Carbon Fiber Tube Sizes Chart — OD / ID / Wall Selector

How to Pick a Tube Size in 30 Seconds

Type your target OD (and ID, if known) above the table and this carbon fiber tube sizes chart filters 20 retail stock specs and highlights the closest match. Stock range covers OD 10–60 mm with 1–2 mm walls — the sweet spot for drones, automation, sports, and marine applications. Relationship to remember: wall = (OD − ID) ÷ 2.

Sizing Logic Engineers Actually Use

Step 1: fix OD from your assembly (bearings, clamps, inserts). Step 2: choose wall for load — 1 mm suffices for light covers and arms; 2 mm handles structural spans and threaded inserts; above 3 mm goes custom. Step 3: check stiffness with our deflection calculator and weight with our weight calculator. If no stock row fits, custom tooling covers 10,000+ existing molds — most “custom” sizes already exist and ship with zero tooling fee.

Stock vs Custom Lead Times

Stock specs typically cut and ship in 3–5 days; custom diameters run 10–15 days including layup and cure. Full range with pricing sits on our product page; send drawings or target dimensions to get a 12-hour quote.

Frequently Asked Questions

What is the most popular carbon tube size?
25–30 mm OD × 2 mm wall — the default for drone arms, tripod legs, and robot links. We hold deep stock in 25 mm and 30 mm (retail OD range 10–60 mm, integer-mm sizes — see the chart above).

Can you make square or rectangular sizes?
Yes — square, rectangular, oval, and airfoil profiles all run on existing tooling. See custom profiles.

What is the largest tube you can make?
Roll-wrapped up to 200 mm OD, filament-wound to 300 mm+. Beyond that we join sections with bonded ferrules.

Carbon vs Aluminium Size Equivalents

A frequent question: what carbon size replaces my aluminium tube? Start with the same OD (so clamps and inserts still fit), then drop one wall step — e.g. 30×2 mm aluminium becomes 30×1.5 mm carbon at roughly equal bending stiffness and ~45% less weight. Verify with our deflection calculator before committing, and confirm final grams with the weight calculator. Mixed-unit BOMs? Run them through our mm-to-inch converter first.

Ordering Cut Lengths & Tolerances

Stock tubes ship in 1 m and 2 m sticks; cut-to-length tolerance is plus-or-minus 0.5 mm standard, plus-or-minus 0.2 mm precision on request. Ends are square-cut and deburred; optional chamfer, drilled holes, bonded inserts, and CNC notches are handled in-house. If your size is missing from the chart, custom diameters (10,000+ molds, usually zero tooling fee) or the full product range are one click away — send dimensions for a 12-hour quote.