Xem Studiomeasured geometry

Library › Hardware › Aluminum channels (Aluminum Association standard): C 4 x 1.74, 6 x…

Aluminum channel 5 x 3.09

Aluminum channel 5 x 3.09: depth 5 in, flange width 2.75 in, flange 0.32 in, web 0.19 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

designation5 x 3.09
lb/ft3.09
depth (in)5.0
width (in)2.75
flange (in)0.32
web (in)0.19
fillet R (in)0.3
area (in2)2.63
depth (mm)127.0
width (mm)69.8
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 channels (Aluminum Association standard): C 4 x 1.74, 6 x 2.83, 12 x 8.27 dimensions + STEP/STL: every size, notes, mating features and sources. What are the dimensions of an aluminum 4 x 1.74 channel?

Other sizes