking up sore. This fabric-covered bunkie board creates an evenly firm foundation that extends mattress life, prevents sinking, and makes it feel more comfortable.Designed for both strength and breathability, it features a 1.5-inch thick wood slat frame wrapped in durable stitch-bond fabric for airflow and stability. Unlike bulky box springs or flimsy slats that shift around making noise – this no-sag, split-design bunkie board keeps your mattress supported day and night.Arriving fully assembled for easy transport, it makes setup easy and fits perfectly into your existing bed frame. Whether you need low-profile support or a replacement for loud wooden slats, this bunkie board delivers comfortable stability without the extra weight.PRODUCT SPECIFICATIONS:Usage: Under Mattress SupportThickness: 1.5 inchesMaterial: Solid Wood (Slatted Frame)Covering: Breathable Stitch-Bond FabricTwin: 2-Piece Split DesignFull/Queen/King/Cal King: 4-Piece Split DesignFOR TWIN SIZE BEDS2-piece split design for Twin and Full sizes. Lightweight and easy to maneuver in tight spaces. Perfect for children’s bunk beds, loft beds, and daybeds where a box spring would add too much height.FOR FULL,QUEEN, KING AND CALIFORNIA KING BEDS4-piece split design for Queen, King, and Cal King sizes. Provides sturdy support for bigger mattresses. It works great for standard bed frames that need extra strength, helping to stop sagging early and keeping your mattress firm and comfortable longer

I have a full size mattress on a split box spring because a full size didn’t fit up the stairs. My issue was not with my mattress but the box spring which seemed to be useless. This board gives my mattress the support it should have had.. Kelley. Massillon, OH. Fri Sep 04 2026

Experience the epitome of luxury and restful slumber with our 5-inch reinforced metal box spring. Designed to provide robust support for various mattress types, this box spring promises a tranquil night's sleep. Crafted with a focus on durability, it features heavy-duty slats that extend your mattress's lifespan while preventing sagging. The added vertical reinforcement ensures stability and minimizes disturbances. But our box spring is more than just functional; it's a stylish addition to your bedroom decor and brings sophistication to your space. Bid farewell to creaks and wobbles with our noise-free, non-slip design. Assembling this box spring is a breeze, thanks to the included hardware and instructions. Versatile and functional, it's the ideal centerpiece for any bedroom. Elevate your sleep with our high-quality box spring, delivering unmatched support and comfort for rejuvenating nightly rest.

Easy to assembly not too high I’m in love with it. Kashia. Mon Aug 17 2026

Experience Unmatched Comfort with our Bunkie Board! Tired of feeling those uncomfortable steel and hard support frames while sleeping on your pullout sofa bed? Our innovative support board is here to transform your sleep experience by providing a plush and supportive surface.

This is such a better option than using a boxspring. It keeps the bed lower for kids that are younger.. Anonymous. Thu Sep 03 2026

Upgrade your sleep setup with this heavy-duty metal box spring designed for strong, stable mattress support. Featuring reinforced steel slats, noise-free construction, and a clean fabric cover, this 9-inch foundation offers lasting durability with easy assembly and reliable everyday comfort.

Very easy to assemble and delivery was fast. Jasmine. Orlando. Fri Sep 04 2026

Foldable Bunkie Board:This foldable bunkie board creates a stable, quiet base for your mattress. The Plywood board provides stronger support than particle board to help reduce sagging. The slim design fits various frames, while nylon straps allow quick setup and easy folding for moving, rentals, and small spaces.

The Serta foundation provides extra support for your mattress.

Excellent quality and great price!. Jennifer. Scarborough, ON. Sat Mar 14 2026

A sturdy RTA mattress foundation for a restful night's sleep at a value-added price! This box spring foundation technology is designed to extend the life of your mattress while evenly distributing weight, and providing support and stability that reduces mattress movement. The complete frame is wrapped in a woven polyester fabric cover. While easy to transport, this frame fits and stores in tight spaces and is ready to assemble in any bedroom space to suit your needs.

Delivery was overnight-so quick! Exactly as described and easy to put together alone using power tools instead of the provided allen wrench. It took me approximately one hour. I assembled it in the room where I was going to use it because it's very heavy once it's built. It fit perfectly in my bed frame because the dimensions were spot on. The new mattress fit great on top and there are no squeaks or rattles.. Sue. Howell, MI. Tue Aug 11 2026

This box spring offers support, durability, and reduced motion. When used with a proper supportive bed frame, it helps prevent sagging and bowing for the life of the mattress.

