Revisions log for Answer #846

Screw in self-tapping screws at a distance of 30 cm like lighthouses. Then cut the plywood into 50*50 or 60*60 pieces. A whole sheet will swell 100%.

Apply the plywood glue to the bottom with a padded spatula. Drill holes for the screws on the top of the plywood (25 cm apart) to hide the screw head in the plywood. Self-tapping screws should preferably be galvanized. After 2 days, when the plywood dries, take the sander for plywood and sand 2-3 times, sandpaper grit 40-60-80. The pallet is properly aligned. It is better to use 2 layers of plywood.

P. S. Plywood should be laid with a joint of 5 mm without glue.