{
 "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": "steel-square-rectangular-tube-gauge-sizes",
 "name": "Square and rectangular steel tube sizes by gauge (1x1, 1-1/2, 2x1 in; 16, 14, 11 ga) + ASTM A500 corner radius limit, weight per foot",
 "kind": "standard",
 "category": "Hardware",
 "group": "Framing",
 "year": null,
 "question": "What sizes does square steel tube come in (1x1, 1-1/2x1-1/2, 2x2) with 14 gauge, 11 gauge and 1/8 walls, and what is the corner radius?",
 "tags": [
  "steel",
  "hss",
  "square tube",
  "rectangular tube",
  "box section",
  "mechanical tube",
  "astm a500",
  "astm a513",
  "gauge",
  "frame",
  "fixture"
 ],
 "aliases": [
  "square tube",
  "square tubing",
  "square steel tube sizes",
  "steel square tubing dimensions",
  "1x1 square tube",
  "1x1 steel tube",
  "1x1x1/8 square tube",
  "1x1 14 gauge square tube",
  "1 inch square tube wall thickness",
  "1-1/2 square tube",
  "1.5 square tubing",
  "1 1/2 x 1 1/2 square tube",
  "2x2 square tube 11 gauge",
  "2x2x1/8 square tube",
  "2x1 rectangular tube",
  "1x2 steel tube",
  "2x3 rectangular tube",
  "2x4 rectangular tube",
  "3x3 square tube",
  "4x4 square tube",
  "a500 square tube",
  "a500 tube corner radius",
  "astm a500 corner radius",
  "a500 vs a513",
  "hss tube",
  "hss 1x1",
  "box section steel",
  "box tube",
  "steel tube weight per foot",
  "14 gauge square tube dimensions",
  "11 gauge square tube dimensions",
  "16 gauge square tube dimensions",
  "square hollow section",
  "rectangular hollow section",
  "shs",
  "rhs",
  "purlin"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/steel-square-rectangular-tube-gauge-sizes/",
 "sheet_txt": "https://xemstudio.com/objects/steel-square-rectangular-tube-gauge-sizes/sheet.txt",
 "sheet": {
  "basis": "Sugar Steel square tubing chart and Continental Steel rectangular tube listings for size, wall and lb/ft; corner-radius limit from the ASTM A500 text as quoted by Industrial Tube and Chicago Tube; numbers only, no file",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Square and rectangular steel tube under about 2 in is mostly sold by gauge and made as mechanical tube: Industrial Tube Corp. says outside dimensions under 2 in with a wall under 0.120 in are typically ASTM A513, and 2 in and larger with 0.120 in and heavier are typically ASTM A500. So '1x1 A500' and '1-1/2 sq A500' are usually A513 in practice; the geometry and the 3t corner limit below are the same ideas either way.",
   "ASTM A500 corner radius: 'the radius of any outside corner of the section shall not exceed three times the specified wall thickness' (A500 section 10.6, quoted by Industrial Tube, Chicago Tube, Speedy Metals; the Steel Tube Institute article says the same, 3 x t). The wall-thickness tolerance does not apply at corners. There is no nominal radius in A500, so no file is drawn here.",
   "A500 tolerances (Industrial Tube Corp.): outside dimension +/-0.020 in for the largest side 1 to 2-1/2 in, +/-0.025 in over 2-1/2 to 3-1/2 in, +/-0.030 in over 3-1/2 to 5-1/2 in, +/-1 % above that; wall +/-10 %.",
   "Sizes at 2 in and up in the AISC HSS database (HSS2x2x1/8 and heavier, with the true AISC walls) are on aisc-hss-rectangular-square with files; this page lists only what that page does not: sizes under 2 in and gauge walls (16, 14, 11 ga) in squares, plus the rectangular gauge sizes from Continental Steel. Weights are as printed by the distributors; they are nominal and different sources allow for the corner radius differently (gauge walls match a sharp-corner estimate to about 1 %; the heavier walls print up to 13% less, which is the corner allowance).",
   "Gauge walls match what McMaster-Carr lists: its square and rectangular tube pages show wall thicknesses 0.035, 0.049, 1/16, 0.065, 0.083, 0.120, 1/8, 0.188, 1/4, 5/16, 3/8 and 1/2 in, and outside sizes from 3/8 to 8 in. McMaster has the per-part STEP; Xem links it and does not copy it.",
   "Rectangular sizes 2x3, 2x4, 3x4 and so on are on the AISC page. Cold-formed C and Z purlins are not listed: no public standard table exists (each metal-building maker has its own sizes)."
