5 Star King Sized Box Spring

of June 2024
1
Best ChoiceBest Choice
ZINUS 7 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King
Zinus
Zinus

10
Exceptional
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2
Best ValueBest Value
ZINUS 9 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King
Zinus
Zinus

9.9
Exceptional
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3
ZINUS Metal Box Spring with Wood Slats /9 Inch Mattress Foundation / Sturdy Steel Structure / Easy Assembly, King
Zinus
Zinus

9.8
Exceptional
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4
Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly
Amazon Basics
Amazon Basics

9.7
Exceptional
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5
ZINUS 5 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King
Zinus
Zinus

9.6
Exceptional
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6
ZINUS No Assembly Metal Box Spring / 4 Inch White Mattress Foundation / Sturdy Metal Structure, Split King
Zinus
Zinus

9.5
Excellent
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7
Casper Sleep Box Spring Foundation for King Mattress
Casper
Casper

9.4
Excellent
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8
Zinus Keenan 14 Inch Free Standing Smart Box Spring / Mattress Foundation / With 9 Support Legs / Strong Steel Structure / Easy Assembly Required, King
Zinus
Zinus

9.3
Excellent
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9
Signature Design by Ashley 10" Mattress Box Spring with Metal Foundation, King, Black
Signature Design by Ashley
Signature Design by Ashley

9.2
Excellent
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10
Zinus Edgar 8 Inch Wood Box Spring / Mattress Foundation / Sturdy Wood Structure / High Profile / Easy Assembly, King
Zinus
Zinus

9.1
Excellent
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About King Sized Box Spring

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ZINUS 7 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King

THE LAST BOX SPRING YOULL EVER NEED - Unlike a traditional box spring, the Smart box spring is made of solid steel that comes together in no time and is backed by our Zinus Peace of Mind 5 year warranty. DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs. THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door. Box spring only, a bed frame or platform bed is required to support this foundation and is sold separately. Worry-free 5 year limited warranty included. King 79 X 76 X 7, 43.98 lb.

ZINUS 9 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King

THE LAST BOX SPRING YOULL EVER NEED - Unlike a traditional box spring, the Smart box spring is made of solid steel that comes together in no time.. DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs. HIGH PROFILE DESIGN - A 9 inch height is perfect for shorter mattresses or for those who enjoy their bed higher off the floor For the fastest resolution and to avoid delays, please describe your issue as precisely as possible. THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door. Worry-free 5 year limited warranty included box spring only, a bed frame or platform bed is required to support this foundation and is sold separately.

ZINUS Metal Box Spring with Wood Slats /9 Inch Mattress Foundation / Sturdy Steel Structure / Easy Assembly, King

A MATTRESS GAME-CHANGER - Any decent mattress needs a good foundation behind it, and this box spring is one of our best built with all of the trusted support we put into our ever-so-popular platform beds, this game-changing box spring has the total package - an unwavering steel structure, reliable, closely spaced wood slats and a compact, cleverly developed, well, package. DURABLY ENGINEERED - Durable steel and wood slats are used to construct the interior framework of this foundation twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs. HIGH PROFILE DESIGN - A 9 inch height is perfect for shorter mattresses or for those who enjoy their bed higher off the floor. THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door. Worry-free 5 year limited warranty included box spring only, a bed frame or platform bed is required to support this foundation and is sold separately.

Amazon Basics Smart Box Spring Bed Base, 5-Inch Mattress Foundation - King Size, Tool-Free Easy Assembly

The look and functionality of a traditional box spring, but made from steel to support any spring, memory foam, or hybrid mattress. Durable steel frame and horizontal slats provide sturdy, reliable support for any same-size mattress. 2-piece fabric top and bottom covers the frame and zips together for full coverage cover is removable for spot cleaning. Easy tool-free assembly interlocking frame components assemble in minutes. Outer frame folds down for compact, convenient shipping to your front door. King size measures 5 x 79 x 75.5 inches HxLxW.

ZINUS 5 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King

THE LAST BOX SPRING YOULL EVER NEED - Unlike a traditional box spring, the Smart box spring is made of solid steel that comes together in no time and is backed by our Zinus Peace of Mind 5 year warranty. DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs. LOW PROFILE DESIGN - A 5 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floor. THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door. Worry-free 5 year limited warranty included box spring only, a bed frame or platform bed is required to support this foundation and is sold separately. Core Composition Steel Frames, Fabric Non Woven with Jacquard Boarder.

