I use a sponge or sprayer to wet the concave side of the plywood hot water works best.
How to straighten a warped sheet of plywood.
One downside to plywood is its tendency to cup.
Wood warps from exposure to moisture which curves plywood or boards for sub flooring or framing a home.
How to fix warped doors.
The concave part needs to face downwards.
Using a sponge that s slightly damp moisten the concave side of each piece.
Now the sun or the warm interior air helps to dry out the convex humped side of the plywood.
Plywood pieces can warp if they have been improperly stored or exposed to moisture.
Doors not just cabinet doors can become warped as well especially homemade doors made of plywood.
Plywood isn t the only thing that can become warped even after a project is finished.
However last year i kept getting 3 4 maple both unfinished and pre finished that would warp 1 over 4.
At the same time moisture is being absorbed into the concave side.
I think we all contend with a certain amount of warped plywood sheets due to humidity inconsistencies.
It s much more likely to stay flat.
In the future you may want to try oak mdf medium density fiberboard instead of plywood.
This process will take several hours but once it is finished the plywood will be rejuvenated and ready to use for your project.
Now keep your wrapped wood on a flat surface that also will be able to bear the temperature of your iron.
I just kept returning it to my distributor but the problem was not resolved until the distributor stopped buying from one particular mill.
You can flatten them again with hot water and a warm environment.
Set your iron to the highest temperature and let it heat properly for about 2 6.
Using warped planks in framing a home or in a sub floor may result in problems as floors and walls begin to buckle.
Then i lay the sheet moist side down on a shop floor or a driveway.
How to fix other warped wood items.
Give the plywood some time and see if it flattens itself.
Wrap your warped wood in two large moist towels and make sure the warped parts are properly covered.
