Zinus Victor 4 Inch Quick Lock Box Spring / Mattress Foundation / Built-to-Last Metal…
- Box Spring
- 700 pounds
- Fabric, Steel
- 1
- Better rated than 91%
- More reviewed than 86%
A low-profile 4 inch foundation for a king mattress, built to sit on an existing frame or platform rather than serve as a stand-alone base.
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Styles Available
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How it ranks among the 22 box springs we track
4.7★ across 9,800 Amazon ratings, Bayesian-smoothed toward the category average.
9,800 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ 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 bed frame or platform still has to do the structural work; Zinus's Victor Quick Lock Box Spring just adds a 4 inch low-profile foundation on top, with a steel frame and steel slats under a poly jacquard cover.
This is a foundation, not a bed. It has no legs of its own and depends entirely on a bed frame or platform underneath it, and its main selling point is height: at 4 inches it sits notably lower than a traditional 9 inch box spring, useful under a mattress that would otherwise sit too high.
- 4 inch low-profile height
- Steel frame and steel slats
- 700 lb weight rating (king size)
- 5 year limited warranty
Who it's for
Fits someone replacing an old, tall box spring under an existing bed frame or platform who wants a lower 4 inch profile instead. It is not a stand-alone bed base, since a frame or platform is still required underneath it.
Strengths and trade-offs
Drawn from this product's published specifications.
- Low 4 inch profile under a tall mattress
- Rated to 700 pounds for king size
- Quick lock assembly with minimal tools
- 5 year limited warranty included
- Requires a separate bed frame or platform
- No reviews yet on this listing
Performance notes
A steel interior frame with steel slats and a poly jacquard cover supports the mattress at a 4 inch height, low enough to sit under a taller mattress without adding much overall bed height. Zinus rates the twin size to 350 pounds and every other size, including this king, to 700 pounds, and the quick lock hardware is meant to go together without extensive tools.
Specifications
| Brand | Zinus |
|---|---|
| Model | OLB-QLBS-4K |
| Dimensions & fit | |
| Maximum Weight Recommendation | 700 pounds |
| Item Weight | 59.5 pounds |
| Item Dimensions | 79 × 75 × 4 inches |
| Size | King |
| Item Dimensions L x W x H | 79 × 75 × 4 inches |
| Compatible With Mattress Size | King |
| Construction & materials | |
| Material Type | Fabric, Steel |
| Color | White |
| Finish Types | Unfinished |
| Furniture Finish | White |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Included Components | Box Spring, Installation Manual |
| Warranty & support | |
| Manufacturer Warranty Description | 5 years |
| Other details | |
| Number of Items | 1 |
| Other Special Features of the Product | Low Profile Design, Slatted |
| Item Type Name | Box Springs |
| Product Care Instructions | Wipe with Dry Cloth |
| Style Name | 4 Inch |
| Shape | Rectangular |
| Assembly Instructions Description | Easy-to-follow instructions for Quick Snap assembly system |
| Form Factor | Rectangular Box Spring |
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 Victor 4 Inch Quick Lock Box Spring / Mattress Foundation / Built-to-Last Metal…This product | 4.7 / 5 | 9,800 | 4.6 / 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 OLB-QLBS-4K
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the Zinus Victor box spring include a bed frame?
No, a bed frame or platform bed is required separately to support it.
What is the weight capacity for the king size?
Zinus rates king and other sizes besides twin at 700 pounds; twin is rated to 350 pounds.
How tall is this box spring?
It is a low-profile 4 inch design, shorter than a traditional box spring.