ZINUS No Assembly Metal Box Spring / 4 Inch White Mattress Foundation / Sturdy Metal Structure, Split King

AS SIMPLE AS UNFOLD UNWIND - Requiring no tools and zero tedious assembly, the innovative No Assembly box spring requires only unfolding to become bedtime ready the hardest part will be taking it out of the box. DURABLY ENGINEERED - Durable steel is used to construct the interior framework of this reliable foundation twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs King and Cal King sizes are split versions. LOW PROFILE DESIGN - A 4 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floor. THOUGHTFULLY PACKAGED - All parts and instructions are packed into one compact box that ships straight to your door. Worry-free 5 year limited warranty included box spring only, a bed frame or platform bed is required to support this foundation and is sold separately.

Casper Sleep Box Spring Foundation for King Mattress

Foundation dimensions 75.5 W x 79 L x 7.5 H Metal Bed Frame 76.2 W x 76.7 L x 7.3 H Weight 89 lbs. Hold weight 750 lbs. Slats distance from each other 4. Ships in a compact box and can be easily assembled in minutes - without any tools Designed and assembled in the USA Non-Woven Interior and Slat Upholstery. The Casper foundation is engineered to provide excellent support under your Casper mattress but can be used with other mattresses in place of a traditional box spring. Engineered with solid wood and rigorously tested for durability and proven to stand up to years of sleep. Slats are positioned a perfect four inches apart for optimal support. Compatibility-works with any mattress. Requires a simple metal bed frame, slatted bed frame, or a platform if you want extra height. The foundation should not be put directly on the floor.

Zinus Keenan 14 Inch Free Standing Smart Box Spring / Mattress Foundation / With 9 Support Legs / Strong Steel Structure / Easy Assembly Required, King

Strong and Sturdy steel structure. Convenient and compact packaging. All tools included for assembly. Worry free 5 year limited warranty Box Spring only, Bed frame sold separately. Available in Twin, Full, Queen, King. Note The size 76 x 80 x 14 includes the box spring and the legs of the product.

Signature Design by Ashley 10" Mattress Box Spring with Metal Foundation, King, Black

INNOVATIVE BED FOUNDATION Need support for a king size mattress Catering to a busy lifestyle, it is the perfect alternative to the standard box spring and it's the last foundation you'll ever need. STURDY METAL CONSTRUCTION Built to last and designed for durability and longevity, this box spring is constructed of sturdy metal instead of wood. It features a removable fabric cover and rounded corners for added safety. UNIQUE SHIPPABLE DESIGN The perfect alternative to the standard box spring, it is ready to assemble in the comfort of your home. It features a removable fabric cover and rounded corners for added safety. DIMENSIONS 75.63 W x 78.75 D x 9.88 H. This item is also available in all other sizes, including california king and twin XL. ASSEMBLY REQUIRED Easy-to-follow instructions, hardware and tools included. Two people recommended. All parts, tools and instructions are packed into one compact box that ships straight to your door. DIRECT FROM THE MANUFACTURER Ashley Furniture goes the extra mile to package, protect and deliver your purchase in a timely manner. BUY WITH CONFIDENCE Designed and manufactured by Ashley Furniture Industries. The trusted source for stylish furniture, lighting, rugs, accessories and mattresses. For every taste and budget.

Zinus Edgar 8 Inch Wood Box Spring / Mattress Foundation / Sturdy Wood Structure / High Profile / Easy Assembly, King

NATURAL WOOD INTERIOR - Engineered with thicker wood slats than most traditional box springs, this strong and steady solid wood frame is ideally suited to support memory foam or latex mattresses. DURABLY ENGINEERED - Durable wood is used to construct the interior framework of this reliable foundation slats are spaced 2.8 3.4 inches apart twin size supports a maximum weight capacity of 250 lbs, while all other sizes can support up to 500 lbs. HIGH PROFILE DESIGN - An 8 inch height is perfect for shorter mattresses or for those who enjoy their bed higher off the floor. THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door. Worry-free 5 year limited warranty included box spring only, a bed frame or platform bed is required to support this foundation and is sold separately.