Zinus 5 Inch King WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey
Zinus 5 Inch King WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey
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Zinus 5 Inch King WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Grey

|6 ratings
Zinus 5 Inch King WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, GreyZinus 5 Inch King WonderBox TM Smart Box Spring Quick Assembly Mattress Foundation Durable Metal Frame GreyZinus 9 Inch Twin WonderBox TM Smart Box Spring Quick Assembly Mattress Foundation Durable Metal Frame GreyZinus 5 Inch Full WonderBox TM Smart Box Spring Quick Assembly Mattress Foundation Durable Metal Frame GreyZinus 9 Inch WonderBox TM Smart Box Spring Quick Assembly Mattress Foundation Durable Metal Frame King GreyZinus 9 Inch Full WonderBox TM Smart Box Spring Quick Assembly Mattress Foundation Durable Metal Frame Grey
Bed SizeKing
Actual ColorGray

Key item features

  • EASY DELIVERY & A CLEANER PLANET – Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners
  • EFFORTLESS ASSEMBLY: Tool-free design snaps together in minutes for a frustration-free setup
  • CUSTOMIZABLE COMFORT: Choose from two heights to create your perfect sleep oasis – 5 inches for a lower profile, or 9 inches for an extra boost

Specs

Bed size, KingBox spring type, Mattress FoundationProfile, Low ProfileMaterial, Metal frameBrand, ZinusMax load, 700 lb

About this item

Product details

As the backbone for solid mattress support, a box spring that falls short can make or break your night’s sleep. We developed the Smart BoxSpring® with unbeatable durability and rock-solid stability to keep your mattress in shape for years to come. And our latest quick assembly version gives you total confidence when it comes to setup, requiring fewer bolts and ingeniously designed with easy to use, tool-free brackets. With our simple, step-by-step instructions on hand, you’ll have this foundation built and ready to use within minutes. Built with a strong and durable steel frame and a versatile poly jacquard cover that slips right on, the Smart BoxSpring® is the picture of dependability for any mattress. All packed in a compact shipping box with everything included, even our 5-year worry free warranty! Now that’s peace of mind you can sleep on.
  • EASY DELIVERY & A CLEANER PLANET – Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners
  • EFFORTLESS ASSEMBLY: Tool-free design snaps together in minutes for a frustration-free setup
  • CUSTOMIZABLE COMFORT: Choose from two heights to create your perfect sleep oasis – 5 inches for a lower profile, or 9 inches for an extra boost
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Bed size

King

Box spring type

Mattress Foundation

Profile

Low Profile

Material

Metal frame

Warranty

Warranty information

This product includes a 5-year limited warranty covering defects in materials and workmanship under normal use. See included warranty documentation for full details.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.3 out of 5 stars
stars
6 ratings3 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars83% (5)
  2. 4 stars0% (0)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star17% (1)
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Showing 1-3 of 3 reviews

Aug 24, 2026
Reviewer name: kelly
Item details
Bed size: Queen
Color: White
Sold and shipped bySuperordinary
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Nice boxspring

I bought this queen box spring because I needed one that I could get up narrow stairs. This worked wonderfully. Easy to build too.

Incentivized Review
Helpful?5FLQ1RK0O0MQ19461367753
Jul 31, 2026
Reviewer name: Mariel
Item details
Bed size: Full
Sold and shipped bySuperordinary
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

highly recommend.

Easy to assemble. The frame is very sturdy and packaged well.

Incentivized Review
Helpful?5FLQ1RK0O0MQ19461367753
Jul 10, 2026
Reviewer name: Joyce
Item details
Bed size: Queen
Sold and shipped bySuperordinary
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Only tool needed was me.

Very easy to assemble, I did it by myself. No tools needed. Easy to carry and placed on bedframe by myself. The cover fits perfect and looks great.

Incentivized Review
Helpful?5FLQ1RK0O0MQ19461367753
Current price is $109.99
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Sold and shipped by SuperordinaryPro Seller
4.826666666666667 out of 5 stars
4.8 stars out of 5, based on 75 seller reviews(4.8)
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Free Holiday returns until Jan 31
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$131.90
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Shipping, arrives by Fri, Nov 20 to Columbus, 43215
Sold and shipped by TRUE MART
Extended holiday returns
Free Holiday returns until Jan 31