  ],
  "table": {
   "columns": [
    "size (in)",
    "wall name as printed",
    "wall (in)",
    "wall (mm)",
    "outside H (mm)",
    "outside B (mm)",
    "weight (lb/ft)",
    "weight (kg/m)",
    "A500 max outside corner radius 3t (mm)"
   ],
   "rows": [
    [
     "1/2 sq",
     "18 ga",
     "0.049",
     1.24,
     12.7,
     12.7,
     "0.3005",
     0.447,
     3.73
    ],
    [
     "1/2 sq",
     "16 ga",
     "0.065",
     1.65,
     12.7,
     12.7,
     "0.3845",
     0.572,
     4.95
    ],
    [
     "3/4 sq",
     "18 ga",
     "0.049",
     1.24,
     19,
     19,
     "0.4671",
     0.695,
     3.73
    ],
    [
     "3/4 sq",
     "16 ga",
     "0.065",
     1.65,
     19,
     19,
     "0.6055",
     0.901,
     4.95
    ],
    [
     "3/4 sq",
     "14 ga",
     "0.083",
     2.11,
     19,
     19,
     "0.7528",
     1.12,
     6.32
    ],
    [
     "3/4 sq",
     "11 ga",
     "0.12",
     3.05,
     19,
     19,
     "1.028",
     1.53,
     9.14
    ],
    [
     "1 sq",
     "16 ga",
     "0.065",
     1.65,
     25.4,
     25.4,
     "0.826",
     1.229,
     4.95
    ],
    [
     "1 sq",
     "14 ga",
     "0.083",
     2.11,
     25.4,
     25.4,
     "1.035",
     1.54,
     6.32
    ],
    [
     "1 sq",
     "11 ga",
     "0.12",
     3.05,
     25.4,
     25.4,
     "1.44",
     2.143,
     9.14
    ],
    [
     "1-1/4 sq",
     "16 ga",
     "0.065",
     1.65,
     31.8,
     31.8,
     "1.048",
     1.56,
     4.95
    ],
    [
     "1-1/4 sq",
     "14 ga",
     "0.083",
     2.11,
     31.8,
     31.8,
     "1.317",
     1.96,
     6.32
    ],
    [
     "1-1/4 sq",
     "11 ga",
     "0.12",
     3.05,
     31.8,
     31.8,
     "1.844",
     2.744,
     9.14
    ],
    [
     "1-1/4 sq",
     "3/16",
     "0.188",
     4.78,
     31.8,
     31.8,
     "2.4",
     3.572,
     14.33
    ],
    [
     "1-1/2 sq",
     "16 ga",
     "0.065",
     1.65,
     38.1,
     38.1,
     "1.269",
     1.888,
     4.95
    ],
    [
     "1-1/2 sq",
     "14 ga",
     "0.083",
     2.11,
     38.1,
     38.1,
     "1.6",
     2.381,
     6.32
    ],
    [
     "1-1/2 sq",
     "11 ga",
     "0.12",
     3.05,
     38.1,
     38.1,
     "2.252",
     3.351,
     9.14
    ],
    [
     "1-1/2 sq",
     "3/16",
     "0.188",
     4.78,
     38.1,
     38.1,
     "3.04",
     4.524,
     14.33
    ],
    [
     "1-1/2 sq",
     "1/4",
     "0.25",
     6.35,
     38.1,
     38.1,
     "3.7",
     5.506,
     19.05
    ],
    [
     "1-3/4 sq",
     "16 ga",
     "0.065",
     1.65,
     44.4,
     44.4,
     "1.49",
     2.217,
     4.95
    ],
    [
     "1-3/4 sq",
     "14 ga",
     "0.083",
     2.11,
     44.4,
     44.4,
     "1.882",
     2.801,
     6.32
    ],
    [
     "1-3/4 sq",
     "11 ga",
     "0.12",
     3.05,
     44.4,
     44.4,
     "2.66",
     3.959,
     9.14
    ],
    [
     "1-3/4 sq",
     "3/16",
     "0.188",
     4.78,
     44.4,
     44.4,
     "3.994",
     5.944,
     14.33
    ],
    [
     "2 sq",
     "16 ga",
     "0.065",
     1.65,
     50.8,
