Zinus 5 Inch Metal Smart Box Spring with Quick Assembly
- Box Spring
- 700 pounds
- Fabric, Steel
- 1
A straightforward steel frame queen box spring with tool-free assembly, useful as a foundation under an existing bed frame rather than a full bed system.
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How it ranks among the 22 box springs we track
4.2★ across 1,200 Amazon ratings, Bayesian-smoothed toward the category average.
1,200 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 22 box springs we track - how the scorecard works · full box springs data report. Confidence: high - strong rating volume and complete data.Updated 5 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 5 inch metal box spring foundation sized for queen mattresses, built around a steel frame with a fabric cover and tool-free locking brackets for quick assembly. It supports a mattress on top of an existing bed frame or platform bed, which is sold separately.
This is a foundation, not a full bed: Zinus is explicit that a bed frame or platform bed is required underneath it, and it exists only to support a mattress at standard box spring height. The main change from earlier Smart BoxSpring versions is fewer bolts and tool-free brackets, aimed at cutting assembly time rather than adding features. Weight capacity varies by size: twin and twin XL are rated to 350 lbs, while queen and larger sizes are rated to 700 lbs.
- 5 inch metal box spring, queen size
- Steel interior frame, fabric outer cover
- Tool-free locking brackets for quick setup
- 5 year limited warranty
Who it's for
Fits anyone who already owns a queen bed frame or platform base and needs a low cost foundation to bring a mattress up to standard height. Not a standalone bed solution; a frame underneath and a mattress on top are both needed separately.
Strengths and trade-offs
Drawn from this product's published specifications.
- Tool-free brackets speed up assembly
- Fabric cover gives a finished look under a mattress
- 700 lb capacity on queen and larger sizes
- Needs a separate bed frame or platform
- No reviews yet to confirm long-term durability
Performance notes
The steel interior frame is rated to 700 lbs for queen and larger sizes, versus 350 lbs for twin and twin XL, so the weight ceiling is worth checking against the mattress and sleeper weight combined. Assembly relies on tool-free locking brackets rather than the bolt-heavy designs older box springs used, which is the main change in this version. It ships as a single compact box rather than the bulkier packaging typical of steel foundations.
Specifications
| Brand | Zinus |
|---|---|
| Model | ZU-ABS-5QS |
| Dimensions & fit | |
| Maximum Weight Recommendation | 700 pounds |
| Item Weight | 36.8 pounds |
| Item Dimensions | 78.7 × 59.5 × 5 inches |
| Size | Queen |
| Item Depth | 5 inches |
| Item Dimensions L x W x H | 78.7 × 59.5 × 5 inches |
| Compatible With Mattress Size | Queen |
| Construction & materials | |
| Material Type | Fabric, Steel |
| Color | Grey |
| Finish Types | Steel |
| Furniture Finish | Alloy Steel |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Included Components | Cover, Slat, Steel Frame |
| Warranty & support | |
| Manufacturer Warranty Description | 5 years |
| Other details | |
| Number of Items | 1 |
| Other Special Features of the Product | Durable |
| Set Name | Queen, 5 inch |
| Item Type Name | Box Spring |
| Product Care Instructions | Wipe with Dry Cloth |
| Item Highlight | Mattress Foundation with Fabric Outer Cover, Strong Metal Frame, Easy Assembly |
| Style Name | New/upgraded with quick assembly |
| Shape | Rectangular |
| Assembly Instructions Description | Instructions for easy, tool-free assembly are provided. |
| Form Factor | Rectangular |
Other Zinus box springs
How it compares
This product against the closest alternatives we track in box springs.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Zinus 5 Inch Metal Smart Box Spring with Quick AssemblyThis product | 4.2 / 5 | 1,200 | 4.1 / 5 |
| Amazon Basics Smart Box Spring Bed BaseAmazon Basics | 4.4 / 5 | 38,700 | 4.4 / 5 |
| 5 Inch Box Spring for Queen BedTROZULER | 4.2 / 5 | 2,800 | 4.2 / 5 |
| EMODA 5 Inch Box Spring Queen Size Mattress Foundation with Fabric CoverEMODA | 4.2 / 5 | 2,800 | 4.2 / 5 |
| Maenizi 9 Inch Box Spring for Queen BedMaenizi | 4.3 / 5 | 1,600 | 4.1 / 5 |
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Questions about the Zinus ZU-ABS-5QS
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the Zinus Smart Box Spring include a bed frame?
No, it is the foundation only; a bed frame or platform bed is required underneath and sold separately.
What weight can the queen size Zinus box spring hold?
Zinus rates queen and larger sizes at up to 700 lbs; twin and twin XL are rated lower, at 350 lbs.
How long does assembly take?
Zinus built this version with fewer bolts and tool-free locking brackets specifically to cut assembly time versus its earlier box springs.