# UPN channels (DIN 1026): UPN 50 to UPN 300 dimensions (h, b, tw, tf, r1, r2) + STEP/STL

> What are the dimensions of UPN 100 channel?

- Category: Hardware › Framing
- Kind: Standard part
- Basis: Kocaer Steel UPN table (DIN 1026-1); 8 % inner flange slope per Project Materials
- Page: https://xemstudio.com/objects/din-upn-channels/ · JSON: https://xemstudio.com/api/geometry?object=din-upn-channels · Plain text: https://xemstudio.com/objects/din-upn-channels/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length |
|---|
| 100.0 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- 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.

## Sizes

| 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 |

## Where the files are

- Kocaer Steel: [UPN channels (DIN 1026-1): h, b, tw, tf, r1, r2, mass, area](https://kocaersteel.com/uploads/2025/02/channels-upn.pdf) — web — Publisher's page; dimensions are facts
- Project Materials: [UPN channel dimensions: tapered flanges with an approximately 8 % inner slope](https://blog.projectmaterials.com/quick-answers/steel/upn-channel-dimensions-weight/) — web — Publisher's page; dimensions are facts

## Free STEP/STL (14 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/din-upn-channels/index.json

- upn50-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn50-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn50-100mm.stl) — UPN 50: h 50 mm, b 38 mm, web 5 mm, mean flange 7 mm, flanges sloped 8 %, r1 7 mm, r2 3.5 mm, 100 mm long
- upn65-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn65-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn65-100mm.stl) — UPN 65: h 65 mm, b 42 mm, web 5.5 mm, mean flange 7.5 mm, flanges sloped 8 %, r1 7.5 mm, r2 4 mm, 100 mm long
- upn80-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn80-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn80-100mm.stl) — UPN 80: h 80 mm, b 45 mm, web 6 mm, mean flange 8 mm, flanges sloped 8 %, r1 8 mm, r2 4 mm, 100 mm long
- upn100-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn100-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn100-100mm.stl) — UPN 100: h 100 mm, b 50 mm, web 6 mm, mean flange 8.5 mm, flanges sloped 8 %, r1 8.5 mm, r2 4.5 mm, 100 mm long
- upn120-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn120-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn120-100mm.stl) — UPN 120: h 120 mm, b 55 mm, web 7 mm, mean flange 9 mm, flanges sloped 8 %, r1 9 mm, r2 4.5 mm, 100 mm long
- upn140-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn140-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn140-100mm.stl) — UPN 140: h 140 mm, b 60 mm, web 7 mm, mean flange 10 mm, flanges sloped 8 %, r1 10 mm, r2 5 mm, 100 mm long
- upn160-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn160-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn160-100mm.stl) — UPN 160: h 160 mm, b 65 mm, web 7.5 mm, mean flange 10.5 mm, flanges sloped 8 %, r1 10.5 mm, r2 5.5 mm, 100 mm long
- upn180-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn180-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn180-100mm.stl) — UPN 180: h 180 mm, b 70 mm, web 8 mm, mean flange 11 mm, flanges sloped 8 %, r1 11 mm, r2 5.5 mm, 100 mm long
- upn200-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn200-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn200-100mm.stl) — UPN 200: h 200 mm, b 75 mm, web 8.5 mm, mean flange 11.5 mm, flanges sloped 8 %, r1 11.5 mm, r2 6 mm, 100 mm long
- upn220-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn220-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn220-100mm.stl) — UPN 220: h 220 mm, b 80 mm, web 9 mm, mean flange 12.5 mm, flanges sloped 8 %, r1 12.5 mm, r2 6.5 mm, 100 mm long
- upn240-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn240-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn240-100mm.stl) — UPN 240: h 240 mm, b 85 mm, web 9.5 mm, mean flange 13 mm, flanges sloped 8 %, r1 13 mm, r2 6.5 mm, 100 mm long
- upn260-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn260-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn260-100mm.stl) — UPN 260: h 260 mm, b 90 mm, web 10 mm, mean flange 14 mm, flanges sloped 8 %, r1 14 mm, r2 7 mm, 100 mm long
- upn280-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn280-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn280-100mm.stl) — UPN 280: h 280 mm, b 95 mm, web 10 mm, mean flange 15 mm, flanges sloped 8 %, r1 15 mm, r2 7.5 mm, 100 mm long
- upn300-100mm: [STEP](https://xemstudio.com/files/hardware/din-upn-channels/upn300-100mm.step) · [STL](https://xemstudio.com/files/hardware/din-upn-channels/upn300-100mm.stl) — UPN 300: h 300 mm, b 100 mm, web 10 mm, mean flange 16 mm, flanges sloped 8 %, r1 16 mm, r2 8 mm, 100 mm long

## Questions

**What is the web thickness of UPN 100?**

6 mm; h 100 mm, b 50 mm, flange 8.5 mm, r1 8.5 mm, r2 4.5 mm.

## Fits with

- [UPE channels (parallel flange): UPE 80 to UPE 400 dimensions (h, b, tw, tf, r) + STEP/STL](https://xemstudio.com/objects/en-upe-channels/)
- [C channels (AISC American Standard channels): C6x13, C8x11.5, C12x20.7 dimensions + STEP/STL](https://xemstudio.com/objects/aisc-c-channels/)
- [IPE beams: IPE 80 to IPE 600 dimensions (h, b, tw, tf, r) + STEP/STL](https://xemstudio.com/objects/ipe-beams-en/)