Carbon fiber square tubes provide box-section efficiency for lightweight frames, gantries, and fixtures where torsion, buckling, and easy fixturing on flat faces matter. We manufacture square and rectangular profiles with sharp, consistent corners, smooth surfaces, and stable dimensional tolerances for repeatable assembly. Choose roll-wrapped layups for balanced torsion/axial performance, or specify hybrid UD/fabric schedules for targeted stiffness. Common applications include machine frames, pick-and-place rails, CNC accessories, camera cages, and robotic end-effectors. Upload a drawing to get design guidance and pricing.