     50.8,
     "1.711",
     2.546,
     4.95
    ],
    [
     "2 sq",
     "14 ga",
     "0.083",
     2.11,
     50.8,
     50.8,
     "2.164",
     3.22,
     6.32
    ],
    [
     "2 sq",
     "11 ga",
     "0.12",
     3.05,
     50.8,
     50.8,
     "3.07",
     4.569,
     9.14
    ],
    [
     "2-1/4 sq",
     "14 ga",
     "0.083",
     2.11,
     57.1,
     57.1,
     "2.446",
     3.64,
     6.32
    ],
    [
     "2-1/4 sq",
     "11 ga",
     "0.12",
     3.05,
     57.1,
     57.1,
     "3.48",
     5.179,
     9.14
    ],
    [
     "2-1/2 sq",
     "14 ga",
     "0.083",
     2.11,
     63.5,
     63.5,
     "2.728",
     4.06,
     6.32
    ],
    [
     "2-1/2 sq",
     "11 ga",
     "0.12",
     3.05,
     63.5,
     63.5,
     "3.9",
     5.804,
     9.14
    ],
    [
     "3 sq",
     "14 ga",
     "0.083",
     2.11,
     76.2,
     76.2,
     "3.293",
     4.901,
     6.32
    ],
    [
     "3 sq",
     "11 ga",
     "0.12",
     3.05,
     76.2,
     76.2,
     "4.75",
     7.069,
     9.14
    ],
    [
     "3-1/2 sq",
     "11 ga",
     "0.12",
     3.05,
     88.9,
     88.9,
     "5.61",
     8.349,
     9.14
    ],
    [
     "4 sq",
     "11 ga",
     "0.12",
     3.05,
     101.6,
     101.6,
     "6.46",
     9.614,
     9.14
    ],
    [
     "1-1/2 x 1",
     "14 gauge",
     "0.083",
     2.11,
     38.1,
     25.4,
     "1.288",
     1.917,
     6.32
    ],
    [
     "1-1/2 x 1",
     "11 gauge",
     "0.12",
     3.05,
     38.1,
     25.4,
     "1.766",
     2.628,
     9.14
    ],
    [
     "2 x 1",
     "14 gauge",
     "0.083",
     2.11,
     50.8,
     25.4,
     "1.59",
     2.366,
     6.32
    ],
    [
     "2 x 1-1/4",
     "14 gauge",
     "0.083",
     2.11,
     50.8,
     31.8,
     "1.711",
     2.546,
     6.32
    ],
    [
     "2 x 1-1/2",
     "11 gauge",
     "0.12",
     3.05,
     50.8,
     38.1,
     "2.582",
     3.842,
     9.14
    ]
   ]
  }
 },
 "sheet_text": "Square and rectangular steel tube sizes by gauge (1x1, 1-1/2, 2x1 in; 16, 14, 11 ga) + ASTM A500 corner radius limit, weight per foot — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/steel-square-rectangular-tube-gauge-sizes/  (sheet CC BY 4.0)\nBasis: Sugar Steel square tubing chart and Continental Steel rectangular tube listings for size, wall and lb/ft; corner-radius limit from the ASTM A500 text as quoted by Industrial Tube and Chicago Tube; numbers only, no file\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Square and rectangular steel tube under about 2 in is mostly sold by gauge and made as mechanical tube: Industrial Tube Corp. says outside dimensions under 2 in with a wall under 0.120 in are typically ASTM A513, and 2 in and larger with 0.120 in and heavier are typically ASTM A500. So '1x1 A500' and '1-1/2 sq A500' are usually A513 in practice; the geometry and the 3t corner limit below are the same ideas either way.