Xem Studiomeasured geometry

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

Aluminum I-beam 9 x 8.36

Aluminum I-beam 9 x 8.36: depth 9 in, flange width 5.5 in, flange 0.44 in, web 0.27 in, fillet R 0.3 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

designation9 x 8.36
lb/ft8.361
depth (in)9.0
width (in)5.5
flange (in)0.44
web (in)0.27
fillet R (in)0.3
area (in2)7.11
depth (mm)228.6
width (mm)139.7
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