How To Straighten A Warped Sheet Of Plywood

As humidity or moisture from rain water falls onto the wood the lumber absorbs the liquid causing it to expand and bend.

How to straighten a warped sheet of plywood.

Then i lay the sheet moist side down on a shop floor or a driveway. Using warped planks in framing a home or in a sub floor may result in problems as floors and walls begin to buckle. How to fix warped doors. The bowing that occurs is actually the plywood shrinking.

This process will take several hours but once it is finished the plywood will be rejuvenated and ready to use for your project. 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. Set your iron to the highest temperature and let it heat properly for about 2 6.

In the future you may want to try oak mdf medium density fiberboard instead of plywood. Plywood pieces can warp if they have been improperly stored or exposed to moisture. Give the plywood some time and see if it flattens itself. How to fix other warped wood items.

You can flatten them again with hot water and a warm environment. Wrap your warped wood in two large moist towels and make sure the warped parts are properly covered. Wood warps from exposure to moisture which curves plywood or boards for sub flooring or framing a home. For your convenience here are some ideas on how to fix other common warped wood items.

At the same time moisture is being absorbed into the concave side. 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. Now keep your wrapped wood on a flat surface that also will be able to bear the temperature of your iron.

The concave part needs to face downwards. I use a sponge or sprayer to wet the concave side of the plywood hot water works best. It s much more likely to stay flat. However last year i kept getting 3 4 maple both unfinished and pre finished that would warp 1 over 4.