{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "en-10056-unequal-angles",
 "name": "Unequal angles (EN 10056-1): L 100x50x8, L 150x100x10, L 30x20x3 to L 200x150x15 dimensions + STEP/STL",
 "kind": "standard",
 "category": "Hardware",
 "group": "Framing",
 "year": null,
 "question": "What are the dimensions of L 100x50x8 (root radius, toe radius)?",
 "tags": [
  "steel",
  "angle",
  "en 10056",
  "l angle",
  "european angle",
  "structural steel"
 ],
 "aliases": [
  "l 100x50x8",
  "l100x50x8",
  "l 100x50x8 dimensions",
  "l 150x100x10",
  "l 75x50x6",
  "l 60x40x5",
  "l 80x40x6",
  "l 200x100x12",
  "l 30x20x3",
  "unequal angle dimensions mm",
  "en 10056 unequal angle",
  "unequal angle step file"
 ],
 "overall_mm": {
  "length": 100,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 17,
 "url": "https://xemstudio.com/objects/en-10056-unequal-angles/",
 "sheet_txt": "https://xemstudio.com/objects/en-10056-unequal-angles/sheet.txt",
 "sheet": {
  "basis": "EN 10056-1 table values (r1, r2, t, area) as reproduced by Roymech and British Steel",
  "overall_mm": {
   "length": 100,
   "width": null,
   "height": null
  },
  "notes": [
   "Unequal leg hot-rolled angles to EN 10056-1: L 100x50x8 has legs of the sizes shown and a thickness t in mm. Each size has a root radius r1 and a toe radius r2 (about r1/2) printed in the standard's table.",
   "r1 and r2 are from Roymech's reproduction of the EN 10056-1 table (checked against British Steel's datasheet for 120 to 200 mm); the standard itself is paywalled. r2 is drawn on the inner corner at the end of each leg only; the drawn area matches the published area within 2 % on every drawn size, which confirms that placement.",
   "Files are 100 mm long extrusions along X with the heel at the origin: leg a along +y, leg b along +z.",
   "17 of the 46 sizes have files; all sizes are in the table."
  ],
  "table": {
   "columns": [
    "size (mm)",
    "mass (kg/m)",
    "leg a (mm)",
    "leg b (mm)",
    "t (mm)",
    "r1 (mm)",
    "r2 (mm)",
    "area (cm2)"
   ],
   "rows": [
    [
     "200x150x15",
     39.6,
     200,
     150,
     15,
     15,
     7.5,
     50.5
    ],
    [
     "200x150x12",
     32,
     200,
     150,
     12,
     15,
     7.5,
     40.8
    ],
    [
     "200x100x15",
     33.7,
     200,
     100,
     15,
     15,
     7.5,
     43
    ],
    [
     "200x100x12",
     27.3,
     200,
     100,
     12,
     15,
     7.5,
     34.8
    ],
    [
     "200x100x10",
     23,
     200,
     100,
     10,
     15,
     7.5,
     29.2
    ],
    [
     "150x100x12",
     22.5,
     150,
     100,
     12,
     12,
     6,
     28.7
    ],
    [
     "150x100x10",
     19,
     150,
     100,
     10,
     12,
     6,
     24.2
    ],
    [
     "150x90x15",
     26.6,
     150,
     90,
     15,
     12,
     6,
     33.9
    ],
    [
     "150x90x12",
     21.6,
     150,
     90,
     12,
     12,
     6,
     27.5
    ],
    [
     "150x90x10",
     18.2,
     150,
     90,
     10,
     12,
     6,
     23.2
    ],
    [
     "150x75x15",
     24.8,
     150,
     75,
     15,
     11,
     5.5,
     31.6
    ],
    [
     "150x75x12",
     20.2,
     150,
     75,
     12,
     11,
     5.5,
     25.7
    ],
    [
     "150x75x10",
     17,
     150,
     75,
     10,
     11,
     5.5,
     21.6
    ],
    [
     "150x75x9",
     15.4,
