MAF 5 Inch Low Profile Metal Box Spring King
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A steel king-size foundation for buyers wanting a lower bed height than a traditional box spring, with a high load rating and folding legs for setup.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0DMN5JGT9Model: MT33Category: Box Springs
Colors Available
Sizes Available
Need a different one? Pick on Amazon →
Overview
A low-profile, 5 inch metal box spring foundation built for king mattresses, with welded steel construction rated to 3500 pounds and a removable washable cover.
This is a bed foundation, not a mattress, meant to replace a traditional 9 inch box spring under a king mattress with a slimmer metal alternative. The welded steel joints and U-shaped grooves are aimed specifically at cutting the squeaking common in older box spring sets.
- 5 inch low-profile height
- 3500 lb support rating
- Folding welded steel frame
- Removable washable cover
Who it's for
King-bed owners who want a lower overall bed height than a standard box spring, or who want a quieter metal foundation instead of an aging wood-and-fabric box spring.
Pros and cons
- 5 inch low profile for a lower bed height than a standard box spring
- 3500 lb rated support
- Removable, washable cover
- Folding design meant to simplify assembly
- King size only, no other mattress sizes in this listing
- Still needs a compatible frame or center support underneath despite the folding legs
Performance notes
Welded steel slats and a folding frame are rated to support 3500 pounds, with rounded corners for safety and a removable, washable fabric cover for cleaning.
Specifications
| Brand | MAF |
|---|---|
| Model | MT33 |
Frequently asked questions
What size mattress does this box spring fit?
This listing is for a king size box spring only, measuring 78.8 by 75.5 inches.
How tall is it compared to a standard box spring?
It is a low-profile 5 inch foundation, shorter than a typical 9 inch box spring.
Does it work with memory foam or hybrid mattresses?
The listing states it is compatible with innerspring, memory foam, latex and hybrid mattresses.