Things You'll Need
Instructions
Take the trucks and wheels off of your skateboard deck with a Phillips-head screwdriver and adjustable wrench.
Submerge the skateboard deck in the shallow five-gallon container and fill it with water. Let the deck soak in the container overnight.
Remove the skateboard deck from the container of water and place the concrete block over top of the warped section. Let the concrete block remain, until the deck has completely dried.
Reinstall the trucks and wheels.