     150,
     75,
     9,
     12,
     6,
     19.6
    ],
    [
     "135x65x10",
     15,
     135,
     65,
     10,
     11,
     5.5,
     19.1
    ],
    [
     "135x65x8",
     12.2,
     135,
     65,
     8,
     11,
     5.5,
     15.5
    ],
    [
     "125x75x12",
     17.8,
     125,
     75,
     12,
     11,
     5.5,
     22.7
    ],
    [
     "125x75x10",
     15,
     125,
     75,
     10,
     11,
     5.5,
     19.1
    ],
    [
     "125x75x8",
     12.2,
     125,
     75,
     8,
     11,
     5.5,
     15.5
    ],
    [
     "120x80x12",
     17.8,
     120,
     80,
     12,
     11,
     5.5,
     22.7
    ],
    [
     "120x80x10",
     15,
     120,
     80,
     10,
     11,
     5.5,
     19.1
    ],
    [
     "120x80x8",
     12.2,
     120,
     80,
     8,
     11,
     5.5,
     15.5
    ],
    [
     "100x75x12",
     15.4,
     100,
     75,
     12,
     10,
     5,
     19.7
    ],
    [
     "100x75x10",
     13,
     100,
     75,
     10,
     10,
     5,
     16.6
    ],
    [
     "100x75x8",
     10.6,
     100,
     75,
     8,
     10,
     5,
     13.5
    ],
    [
     "100x65x10",
     12.3,
     100,
     65,
     10,
     10,
     5,
     15.6
    ],
    [
     "100x65x8",
     9.94,
     100,
     65,
     8,
     10,
     5,
     12.7
    ],
    [
     "100x65x7",
     8.77,
     100,
     65,
     7,
     10,
     5,
     11.2
    ],
    [
     "100x50x8",
     8.97,
     100,
     50,
     8,
     8,
     4,
     11.4
    ],
    [
     "100x50x6",
     6.84,
     100,
     50,
     6,
     8,
     4,
     8.71
    ],
    [
     "80x60x7",
     7.36,
     80,
     60,
     7,
     8,
     4,
     9.38
    ],
    [
     "80x40x8",
     7.07,
     80,
     40,
     8,
     7,
     3.5,
     9.01
    ],
    [
     "80x40x6",
     5.41,
     80,
     40,
     6,
     7,
     3.5,
     6.89
    ],
    [
     "75x50x8",
     7.39,
     75,
     50,
     8,
     7,
     3.5,
     9.41
    ],
    [
     "75x50x6",
     5.65,
     75,
     50,
     6,
     7,
     3.5,
     7.19
    ],
    [
     "70x50x6",
     5.41,
     70,
     50,
     6,
     7,
     3.5,
     6.89
    ],
    [
     "65x50x5",
     4.35,
     65,
     50,
     5,
     6,
     3,
     5.54
    ],
    [
     "60x40x6",
     4.46,
     60,
     40,
     6,
     6,
     3,
     5.68
    ],
    [
     "60x40x5",
     3.76,
     60,
     40,
     5,
     6,
     3,
     4.79
    ],
    [
     "60x30x5",
     3.37,
     60,
     30,
     5,
     6,
     3,
     4.29
    ],
    [
     "50x30x5",
     2.96,
     50,
     30,
     5,
     5,
     2.5,
     3.78
    ],
    [
     "45x30x4",
     2.25,
     45,
     30,
     4,
     4.5,
     2.25,
     2.86
    ],
    [
     "40x25x4",
     1.93,
     40,
     25,
     4,
     4,
     2,
     2.46
    ],
    [
     "40x20x4",
     1.77,
     40,
     20,
     4,
     4,
     2,
     2.26
    ],
    [
     "30x20x4",
     1.46,
     30,
     20,
     4,
     4,
     2,
     1.86
    ],
    [
     "30x20x3",
     1.12,
     30,
     20,
     3,
     4,
     2,
     1.43
    ]
   ]
  }
 },
