Show Solutions 12" x 12" Hinged Book 12"

A 12-inch hinge book for 12-inch box truss: a hinged junction that lets two truss runs pivot against each other and set at the angle the design calls for, instead of being locked to a fixed corner block. That is how folding headers, adjustable A-frames, and scenic truss pieces that pack flat and open on site get built. Bolts to standard 12-inch plated box truss, so it drops into an existing inventory without special parts.