How To Straighten A Warped Sheet Of Plywood

Using a sponge that s slightly damp moisten the concave side of each piece.

How to straighten a warped sheet of plywood.

In the future you may want to try oak mdf medium density fiberboard instead of plywood. Using warped planks in framing a home or in a sub floor may result in problems as floors and walls begin to buckle. As humidity or moisture from rain water falls onto the wood the lumber absorbs the liquid causing it to expand and bend. However last year i kept getting 3 4 maple both unfinished and pre finished that would warp 1 over 4.

You can flatten them again with hot water and a warm environment. The concave part needs to face downwards. I just kept returning it to my distributor but the problem was not resolved until the distributor stopped buying from one particular mill. One downside to plywood is its tendency to cup.

Doors not just cabinet doors can become warped as well especially homemade doors made of plywood. Wrap your warped wood in two large moist towels and make sure the warped parts are properly covered. Then i lay the sheet moist side down on a shop floor or a driveway. This process will take several hours but once it is finished the plywood will be rejuvenated and ready to use for your project.

Plywood isn t the only thing that can become warped even after a project is finished. Set your iron to the highest temperature and let it heat properly for about 2 6. How to fix other warped wood items. How to fix warped doors.

I think we all contend with a certain amount of warped plywood sheets due to humidity inconsistencies. Plywood pieces can warp if they have been improperly stored or exposed to moisture. Now the sun or the warm interior air helps to dry out the convex humped side of the plywood. The bowing that occurs is actually the plywood shrinking.

It s much more likely to stay flat. Wood warps from exposure to moisture which curves plywood or boards for sub flooring or framing a home. I use a sponge or sprayer to wet the concave side of the plywood hot water works best. For your convenience here are some ideas on how to fix other common warped wood items.