Durable 36 Multi T-Tracks. Transform Your Woodworking Projects with Versatile Aluminum Extrusions! One (1) 36 inch, 2-1/4 High multi-t-track for woodworking. One (1) 36 inch, 3 High multi-t-track for woodworking. These T-slot tracks are spaced 3/4″ apart and 3/4″ thick, designed to work seamlessly with major accessory fasteners – 1/4” T-bolts, 1/4” Hex bolts, and …