King Open Box Box Springs & Foundations

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.

Do yourself a favor and buy this box spring. I got the split Cal king. It arrived folded which made it incredibly easy to move and carry and place. Genius. Just installed so we’ll see how it ages but highly recommend right now!. Elena. Rochester, NY. Thu Sep 17 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

Bunkie Board, King Size 76.8 x 70.1 in, Foldable Bed Board Under Mattress with Nylon Webbing, Plywood, Rounded Edges, Anti-Sag Design for Metal Frames, Sleeper Sofas, Platform and Bunk Beds

Works great on our vintage king size bed frame.. Betty. US. Sat Sep 26 2026

Utilizing the less-is-more motto, the Upholstered Platform Bed anchors your room in effortless sophistication. A fresh take on a panel-style bed, the low profile, clean lines, and rounded corners of the upholstered headboard lend a modern feel to the look. Adding soft texture to your bedroom design, the headboard, side rails, and foot rail all feature high-density foam padded upholstery. Not only is the upholstery classic feel, but it is also water and stain-resistant, making it an excellent choice for daily living. Timeless, tailored, yet approachable, the Upholstered Platform Bed can transition through bedding changes, wall color swaps, and total aesthetic transformations.