Great quality! Sleek design. Dironda. Mckinney, TX. Mon Apr 13 2026

Upgrade your sleep foundation with this modern low-profile box spring, designed to provide reliable mattress support with an upholstered appearance. Constructed with a strong metal frame and wrapped in durable fabric, it offers long-lasting stability while enhancing the overall look of your bed setup. Its low-profile design delivers solid support without the extra height of a traditional box spring, making it ideal for contemporary bedrooms. Available in Twin, Full, Queen, and King sizes, it easily accommodates different mattress types, bed frames, and room layouts.

So far so good very low but I like it. Ahhmora. Conyers, GA. Wed May 27 2026

Transform your sleep experience with our 5-inch wooden box spring. This box spring is the foundation of sturdy and dependable mattress support, compatible with a wide range of mattress types, including memory foam and latex, ensuring a firm and restful night's sleep. Constructed with durable wooden slats and a linen fabric cover, it's built to last and designed to preserve your mattress in perfect condition for years to come. Crafted for unbeatable durability, this box spring provides a robust and noise-free foundation for all mattress types. Its innovative design, featuring slats or a grid, enhances air circulation, reducing moisture buildup and allergens in your mattress, and creating a healthier sleep environment. The linen fabric cover adds an elegant touch to your bedroom decor, seamlessly complementing your mattress and bed frame. Available in twin, full, queen, and king sizes, this box spring is a versatile choice for any bedroom. With all the necessary hardware included for easy assembly and the convenience of shipping in a single box, upgrading your sleep setup has never been simpler.

Just what I needed for my bed, after I had already bought the Morganville Mattress. Both together looks great.. Edward. Suitland-silver Hill, MD. Fri May 15 2026

The foundation of your bed is important, and this easy-to-assemble metal box spring provides the ideal environment for peaceful sleep and beautiful dreams on your mattress. Made of metal for sturdiness, it comes with a standard steel box spring design and a gray and white cover palette, with clean lines that work well with modern and classic décor for a sleek and stylish look. No hassle is required, just take this box spring out of the shipping box and simply assemble it, top it with your mattress of choice and you're ready for a good night's sleep.

It’s a nice bed I will say it is more firm than I was expecting it’s advertised as a hybrid. I’ve only had memory foam in the past so maybe I’m soft biased. Anonymous. Fri Jun 12 2026

This product is designed to provide excellent support under any mattress. It ships in a compact box and can be easily assembled in minutes — without any tools! Unlike traditional box springs, our foundation can be broken down quickly if you’re moving or need to maneuver around tight corners. A Casper Foundation ensures that mattresses, sleep as they should. Some older box springs or foundations don’t provide a solid surface, causing mattresses to sag from the support breaks. Our Casper Foundations slats are positioned a perfect four inches apart for optimal support. A strong and level foundation helps mattresses perform at their peak for a decade or more, no matter what kind of bed frame they sit on. Casper Foundations and mattresses are the perfect pair. We spent over a year developing the Casper Foundations, so its design has the same considerations as our mattresses.

Easy to put together. Very sturdy. There are screws heads in the bed frame in 3 places down the middle of the frame and the center piece of the foundation sits on the screw heads. So it doesn’t fit flat on the frame. Either the makers of the bed or the foundation need to accommodate this space for the screw heads. I coved the foundation with a fitted sheet since it only comes in one dark color.. Doug. Erie, MI. Wed Jun 24 2026

Solid construction bed frame provides excellent support for your box spring and various mattresses. Enhances overall strength; non-slip, non-abrasive spacers on the bottom of the bed legs allow for silent use and protect your floors. Compact design can be assembled in less than 10 minutes. Small, compact package packs easily through doors and stairs.

This is a really nice bed frame. It was carefully packed, shipped so quickly and easy to assemble. All the pieces. Parts inside were wrapped in plastic. The other pieces were strapped in the box. The directions were in pictures and so easy to follow. Everything was in the box including the little tools. What a deal! Thank you for a great shopping experience. I'll be back soon for something else.. Ellen Mccaffrey . Cleveland, Ohio. Mon May 25 2026