 "sheet_text": "Unequal angles (EN 10056-1): L 100x50x8, L 150x100x10, L 30x20x3 to L 200x150x15 dimensions + STEP/STL — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/en-10056-unequal-angles/  (sheet CC BY 4.0)\nBasis: EN 10056-1 table values (r1, r2, t, area) as reproduced by Roymech and British Steel\nCatalog version: 2026-10-20\n\nOverall (mm): length 100.0\n- Unequal leg hot-rolled angles to EN 10056-1: L 100x50x8 has legs of the sizes shown and a thickness t in mm. Each size has a root radius r1 and a toe radius r2 (about r1/2) printed in the standard's table.\n- r1 and r2 are from Roymech's reproduction of the EN 10056-1 table (checked against British Steel's datasheet for 120 to 200 mm); the standard itself is paywalled. r2 is drawn on the inner corner at the end of each leg only; the drawn area matches the published area within 2 % on every drawn size, which confirms that placement.\n- Files are 100 mm long extrusions along X with the heel at the origin: leg a along +y, leg b along +z.\n- 17 of the 46 sizes have files; all sizes are in the table.\n\nsize (mm)  mass (kg/m)  leg a (mm)  leg b (mm)  t (mm)  r1 (mm)  r2 (mm)  area (cm2)\n200x150x15  39.6  200.0  150.0  15.0  15.0  7.5  50.5\n200x150x12  32.0  200.0  150.0  12.0  15.0  7.5  40.8\n200x100x15  33.7  200.0  100.0  15.0  15.0  7.5  43.0\n200x100x12  27.3  200.0  100.0  12.0  15.0  7.5  34.8\n200x100x10  23.0  200.0  100.0  10.0  15.0  7.5  29.2\n150x100x12  22.5  150.0  100.0  12.0  12.0  6.0  28.7\n150x100x10  19.0  150.0  100.0  10.0  12.0  6.0  24.2\n150x90x15  26.6  150.0  90.0  15.0  12.0  6.0  33.9\n150x90x12  21.6  150.0  90.0  12.0  12.0  6.0  27.5\n150x90x10  18.2  150.0  90.0  10.0  12.0  6.0  23.2\n150x75x15  24.8  150.0  75.0  15.0  11.0  5.5  31.6\n150x75x12  20.2  150.0  75.0  12.0  11.0  5.5  25.7\n150x75x10  17.0  150.0  75.0  10.0  11.0  5.5  21.6\n150x75x9  15.4  150.0  75.0  9.0  12.0  6.0  19.6\n135x65x10  15.0  135.0  65.0  10.0  11.0  5.5  19.1\n135x65x8  12.2  135.0  65.0  8.0  11.0  5.5  15.5\n125x75x12  17.8  125.0  75.0  12.0  11.0  5.5  22.7\n125x75x10  15.0  125.0  75.0  10.0  11.0  5.5  19.1\n125x75x8  12.2  125.0  75.0  8.0  11.0  5.5  15.5\n120x80x12  17.8  120.0  80.0  12.0  11.0  5.5  22.7\n120x80x10  15.0  120.0  80.0  10.0  11.0  5.5  19.1\n120x80x8  12.2  120.0  80.0  8.0  11.0  5.5  15.5\n100x75x12  15.4  100.0  75.0  12.0  10.0  5.0  19.7\n100x75x10  13.0  100.0  75.0  10.0  10.0  5.0  16.6\n100x75x8  10.6  100.0  75.0  8.0  10.0  5.0  13.5\n100x65x10  12.3  100.0  65.0  10.0  10.0  5.0  15.6\n100x65x8  9.94  100.0  65.0  8.0  10.0  5.0  12.7\n100x65x7  8.77  100.0  65.0  7.0  10.0  5.0  11.2\n100x50x8  8.97  100.0  50.0  8.0  8.0  4.0  11.4\n100x50x6  6.84  100.0  50.0  6.0  8.0  4.0  8.71\n80x60x7  7.36  80.0  60.0  7.0  8.0  4.0  9.38\n80x40x8  7.07  80.0  40.0  8.0  7.0  3.5  9.01\n80x40x6  5.41  80.0  40.0  6.0  7.0  3.5  6.89\n75x50x8  7.39  75.0  50.0  8.0  7.0  3.5  9.41\n75x50x6  5.65  75.0  50.0  6.0  7.0  3.5  7.19\n70x50x6  5.41  70.0  50.0  6.0  7.0  3.5  6.89\n65x50x5  4.35  65.0  50.0  5.0  6.0  3.0  5.54\n60x40x6  4.46  60.0  40.0  6.0  6.0  3.0  5.68\n60x40x5  3.76  60.0  40.0  5.0  6.0  3.0  4.79\n60x30x5  3.37  60.0  30.0  5.0  6.0  3.0  4.29\n50x30x5  2.96  50.0  30.0  5.0  5.0  2.5  3.78\n45x30x4  2.25  45.0  30.0  4.0  4.5  2.25  2.86\n40x25x4  1.93  40.0  25.0  4.0  4.0  2.0  2.46\n40x20x4  1.77  40.0  20.0  4.0  4.0  2.0  2.26\n30x20x4  1.46  30.0  20.0  4.0  4.0  2.0  1.86\n30x20x3  1.12  30.0  20.0  3.0  4.0  2.0  1.43\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Roymech: Unequal leg angles to EN 10056-1: size, r1, r2, mass, area — web — Publisher's page; dimensions are facts — https://roymech.org/Useful_Tables/Sections/U_AngleA_dim_prop.html\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 17 parts): https://xemstudio.com/files/hardware/en-10056-unequal-angles/index.json\nAPI: https://xemstudio.com/api/geometry?object=en-10056-unequal-angles\n",
