Split Box Springs & Foundations

By Casper Sleep

King

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

By Alwyn Home

Queen, Low Profile (4")

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 a little worried that these were the wrong size for the queen bed, but it’s just the frame opening that’s a bit large - our new queen mattress fit perfectly on top of this base. So pleased with the new accessible height for our bed - our in-laws are coming and I wasn’t sure they could get in the bed before! The split design made getting it into our over-garage guest room up narrow stairs super simple. Quick delivery. Couldn’t be happier.. Susanne. Wilton, CT. Wed Jun 24 2026

By Serta

King

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.

Perfect for what I needed. Heather. Mooresville, NC. Sat Jun 27 2026

By White Noise

Queen

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.

This was perfect to add a little height and support for my new mattress.. Susan. Deerfield Beach, FL. Mon Jun 29 2026

By White Noise

Queen, Standard Profile (8")

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!!

My partner and I have been using this split frame for a few months now and we love it. This is our first hollow box spring after living with an old coil box spring for so long. Though there are definitely differences, we sleep just as well on it. For reference, the two of us on our queen double pillow top mattress with four additional mattress tops are roughly 650lbs all together. This split frame easily holds all of the combined weight. We live in a second floor condo with a winding staircase and this split frame was easy to maneuver up both sets of stairs.. Remi. Ohio. Tue Jan 20 2026

By Alwyn Home

King

This split folding bunkie board provides a stable surface foundation for platform beds, slatted bed frames, box springs, and upholstered beds with gaps between slats. (Note: Not recommended for open metal frames without slats). Made with durable plastic panels and wrapped in stitch-bonded gray nonwoven fabric, it offers firm bottom support for your mattress—maintaining its shape, reducing sagging, and extending its lifespan. With a thickness of 0.4 inches, it adds support without increasing height, making it an ideal alternative to traditional box springs that may be too tall for everyday use. Designed for convenience, this foldable bed panel features hook-and-loop fasteners (Velcro) that securely connect the two pieces. Each bed panel folds individually for easy storage and portability, while ensuring lasting comfort and durability.

I’ve bought a low profile bed before and I definitely needed a bunkie board. Definitely recommend this if you’re planning on getting a low profile bed with slats this definitely adds extra support extra support and your mattress doesn’t end to sink through those slab so really nice price for a king funky board. I highly recommend.. Latisha. Memphis, TN. Sun May 24 2026

By Alwyn Home

Full / Double

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.

Best box spring I've ever had. Easy setup!. Stacey King. Bronx, NY. Tue Jun 23 2026

By Alwyn Home

Queen, Low Profile (4")

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.

Easy to transport with it folded!. Andrea. Peachtree City, GA. Sat Jun 20 2026

By Alwyn Home

Twin

Your search for sturdy bed support ends here! We have just what you need - a 1.5-inch Split Fully Assembled Bunkie Board for Mattress/Bed Support for your lovely bed frame. We aim to provide the best quality products at economical prices designed especially for your needs. The product here is fully equipped to support your mattress and is highly recommended if you don’t prefer high-box springs. Avoid the feeling of your mattress sinking or ripping when directly placed on the bedframe. The stitch-bonded non-woven fabric of the product gives it a tough edge and durability to endure the stress of the mattress. This will allow you to get your beauty sleep peacefully, reduce fatigue, give sturdy back support, and also ensure good blood circulation. The packaging is conveniently created to allow easy transportation and setup. Compact homes are not a problem anymore. The fully assembled Bunkie board is ready to use and available in assorted sizes namely - twin, twin XL, full, queen & king with a height of 1.5”. The product is to be used on a bed frame for optimal support to your mattress.

Replaced older ones that made noises getting into bed and moving around. These very good. William. Sunbury, OH. Wed Sep 03 2025

By Alwyn Home

Standard Profile (8”)

This premium box spring is crafted from strong and heavy-duty Canadian Rubber Wood, known for its light yet dense structure, which ensures long-lasting durability and keeps your mattress in pristine condition. The innovative design allows for easy transport by splitting the box spring into four manageable sections, making it effortless to move. Designed for convenience, this box spring arrives fully assembled simply open the box, attach the legs, and it's ready for immediate use. Its optimal height enhances your mattress, providing the perfect balance of comfort and support. This box spring with legs is specifically engineered to support memory foam and hybrid mattresses, offering a sophisticated and elegant look. Built to last, this box spring guarantees durability and longevity. Ideal for all mattress types, particularly those with 8" and 4" heights, it is perfect for individuals who prefer a low-profile bed. Crafted in the USA from high-quality, responsibly sourced wood, this box spring features a non-slip surface to keep your mattress securely in place, ensuring a stable and restful sleep experience.

