Clamp panels in two directions at once
Deluxe panel clamps, no. 67164, $100 each Panel clamps have been around for decades—usually made of wood—but always with limitations: They either bow slightly in the middle or fail to apply equal downforce across their length. These Rockler clamps, made of steel, not only squeeze together the boards in your panel, but also force them to remain flat, according to Rockler. They work on panels from to 3" thick and from 10" to 36" wide.
Rockler
800-279-4441, rockler.com