\n- ASTM A500 corner radius: 'the radius of any outside corner of the section shall not exceed three times the specified wall thickness' (A500 section 10.6, quoted by Industrial Tube, Chicago Tube, Speedy Metals; the Steel Tube Institute article says the same, 3 x t). The wall-thickness tolerance does not apply at corners. There is no nominal radius in A500, so no file is drawn here.\n- A500 tolerances (Industrial Tube Corp.): outside dimension +/-0.020 in for the largest side 1 to 2-1/2 in, +/-0.025 in over 2-1/2 to 3-1/2 in, +/-0.030 in over 3-1/2 to 5-1/2 in, +/-1 % above that; wall +/-10 %.\n- Sizes at 2 in and up in the AISC HSS database (HSS2x2x1/8 and heavier, with the true AISC walls) are on aisc-hss-rectangular-square with files; this page lists only what that page does not: sizes under 2 in and gauge walls (16, 14, 11 ga) in squares, plus the rectangular gauge sizes from Continental Steel. Weights are as printed by the distributors; they are nominal and different sources allow for the corner radius differently (gauge walls match a sharp-corner estimate to about 1 %; the heavier walls print up to 13% less, which is the corner allowance).\n- Gauge walls match what McMaster-Carr lists: its square and rectangular tube pages show wall thicknesses 0.035, 0.049, 1/16, 0.065, 0.083, 0.120, 1/8, 0.188, 1/4, 5/16, 3/8 and 1/2 in, and outside sizes from 3/8 to 8 in. McMaster has the per-part STEP; Xem links it and does not copy it.\n- Rectangular sizes 2x3, 2x4, 3x4 and so on are on the AISC page. Cold-formed C and Z purlins are not listed: no public standard table exists (each metal-building maker has its own sizes).\n\nsize (in)  wall name as printed  wall (in)  wall (mm)  outside H (mm)  outside B (mm)  weight (lb/ft)  weight (kg/m)  A500 max outside corner radius 3t (mm)\n1/2 sq  18 ga  0.049  1.24  12.7  12.7  0.3005  0.447  3.73\n1/2 sq  16 ga  0.065  1.65  12.7  12.7  0.3845  0.572  4.95\n3/4 sq  18 ga  0.049  1.24  19.0  19.0  0.4671  0.695  3.73\n3/4 sq  16 ga  0.065  1.65  19.0  19.0  0.6055  0.901  4.95\n3/4 sq  14 ga  0.083  2.11  19.0  19.0  0.7528  1.12  6.32\n3/4 sq  11 ga  0.12  3.05  19.0  19.0  1.028  1.53  9.14\n1 sq  16 ga  0.065  1.65  25.4  25.4  0.826  1.229  4.95\n1 sq  14 ga  0.083  2.11  25.4  25.4  1.035  1.54  6.32\n1 sq  11 ga  0.12  3.05  25.4  25.4  1.44  2.143  9.14\n1-1/4 sq  16 ga  0.065  1.65  31.8  31.8  1.048  1.56  4.95\n1-1/4 sq  14 ga  0.083  2.11  31.8  31.8  1.317  1.96  6.32\n1-1/4 sq  11 ga  0.12  3.05  31.8  31.8  1.844  2.744  9.14\n1-1/4 sq  3/16  0.188  4.78  31.8  31.8  2.4  3.572  14.33\n1-1/2 sq  16 ga  0.065  1.65  38.1  38.1  1.269  1.888  4.95\n1-1/2 sq  14 ga  0.083  2.11  38.1  38.1  1.6  2.381  6.32\n1-1/2 sq  11 ga  0.12  3.05  38.1  38.1  2.252  3.351  9.14\n1-1/2 sq  3/16  0.188  4.78  38.1  38.1  3.04  4.524  14.33\n1-1/2 sq  1/4  0.25  6.35  38.1  38.1  3.7  5.506  19.05\n1-3/4 sq  16 ga  0.065  1.65  44.4  44.4  1.49  2.217  4.95\n1-3/4 sq  14 ga  0.083  2.11  44.4  44.4  1.882  2.801  6.32\n1-3/4 sq  11 ga  0.12  3.05  44.4  44.4  2.66  3.959  9.14\n1-3/4 sq  3/16  0.188  4.78  44.4  44.4  3.994  5.944  14.33\n2 sq  16 ga  0.065  1.65  50.8  50.8  1.711  2.546  4.95\n2 sq  14 ga  0.083  