UPN channels (DIN 1026): UPN 50 to UPN 300 dimensions (h, b, tw, tf, r1, r2) + STEP/STL — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/din-upn-channels/  (sheet CC BY 4.0)
Basis: Kocaer Steel UPN table (DIN 1026-1); 8 % inner flange slope per Project Materials
Catalog version: 2026-10-20

Overall (mm): length 100.0
- UPN is the European taper-flange channel (DIN 1026-1): the inner flange faces slope about 8 %, so tf is the nominal flange thickness at the middle of the projection. UPN 200 is 200 mm deep and 75 mm wide.
- r1 is the root radius (web to flange), r2 the radius on the inner corner of each flange tip. Values are from Kocaer Steel's DIN 1026-1 table; the slope is quoted by Project Materials (approximately 8 %). Both are published pages by suppliers, not the standard, which is paywalled.
- Files are 100 mm long extrusions along X; the section is in the YZ plane with the web back at y = 0 and the flanges toward +y. Drawn area is within 3 % of the published area on every size.
- UPN 320 to 400 are not drawn: the radii for them were not in a table we could read. UPE (parallel-flange) channels are on en-upe-channels.

section  mass (kg/m)  h (mm)  b (mm)  tw (mm)  tf (mm)  r1 (mm)  r2 (mm)  area (cm2)
UPN 50  5.6  50.0  38.0  5.0  7.0  7.0  3.5  7.1
UPN 65  7.1  65.0  42.0  5.5  7.5  7.5  4.0  9.0
UPN 80  8.6  80.0  45.0  6.0  8.0  8.0  4.0  11.0
UPN 100  10.6  100.0  50.0  6.0  8.5  8.5  4.5  13.5
UPN 120  13.4  120.0  55.0  7.0  9.0  9.0  4.5  17.0
UPN 140  16.0  140.0  60.0  7.0  10.0  10.0  5.0  20.4
UPN 160  18.8  160.0  65.0  7.5  10.5  10.5  5.5  24.0
UPN 180  22.0  180.0  70.0  8.0  11.0  11.0  5.5  28.0
UPN 200  25.3  200.0  75.0  8.5  11.5  11.5  6.0  32.2
UPN 220  29.4  220.0  80.0  9.0  12.5  12.5  6.5  37.4
UPN 240  33.2  240.0  85.0  9.5  13.0  13.0  6.5  42.3
UPN 260  37.9  260.0  90.0  10.0  14.0  14.0  7.0  48.3
UPN 280  41.8  280.0  95.0  10.0  15.0  15.0  7.5  53.3
UPN 300  46.2  300.0  100.0  10.0  16.0  16.0  8.0  58.8

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Kocaer Steel: UPN channels (DIN 1026-1): h, b, tw, tf, r1, r2, mass, area — web — Publisher's page; dimensions are facts — https://kocaersteel.com/uploads/2025/02/channels-upn.pdf
- Project Materials: UPN channel dimensions: tapered flanges with an approximately 8 % inner slope — web — Publisher's page; dimensions are facts — https://blog.projectmaterials.com/quick-answers/steel/upn-channel-dimensions-weight/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 14 parts): https://xemstudio.com/files/hardware/din-upn-channels/index.json
API: https://xemstudio.com/api/geometry?object=din-upn-channels