Goodwinds Composites’ square carbon tubes combine a square exterior with a round internal bore, providing lightweight reinforcement for assemblies that require a square profile. Manufactured by pultrusion with longitudinally oriented carbon fibers, the tubes offer high stiffness along their length.
The standard range comprises 0.125 by 0.125-inch and 0.250 by 0.250-inch external cross sections, both supplied in 48-inch lengths. Their circular bores measure 0.076 and 0.172 inches in diameter respectively. Custom cutting is available, and customers can discuss larger orders and component requirements directly with a composites engineer.




