Aluminum I-beams (Aluminum Association standard): 3 x 1.64 to 12 x 14.29 dimensions + STEP/STL — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/aluminum-i-beams/ (sheet CC BY 4.0) Basis: Aluminum Association standard I-beams: depth, width, flange, web, fillet radius, area Catalog version: 2026-10-20 Overall (mm): length 101.6 - Aluminum Association standard I-beams are named depth x weight: 6 x 4.03 is a 6 in deep beam weighing 4.03 lb per foot. Flanges are parallel and constant thickness. - Dimensions and the printed fillet radius R at the four web-flange corners are from the Engineers Edge table of standard aluminum I-beams (the page names no author; the sizes and areas agree with the Aluminum Association series). Flange tips are drawn square. Drawn area is within 5 % of the printed area on every size. - Files are 4 in (101.6 mm) long along X, centred on y = 0, z = 0 on the bottom face. Designations round the printed weight to two decimals. designation lb/ft depth (in) width (in) flange (in) web (in) fillet R (in) area (in2) depth (mm) width (mm) 3 x 1.64 1.637 3.0 2.5 0.2 0.13 0.25 1.392 76.2 63.5 3 x 2.03 2.03 3.0 2.5 0.26 0.15 0.25 1.726 76.2 63.5 4 x 2.31 2.311 4.0 3.0 0.23 0.15 0.25 1.965 101.6 76.2 4 x 2.79 2.793 4.0 3.0 0.29 0.17 0.25 2.375 101.6 76.2 5 x 3.70 3.7 5.0 3.5 0.32 0.19 0.3 3.146 127.0 88.9 6 x 4.03 4.03 6.0 4.0 0.29 0.19 0.3 3.427 152.4 101.6 6 x 4.69 4.692 6.0 4.0 0.35 0.21 0.3 3.99 152.4 101.6 7 x 5.80 5.8 7.0 4.5 0.38 0.23 0.3 4.932 177.8 114.3 8 x 6.18 6.181 8.0 5.0 0.35 0.23 0.3 5.256 203.2 127.0 8 x 7.02 7.023 8.0 5.0 0.41 0.25 0.3 5.972 203.2 127.0 9 x 8.36 8.361 9.0 5.5 0.44 0.27 0.3 7.11 228.6 139.7 10 x 8.65 8.646 10.0 6.0 0.41 0.25 0.4 7.352 254.0 152.4 10 x 10.29 10.286 10.0 6.0 0.5 0.29 0.4 8.747 254.0 152.4 12 x 11.67 11.672 12.0 7.0 0.47 0.29 0.4 9.925 304.8 177.8 12 x 14.29 14.292 12.0 7.0 0.62 0.31 0.4 12.153 304.8 177.8 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Engineers Edge: Standard Aluminum I-Beam size table: depth, width, weight, area, flange, web, fillet radius — web — The page names no author; the sizes match the Aluminum Association standard I-beams and the area check below agrees — https://engineersedge.com/I_beams_aluminum.htm Free files (CC BY 4.0, Xem Studio; STEP + STL, 15 parts): https://xemstudio.com/files/hardware/aluminum-i-beams/index.json API: https://xemstudio.com/api/geometry?object=aluminum-i-beams