Looking for the best king box spring? Here are the top choices in various designs and price ranges to help you choose the best product. The list we have mentioned below consists of products from the long-standing reputed brands. In case you get confused, we have listed the king box spring based on certain criteria which will be based on ease of use, budget, and other criteria.

As per our recommendation, Zinus Deepak Easy Assembly Wood Slat 1.6 Inch Bunkie Board / Bed Slat Replacement, King is undoubtedly the best king box spring available easily. It has an amazing quality, extremely easy to handle, and budget-friendly. Talking about other choices, we have covered only the best ones. So you don’t have to worry while buying the king box spring online as everything you need to make a wiser decision has been given below. Now let’s quickly take a look at the Top king box spring in the market.

Do check out our list of some of the best king box spring before making a Purchase

Best king box spring

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Product Title
Score

ZINUS 9 Inch Smart Metal Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King
9.9

ZINUS 5 Inch Smart Metal Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King
9.6

AmazonBasics Mattress Foundation / Smart Box Spring for King Size Bed, Tool-Free Easy Assembly - 5-Inch, King
9.2

Zinus Walter 7.5 Inch Smart Box Spring / Mattress Foundation / Built-to-Last Wood & Metal Structure / Easy Assembly, King
8.7

ZINUS 7 Inch Smart Metal Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King
8.3

Zinus Deepak Easy Assembly Wood Slat 1.6 Inch Bunkie Board / Bed Slat Replacement, King
8.2

Zinus Victor 4 Inch Quick Lock Box Spring / Mattress Foundation / Built-to-Last Metal Structure / Low Profile / Easy Assembly, King
7.8

AmazonBasics Mattress Foundation, Smart Box Spring, Tool-Free Easy Assembly - 7-Inch, Full
7.5

Zinus Jayanna 4 Inch BiFold Box Spring / Mattress Foundation / Zero Assembly / Sturdy Metal Structure / Low Profile, King
7.2

NOAH MEGATRON 7 Inch Box Spring King, Low Profile Metal Boxsprings/Mattress Foundation/Bunkie Board - 3000LBS Strong Steel Structure/Easy Assembly (King)
6.6

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Product Title

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

9.9

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

9.6

AmazonBasics Mattress Foundation / Smart Box Spring for King Size Bed, Tool-Free Easy Assembly - 5-Inch, King

9.2

Zinus Walter 7.5 Inch Smart Box Spring / Mattress Foundation / Built-to-Last Wood & Metal Structure / Easy Assembly, King

8.7

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

8.3

Zinus Deepak Easy Assembly Wood Slat 1.6 Inch Bunkie Board / Bed Slat Replacement, King

8.2

Zinus Victor 4 Inch Quick Lock Box Spring / Mattress Foundation / Built-to-Last Metal Structure / Low Profile / Easy Assembly, King

7.8

AmazonBasics Mattress Foundation, Smart Box Spring, Tool-Free Easy Assembly - 7-Inch, Full

7.5

Zinus Jayanna 4 Inch BiFold Box Spring / Mattress Foundation / Zero Assembly / Sturdy Metal Structure / Low Profile, King

7.2

NOAH MEGATRON 7 Inch Box Spring King, Low Profile Metal Boxsprings/Mattress Foundation/Bunkie Board - 3000LBS Strong Steel Structure/Easy Assembly (King)

6.6

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


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

$152.01  in stock
12 new from $150.00
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • THE LAST BOX SPRING YOU’LL 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 5 Inch Smart Metal Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, King


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

$270.00
$157.01  in stock
6 new from $155.00
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • THE LAST BOX SPRING YOU’LL 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

AmazonBasics Mattress Foundation / Smart Box Spring for King Size Bed, Tool-Free Easy Assembly – 5-Inch, King


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AmazonBasics Mattress Foundation / Smart Box Spring for King Size Bed, Tool-Free Easy Assembly - 5-Inch, King

$132.00  in stock
1 new from $132.00
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • Offers the look and functionality of a traditional box spring, but made from steel for longer-lasting durability sturdy enough to support any spring, 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 zip securely together for full coverage; cover is removable for spot cleaning
  • Easy Assembly: New frame construction allows for easy assembly in minutes with no tools required
  • Foldable steel frame to be packed in one smart package and faster delivery to your front

Zinus Walter 7.5 Inch Smart Box Spring / Mattress Foundation / Built-to-Last Wood & Metal Structure / Easy Assembly, King


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Zinus Walter 7.5 Inch Smart Box Spring / Mattress Foundation / Built-to-Last Wood & Metal Structure / Easy Assembly, King

$172.09  in stock
3 new from $172.09
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • 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
  • 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