I was skeptical to get a bed frame after so many reviews and so many products… it was overwhelming. But I am pleased with this product. Comfortable and average on price.. Kenneth. Thu Sep 18 2025

By Corsicana Mattress Hospitality

California King Split

9inch All wood foundation

Ordered a King Boxspring and received half of the mattress only. Called Wayfair and their only solution after I have waited weeks for this is that I would need to return it and shop for another bed! The representative acknowledged that the listing was wrong and lead buyers to think they were getting the entire King Boxspring but said there was nothing she could do to help me based on their error. She said she could refund me and I can shop for another bed. Now I still have no Boxspring for my bed and have to sit with this in my living room until a delivery company can come pick it up if at all. Wayfair needs to fix their customer service because they messed up and have found a way to make their error my problem. If you have a King bed you better order 2 of these.. Patria. Elizabeth City, NC. Thu Nov 30 2023

By Alwyn Home

Queen, Standard Profile (5")

Discover the foundational piece your bedroom with our mattress foundation, a testament to understated elegance and robust support. Handcrafted with precision, the slats are arranged to cradle your mattress, ensuring stability that lasts through years of restful slumbers. The unique combination of Kara-Guard padding, in place of ordinary cardboard, offers a silent guardian against noise, so your peace is never disturbed. Whether you choose the stately 9” regular profile or the sleek 5” low profile, this box spring is a canvas for comfort in any bedroom. Opt for this crafted foundation and transform your bed into a bastion of serene sleep.

It’s a boxspring and certainly does what it does what it needs to! Happy to have easy delivery and set up. Now just waiting for the mattress.. Christine. Wales, WI. Thu Apr 23 2026

By Alwyn Home

Twin XL

Bring added comfort and more restful sleep to your life when you choose to add our two-inch split box spring mattress foundation to your bed. Featuring a slat support system made from North American timber, it has three layers of multi-needle quilting in a white knit fabric with fire-safety stitching.

Solidly constructed. Packaging a bit frustrating.. Wenshuo. NJ. Sat Nov 30 2024

By Alwyn Home

Standard Profile (5"), King

Discover the foundational piece your bedroom with our mattress foundation, a testament to understated elegance and robust support. Handcrafted with precision, the slats are arranged to cradle your mattress, ensuring stability that lasts through years of restful slumbers. The unique combination of Kara-Guard padding, in place of ordinary cardboard, offers a silent guardian against noise, so your peace is never disturbed. Whether you choose the stately 9” regular profile or the sleek 5” low profile, this box spring is a canvas for comfort in any bedroom. Opt for this crafted foundation and transform your bed into a bastion of serene sleep.

It’s a boxspring and certainly does what it does what it needs to! Happy to have easy delivery and set up. Now just waiting for the mattress.. Christine. Wales, WI. Thu Apr 23 2026

By Alwyn Home

Low Profile (3.5"), Queen

This high bed base is constructed from a combination of metal frame and foam. It provides stability with its strong steel construction while its 6 legs provide support and stability. It can be used as a box spring without the addition of the legs.

Love it was well worth it very sturdy and comfortable keeps my bed in place will buy again and agin. Catina Rochelle. Indianapolis, IN. Thu Jul 03 2025

By Alwyn Home

King, Low Profile (5")

Discover the perfect foundation for your bedroom with our box spring, designed to combine elegance and durability. Handcrafted with care, the slats are strategically arranged to support your mattress, ensuring lasting stability for years of restful sleep. Featuring Kara-Guard padding, this box spring replaces ordinary cardboard, offering a quiet, noise-free experience that enhances your peace and tranquility. Choose this expertly crafted box spring and elevate your bed to a true sanctuary of serene sleep.

Very lightweight and easy to maneuver. Made the bed height and comfort level so much better.. Marsha. Midlothian, VA. Fri May 29 2026

By White Noise

King, Low Profile (4")

Very strong and easy to assemble. Nativida. Conroe, TX. Fri May 08 2026

By Kingsdown

Split California King

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

By White Noise

California King

This product was constructed of sturdy spruce wood and engineered to be assembled in your room or area of choice. It was covered in the fabric of your choice and style!

By Kingsdown

Split California King

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.

