ModTruss Extrusion, a T-slot combined with a structural beam, comes in 3”x3” and 6”x12” sizes. Compatible with all ModTruss products, both sizes feature a continuous length up to 40’, the smaller with four slots and the larger version with 12 slots. The hole size for the T-slot is 0.656”x1.312” (16.67mmx33.34mm) and 10.5mm for a keyway (aka Keder Track or Screw-boss). The smaller version is made from 6061-T6 aluminum, and the larger from 6063-T5 aluminum. Extrusion comes unfinished, but several finishes are available. modtruss.com
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