This protects the mattress from splinters that can come from the plywood.
Best plywood for mattress support.
Hope this helps brian.
If you do not want to throw out your box spring just yet adding a few layers of plywood will make your box spring firmer.
Plywood thinner than 3 4 inch should not be used as it will not be strong enough to hold the weight of a bed mattress and a person lying down.
Measure the mattress and cut a sheet of 3 8 inch plywood to the same size.
Most people prefer a firm mattress and rightly so.
Sagging mattress mattresses sag for two reasons.
There are many ways to make your mattress firmer.
The thickness requirements for plywood vary depending on the type of mattress.
The plywood must be 0 75 inches thick.
Using inch thick plywood is okay but ideally you should use plywood thicker than that to provide adequate support.
It s not the best solution but plywood under the mattress is a decent temporary fix.
All these types of mattresses need is a firm uniform bottom for proper support of the mattress.
As i say in this particular article the 1 2 plywood or pressboard over an existing foundation works great with memory foam or latex mattresses.
The plywood can be exactly 3 4 inch thick but ideally it should be thicker.
Using plywood board between the mattress and the bed frame can provide the additional support you need.
If finished the plywood can be put on the bed frame and the mattress directly on the plywood.
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A tarp or a non penetrative sheet can be used to cover the plywood.
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Insufficient support from beneath or a breakdown in their internal support structures.
A mattress with plywood will not give the same support as a fresh new mattress.
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Wood under the mattress can splinter causing the mattress fabric to snag and unravel especially in the case of 2 sided models.
Using plywood may not allow the mattress to breathe properly and the wood can hold moisture even mold.
Plywood should be of the same dimensions as the mattress and the bed frame.