By Serta

Standard, Queen

The stab-base foundation provides consistent support across the bottom of the mattress to help increase durability and the longevity of your mattress.

Like my product, delivered on time, delivery men did a great job putting item in the room of my choice. Thank you. Azalea. Philadelphia, PA. Fri Apr 14 2023

By Republic Design House

Split Queen

The Sto-A-Way Mattress Foundation, designed and constructed by quality furniture craftsmen, is a premium mattress foundation to be used in substitution of a standard box spring or mattress foundation. The Sto-a-way sits on any standard metal bed frame and provides ample support for any style of mattress. The Sto-a-way provides as much storage as a standard dresser. Oversized drawers offer premium drawer construction such as sanded and lacquered drawer interiors, dovetail joinery, birch drawer sides & full extension steel ball-bearing drawer glides. Whether you need storage for your off-season clothes, memorabilia, photo albums, or linens, or if you would just like to eliminate that bulky dresser in the bedroom, the Sto-a-way is for you. Everyone needs more storage.

Clean delivery and set up on king size. King is two twins. Very well made. Stylish and beautiful fabric. Blends with grays or browns. Our adult children now want them for themselves and their children!. Renee. Leocedarville, IN. Mon Feb 25 2019

By Spinal Solution

Full XL

Your search for a sturdy bed support ends here! We have just what you need - a 1.5-inch Split Fully Assembled Bunkie Board for Mattress/Bed Support for your lovely bed frame. We aim at providing the best quality products at economical prices designed especially for your needs. The product here is fully equipped to support your mattress and is highly recommended if you don’t prefer high box springs. Avoid the feeling of your mattress sinking or ripping when directly placed on the bedframe. The stich bonded non-woven fabric of the product gives it a tough edge and durability to endure stress of the mattress. This will allow you to get your beauty sleep peacefully, reduce fatigue, give a sturdy back support and also ensure good blood circulation. The packaging is conveniently created to allow easy transportation and setup. Compact homes are not a problem anymore. The full assembled Bunkie board is ready to use and available in the assorted sizes namely - Twin, Twin XL, Full, Queen & King with a height of 1.5”. The product is to be used on a bed frame for optimal support to your mattress.

By Alwyn Home

Works with all mattresses with any spring, foam, or hybrid mattress which offers the look and functionality of a traditional box spring, with long-lasting durability which comes split in two to easily pass through narrow hallways & doors also fully assembled and ready to use, open the box, screw in the legs and its ready to use. Very Compact resulting fast and easy shipment.

By Alwyn Home

Twin

Works with all mattresses with any spring, foam, or hybrid mattress which offers the look and functionality of a traditional box spring, with long-lasting durability which comes split in two to easily pass through narrow hallways & doors also fully assembled and ready to use, open the box, screw in the legs and its ready to use. Very Compact resulting fast and easy shipment.

Like it but this is the second item that came damaged.. Mary. Lake Mills, WI. Wed Apr 15 2020

By Alwyn Home

Standard Profile (8”), King

They are a proud manufacturer of the finest quality mattresses and box springs, with the highest standards in durability, quality, comfort, and beauty. All of their products are made in the USA to ensure that you get only the best! This collection 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.

Very nice. Tambra. US. Wed Apr 08 2026

By Alwyn Home

King

Bring consistency and comfort to your nightly routine and your deep, restful sleep when you add our two-inch box spring mattress foundation to your bed. Featuring a slat support system made from North American timber, it has three layers of multi-needle quilting in a white knit fabric with fire-safety stitching.

Exactly what I wanted and as described.. Helen. Roseville, CA. Wed Jan 28 2026

By Kingsdown

California King, Standard Profile (8.5")

High-grade durable steel is configured and welded into a unique design for dynamic support of Kingsdown mattresses to further optimize mattress performance and support the body for optimal sleep through the night.

For the price, this Kingsdown foundation is a winner. I used this to replace and old Sterns and Foster box-spring that started to squeak and disturb ones sleep. This replacement has been a pleasant surprise! Highly recommend.. Denise. MO. Sun May 11 2025

By White Noise

The Galipeau Wood Box Spring is proudly manufactured to ensure the finest quality and the highest standards in durability, quality, comfort, and beauty. This Galipeau Wood Box Spring is uniquely designed to give you the kind of undisturbed sleep nature intended.

This box spring is exactly what was needed in order to lower the bed so that it's now easier to get into bed after surgery. Jennifer K.. Valley City, OH. Fri Aug 18 2023