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Carbon fibre rod sizes: round 0.28 to 12 mm, square 4 to 10 mm

What diameters do solid carbon fibre rods come in? · Standard part · basis: Maker's product listings (Easy Composites carbon fibre rod)

Also called: carbon fiber rod sizes, solid carbon rod diameter, carbon pushrod, square carbon rod, 1mm carbon rod, 2mm carbon rod

Exact dimensions. True size, with no printing tolerance added.

sizes: 21 in table

Notes

Solid pultruded carbon rod as listed: round 0.28 to 12 mm, square 4, 5, 6, 8 and 10 mm, and a 3 mm half round. Lengths 1000 mm, most also 2000 mm (0.28 mm and the half round 1000 mm only).
No file: a solid rod is a plain cylinder or bar; the diameter is the design number (bore it into your part at true size and add your own fit).

Carbon fibre rod sizes: round 0.28 to 12 mm, square 4 to 10 mm size chart

section	size mm
round	0.28
round	0.5
round	0.8
round	1
round	1.2
round	1.5
round	2
round	2.5
round	3
round	4
round	5
round	6
round	8
round	10
round	12
square	4 × 4
square	5 × 5
square	6 × 6
square	8 × 8
square	10 × 10
half round	3 (diameter)

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Easy Composites	Carbon fibre rod (category: diameter in each title)	web	Publisher's page; dimensions are facts
Easy Composites	Technical datasheet: carbon fibre pultrusions (tube, rod, strip, box section sizes)	web	Publisher's page; dimensions are facts

Xem scan

File coming

No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.

Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=carbon-fibre-rod-sizes

Schematic, not to scale.

Fits with

Free

Carbon fibre tube sizes: pultruded and roll-wrapped, 0.7 to 60 mm OD, isometric render of a generated part

Carbon fibre tube sizes: pultruded and roll-wrapped, 0.7 to 60 mm OD42 sizes★ 28 files Free

Carbon fibre square tube (box section) sizes, 4 to 20 mm5 sizes★ sheet Free

Carbon fibre strip sizes: 3 × 0.5 to 12 × 2 mm7 sizes★ sheet Free

Music wire diameters (ASTM A228): .015 to .250 in14 sizes★ sheet

Questions

What is the thinnest carbon rod?

0.28 mm in this maker's list; the next sizes are 0.5, 0.8 and 1 mm.