 "sources": [
  {
   "publisher": "Roymech",
   "title": "Unequal leg angles to EN 10056-1: size, r1, r2, mass, area",
   "url": "https://roymech.org/Useful_Tables/Sections/U_AngleA_dim_prop.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
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  "tolerance_mm": null
 },
 "related": [
  "aisc-l-angles",
  "en-10056-equal-angles",
  "aluminum-angles"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "What is the toe radius of L 100x50x8?",
   "a": "r2 is printed in the EN 10056-1 table; see the table on this page."
  }
 ],
 "files_license": null,
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-30x20x3-100mm.stl",
   "note": "L 30 x 20 x 3: legs 30 and 20 mm, thickness 3 mm, root radius r1 4 mm, toe radius r2 2 mm, 100 mm long"
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   "note": "L 40 x 20 x 4: legs 40 and 20 mm, thickness 4 mm, root radius r1 4 mm, toe radius r2 2 mm, 100 mm long"
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   "note": "L 75 x 50 x 6: legs 75 and 50 mm, thickness 6 mm, root radius r1 7 mm, toe radius r2 3.5 mm, 100 mm long"
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   "step": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-100x50x8-100mm.step",
   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-100x50x8-100mm.stl",
   "note": "L 100 x 50 x 8: legs 100 and 50 mm, thickness 8 mm, root radius r1 8 mm, toe radius r2 4 mm, 100 mm long"
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-100x65x8-100mm.stl",
   "note": "L 100 x 65 x 8: legs 100 and 65 mm, thickness 8 mm, root radius r1 10 mm, toe radius r2 5 mm, 100 mm long"
  },
  {
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-100x75x8-100mm.stl",
   "note": "L 100 x 75 x 8: legs 100 and 75 mm, thickness 8 mm, root radius r1 10 mm, toe radius r2 5 mm, 100 mm long"
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-120x80x10-100mm.stl",
   "note": "L 120 x 80 x 10: legs 120 and 80 mm, thickness 10 mm, root radius r1 11 mm, toe radius r2 5.5 mm, 100 mm long"
  },
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-150x75x10-100mm.stl",
   "note": "L 150 x 75 x 10: legs 150 and 75 mm, thickness 10 mm, root radius r1 11 mm, toe radius r2 5.5 mm, 100 mm long"
  },
  {
   "file": "l-150x100x10-100mm",
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-150x100x10-100mm.stl",
   "note": "L 150 x 100 x 10: legs 150 and 100 mm, thickness 10 mm, root radius r1 12 mm, toe radius r2 6 mm, 100 mm long"
  },
  {
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-200x100x12-100mm.stl",
   "note": "L 200 x 100 x 12: legs 200 and 100 mm, thickness 12 mm, root radius r1 15 mm, toe radius r2 7.5 mm, 100 mm long"
  },
  {
   "file": "l-200x150x15-100mm",
   "formats": [
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/en-10056-unequal-angles/l-200x150x15-100mm.stl",
   "note": "L 200 x 150 x 15: legs 200 and 150 mm, thickness 15 mm, root radius r1 15 mm, toe radius r2 7.5 mm, 100 mm long"
  }
 ],
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}