2.11  50.8  50.8  2.164  3.22  6.32\n2 sq  11 ga  0.12  3.05  50.8  50.8  3.07  4.569  9.14\n2-1/4 sq  14 ga  0.083  2.11  57.1  57.1  2.446  3.64  6.32\n2-1/4 sq  11 ga  0.12  3.05  57.1  57.1  3.48  5.179  9.14\n2-1/2 sq  14 ga  0.083  2.11  63.5  63.5  2.728  4.06  6.32\n2-1/2 sq  11 ga  0.12  3.05  63.5  63.5  3.9  5.804  9.14\n3 sq  14 ga  0.083  2.11  76.2  76.2  3.293  4.901  6.32\n3 sq  11 ga  0.12  3.05  76.2  76.2  4.75  7.069  9.14\n3-1/2 sq  11 ga  0.12  3.05  88.9  88.9  5.61  8.349  9.14\n4 sq  11 ga  0.12  3.05  101.6  101.6  6.46  9.614  9.14\n1-1/2 x 1  14 gauge  0.083  2.11  38.1  25.4  1.288  1.917  6.32\n1-1/2 x 1  11 gauge  0.12  3.05  38.1  25.4  1.766  2.628  9.14\n2 x 1  14 gauge  0.083  2.11  50.8  25.4  1.59  2.366  6.32\n2 x 1-1/4  14 gauge  0.083  2.11  50.8  31.8  1.711  2.546  6.32\n2 x 1-1/2  11 gauge  0.12  3.05  50.8  38.1  2.582  3.842  9.14\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Sugar Steel: Square tubing chart: nominal size, weight per foot, wall thickness (1/2 x 1/2 to 16 x 16) — web — Publisher's page; dimensions are facts — https://sugarsteel.com/wp-content/uploads/SquareTubingFull.pdf\n- Continental Steel & Tube: Rectangular structural tubing, carbon steel: 1-1/2 x 1 to 2 x 1-1/2, 14 and 11 gauge, lb/ft — web — Publisher's page; dimensions are facts — https://continentalsteel.com/compare/pipe-and-tubing/rectangular-structural-tubing-carbon-steel\n- Industrial Tube Corporation: ASTM A500 square and rectangular tube: outside corner radius not over 3 x wall; outside-dimension and wall tolerances — web — Publisher's page; dimensions are facts — https://www.industrialtube.com/tolerances/\n- Industrial Tube Corporation: Rectangular structural tubing: under 2 in OD with wall under 0.120 in is typically ASTM A513; 2 in and up with 0.120 in and heavier is typically ASTM A500 — web — Publisher's page; dimensions are facts — https://www.industrialtube.com/rectangular-structural-tubing/\n- Chicago Tube & Iron: ASTM A500 section 10.6: outside corner radius not over three times the specified wall; wall tolerance does not apply at corners — web — Publisher's page; dimensions are facts — https://www.chicagotube.com/products-2/square-rectangular-round-tubing/astm-a-500\n- Steel Tube Institute: HSS article: the maximum corner radius for rectangular and square shapes is 3t; 10 % thickness tolerance — web — Publisher's page; dimensions are facts — https://steeltubeinstitute.org/wp-content/uploads/2022/08/HSS_Article_ASTM-080722.pdf\n- McMaster-Carr: Square hollow sections / square and rectangular tube, steel (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/square-hollow-sections\n- McMaster-Carr: Low-carbon steel rectangular tubes (ASTM A513 / A500; metric EN 10305-5) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/low-carbon-steel-rectangular-tubes\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=steel-square-rectangular-tube-gauge-sizes\n",
 "sources": [
  {
   "publisher": "Sugar Steel",
   "title": "Square tubing chart: nominal size, weight per foot, wall thickness (1/2 x 1/2 to 16 x 16)",
