When working with plywood, it is important to make sure that the piece is square. This can be done in a few different ways.
One way to check if a piece of plywood is square is to measure the diagonals. If the two measurements are equal, then the plywood is considered square. Another way to check for squareness is by measuring from corner to corner on opposite sides of the plywood. These measurements should also be equal if the plywood is square.
If the plywood is not currentlysquare, there are a few things that can be done in order to make it so. One option isto use a power planer or jointerto create straight and parallel edges onthe long sides oftheplywood sheet. Once this has been done,the short sides can then betrimmedto create 90 degree angles at each corner usinga table saw or circular saw . Finally,the long and short sides can be brought into alignmentby runninga belt sander along their length until they meet perfectly in the middle .
Once you have checked and double-checked that yourplywoodis now officiallysquare, you can move onto whatever project you had plannedon usingit for!