Carbon Fiber & Materials
Carbon Fiber Tube Sizes: Choosing Diameter and Wall Thickness
How tube size affects stiffness for booms, arms and rigs.
· 3 min read
Key takeaways
- Diameter matters more than wall thickness for stiffness.
- Roll-wrapped tubes are stiffer than pultruded.
- A mixed set covers most projects.
Diameter
Doubling diameter massively increases bending stiffness.
Construction
Roll-wrapped tubes have fibres in multiple directions, resisting twist and crushing.
Common uses
8–12mm for antennas and small booms, 16–25mm for camera rigs and drone arms.
Frequently asked questions
Products mentioned in this article
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