Library › Hardware › Aluminum I-beams (Aluminum Association standard): 3 x 1.64 to 12 x…

Aluminum I-beam 10 x 8.65

Aluminum I-beam 10 x 8.65: depth 10 in, flange width 6 in, flange 0.41 in, web 0.25 in, fillet R 0.4 in, 4 in long

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

designation10 x 8.65
lb/ft8.646
depth (in)10.0
width (in)6.0
flange (in)0.41
web (in)0.25
fillet R (in)0.4
area (in2)7.352
depth (mm)254.0
width (mm)152.4
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 →

From the full sheet

Aluminum I-beams (Aluminum Association standard): 3 x 1.64 to 12 x 14.29 dimensions + STEP/STL: every size, notes, mating features and sources. What are the dimensions of an aluminum 6 x 4.03 I-beam?

Other sizes