Rockwell Jawhorse RK9109 Plywood Jaw Accessory Attachment The plywood jaw adapts the jawhorse for large sheets good up to 52" wide Outriggers are required for sheets up to 4' wide For sheets wider than 4' outriggers with support legs are needed The Plywood Jaw includes brackets to make these supports simply with basic 2x4 lumber Accessory for Jawhorse