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The COMASACH 9" is a metal box spring that replaces a traditional wood foundation under a Full mattress. Its steel frame is built for heavier loads than most wood box springs, and it assembles without tools. It suits sleepers who want a firm, quiet base and a simple setup. Against wood foundations it trades some give for durability and holds up better over time; owners rate it well overall, though a few mention noise and fit issues.
In stockSold by COMASACHReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Availability unknown
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Lowest price we've seen: $74.28 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Owners rate it 4.3 out of 5 across 108 ratings. Most praise the sturdy steel build and quick, tool-free setup. A minority mention noise and fit problems with their bed frames.
The COMASACH 9" Heavy-Duty Metal Box Spring Mattress Foundation gives a mattress traditional support with added durability. It has a metal build and a black finish, and it comes in a Full size.
It sets up in seconds with no tools required. It fits standard bed frames and can be used right after installation. It is noise-free in use.
