The 8 Best Box Springs of 2021

Best Overall: Zinus 9 Inch Smart Metal Box Spring

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For an all-around great box spring with solid construction and durable engineering, we recommend the Zinus Smart Metal Box Spring. Since it's made of heavy-duty steel, all sizes above a twin bed can support up to 700 pounds of weight, with a five-year warranty to back it up.

This high-profile platform is 9 inches tall, so it's perfect for those who like their bed to be a little more elevated. The Smart is super easy to put together and comes with all the necessary tools. It has a soft knitted cover and can go over any bed frame or platform bed.

Best Budget: Wayfair Sleep Metal Box Spring

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If you're looking for something a bit more affordable, the Wayfair Sleep Metal Box Spring is a solid choice. Made of steel with rods instead of springs, it's exceptionally sturdy and easy to assemble—all you'll need is an Allen wrench.

This box spring has a breathable netted fabric cover that'll match virtually any bedding set or bedroom decor scheme. It's available in either a 5-inch or 9-inch profile height and is compatible with most bed frames.

Best for Memory Foam: Mainstays 5" White Jacquard Smart Box Spring

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Constructed out of ultra-sturdy steel, the Mainstays Smart Box Spring can support a memory foam mattress and any combination mattress with gel, latex, or intersprings. It comes with a white jacquard cover, which is removable and machine-washable.

This versatile 5-inch box spring can be set up in seconds—no tools needed. Plus, if you need to move it or store it, it folds back up into a conveniently compact configuration.

Best Low-Profile: Beautyrest Flat Foundation

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With solid steel struts, a non-skid top, and reinforced corner guards, the extra-sturdy Beautyrest Foundation is designed to minimize any motion or shifting. The low-profile option is 5.5 inches tall with a clean, minimalist look.

This box spring has a neutral gray cover and can be used with any mattress or bed frame. However, if you use it with a Beautyrest bed and mattress, it's backed by a 10-year warranty.

Best Wood: Spinal Solution Wood Mattress Foundation

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Unlike most others in its category, the Spinal Solution Mattress Foundation is constructed out of wood. The support slats are designed to evenly distribute the weight of the mattress, which can help minimize tossing and turning. Though it weighs only 40 pounds, it supports up to 800 pounds of weight.

This box spring can be set up within seconds and is easy to store and transport. It comes in two profile heights, 4.5 inches and 7.75 inches.

Best Box Foundation: Tuft & Needle Box Foundation

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Tuft & Needle's take on the box spring is this 7-inch Box Foundation. Whether you want your bed to sit a little taller or need something to go over a standard bed frame, you can't go wrong with this handy base.

With sturdy wood construction and a woven stone-gray cover, the Box Foundation is durable with a mid-century feel. It comes in a compact box and can be set up in minutes. Also, the non-skid fabric cover ensures your mattress stays in place, so you won't have to worry about readjusting it each night.