EMT conduit sizes: 1/2 to 2 in OD and wall (ANSI C80.3) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/emt-conduit/  (CC BY 4.0)
Basis: ANSI C80.3 electrical metallic tubing: outside diameter and nominal wall
Catalog version: 2026-10-20

Sizes: see table below
- 10 ft sticks and 12, 24, 36 in cuts; couplings and fittings not drawn.

trade_size  od_in  wall_in  od_mm  id_mm
1/2  0.706  0.042  17.93  15.8
3/4  0.922  0.049  23.42  20.93
1  1.163  0.057  29.54  26.64
1-1/4  1.51  0.065  38.35  35.05
1-1/2  1.74  0.065  44.2  40.89
2  2.197  0.065  55.8  52.5

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- NEMA: ANSI C80.3 Steel electrical metallic tubing (EMT) — standard — NEMA; dimensions are facts [verify license at link] — https://www.nema.org/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 24 parts): https://xemstudio.com/files/hardware/emt-conduit/index.json
API: https://xemstudio.com/api/geometry?object=emt-conduit