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


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

$300.00
$134.99  in stock
5 new from $134.99
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • THE LAST BOX SPRING YOU’LL 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

Zinus Deepak Easy Assembly Wood Slat 1.6 Inch Bunkie Board / Bed Slat Replacement, King


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Zinus Deepak Easy Assembly Wood Slat 1.6 Inch Bunkie Board / Bed Slat Replacement, King

$124.03  in stock
3 new from $124.03
4 used from $102.21
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • Strong and Sturdy 1.6 inch profile wood slat mattress support. Ideal for use with platform beds, bunk beds and daybeds
  • Fast and easy assembly with convenient and compact packaging
  • Offers additional support for spring, hybrid, and memory foam mattresses
  • Foam padded tape is added to the steel frame for noise-free use and non-slip tape on the wooden slats prevents your mattress from moving
  • Dimensions: 75.50'' x 79' 'x 1.60''

Zinus Victor 4 Inch Quick Lock Box Spring / Mattress Foundation / Built-to-Last Metal Structure / Low Profile / Easy Assembly, King


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Zinus Victor 4 Inch Quick Lock Box Spring / Mattress Foundation / Built-to-Last Metal Structure / Low Profile / Easy Assembly, King

$182.01  in stock
5 new from $180.00
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • HASSLE & HEADACHE FREE - The Quick Lock Metal Box Spring comes together with easy-to-follow instructions, fewer bolts and absolutely no headaches; assembly that’s intuitive and packaging that seems to defy the laws of physics
  • DURABLY ENGINEERED - A durable steel frame is 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
  • 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, tools and instructions are packed into one compact box that ships straight to your door; Quick Snap assembly system makes set-up intuitive and stress-free
  • 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

AmazonBasics Mattress Foundation, Smart Box Spring, Tool-Free Easy Assembly – 7-Inch, Full


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AmazonBasics Mattress Foundation, Smart Box Spring, Tool-Free Easy Assembly - 7-Inch, Full

$131.24  in stock
1 new from $131.24
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • Offers the look and functionality of a traditional box spring, but made from steel for longer-lasting durability sturdy enough to support any spring, 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 zip securely together for full coverage; cover is removable for spot cleaning
  • Easy Assembly: New frame construction allows for easy assembly in minutes with no tools required
  • Foldable steel frame to be packed in one smart package and faster delivery to your front

Zinus Jayanna 4 Inch BiFold Box Spring / Mattress Foundation / Zero Assembly / Sturdy Metal Structure / Low Profile, King


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Zinus Jayanna 4 Inch BiFold Box Spring / Mattress Foundation / Zero Assembly / Sturdy Metal Structure / Low Profile, King

$321.01  in stock
4 new from $302.19
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • DIMENSIONS: 79" X 75.5" X 4" | Weight: 50.8 lb
  • BOX SPRING: A bed frame or platform bed is required to support this foundation (sold separately)
  • AS SIMPLE AS UNFOLD & UNWIND - Requiring no tools and zero tedious assembly, the innovative BiFold 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; slats are spaced 2.8 inches apart; twin size supports a maximum weight capacity of 250 lbs, while all other sizes can support up to 500 lbs
  • LOW PROFILE DESIGN - A 4 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floor

NOAH MEGATRON 7 Inch Box Spring King, Low Profile Metal Boxsprings/Mattress Foundation/Bunkie Board – 3000LBS Strong Steel Structure/Easy Assembly (King)


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NOAH MEGATRON 7 Inch Box Spring King, Low Profile Metal Boxsprings/Mattress Foundation/Bunkie Board - 3000LBS Strong Steel Structure/Easy Assembly (King)

$169.99  in stock
1 new from $169.99
Free shipping
Buy Now
Amazon.com
as of March 25, 2021 1:05 am

Features

  • Low Profile Box Spring King Size; Measures: 79.5 by 75.5 by 7 inches (LxWxH); Weighs 55 pounds
  • Strong Structure Mattress Foundation; Constructed of Durable Steel Structure, which offers a noise-free, excellent support for your mattress. Supports up to 3000 LBS
  • Easy Assembly Mattress Box Spring; All tools included, can be easy set up in 30 minutes; No Bedframe Included
  • Box Spring Cover Included; Fabric cover is made of the highest quality microfiber, shrink and wrinkle resistant
  • Eco-friendly & Sturdy; All of the materials are eco-friendly. Enjoy your night time on NOAH MEGATRON box spring

All the 10 king box spring reviewed in this article offers distinct features and powerful performance. The market is full of choices when it comes to select good king box spring. With this list, we hope we have helped you narrow down your choices and choose that one best product that delivers all that you wish for.