   "url": "https://sugarsteel.com/wp-content/uploads/SquareTubingFull.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Continental Steel & Tube",
   "title": "Rectangular structural tubing, carbon steel: 1-1/2 x 1 to 2 x 1-1/2, 14 and 11 gauge, lb/ft",
   "url": "https://continentalsteel.com/compare/pipe-and-tubing/rectangular-structural-tubing-carbon-steel",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Industrial Tube Corporation",
   "title": "ASTM A500 square and rectangular tube: outside corner radius not over 3 x wall; outside-dimension and wall tolerances",
   "url": "https://www.industrialtube.com/tolerances/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Industrial Tube Corporation",
   "title": "Rectangular structural tubing: under 2 in OD with wall under 0.120 in is typically ASTM A513; 2 in and up with 0.120 in and heavier is typically ASTM A500",
   "url": "https://www.industrialtube.com/rectangular-structural-tubing/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Chicago Tube & Iron",
   "title": "ASTM A500 section 10.6: outside corner radius not over three times the specified wall; wall tolerance does not apply at corners",
   "url": "https://www.chicagotube.com/products-2/square-rectangular-round-tubing/astm-a-500",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Steel Tube Institute",
   "title": "HSS article: the maximum corner radius for rectangular and square shapes is 3t; 10 % thickness tolerance",
   "url": "https://steeltubeinstitute.org/wp-content/uploads/2022/08/HSS_Article_ASTM-080722.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Square hollow sections / square and rectangular tube, steel (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/square-hollow-sections",
   "formats": [
    "STEP",
    "IGES",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Low-carbon steel rectangular tubes (ASTM A513 / A500; metric EN 10305-5) (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/low-carbon-steel-rectangular-tubes",
   "formats": [
    "STEP",
    "IGES",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "aisc-hss-rectangular-square",
  "aisc-hss-round",
  "en-10219-shs-square-hollow-sections",
  "en-10219-rhs-rectangular-hollow-sections",
  "aluminum-square-tube-6063-t52",
  "aluminum-rectangular-tube-6063-t52",
  "aisc-l-angles"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "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 corner radius of A500 square tube?",
   "a": "A500 only sets a cap: the outside corner radius may not exceed 3 x the wall. There is no nominal radius; AISC section tables use 2 x the design wall."
  },
  {
   "q": "Is 1x1 square tube A500?",
   "a": "Usually A513. Industrial Tube says tube under 2 in with a wall under 0.120 in is typically A513; A500 is typical from 2 in with 0.120 in and heavier walls."
  },
  {
   "q": "How much does 1x1x14 gauge square tube weigh?",
   "a": "1.035 lb/ft (0.083 in wall) per the Sugar Steel chart."
  },
  {
   "q": "Do you have C and Z purlin sizes?",
   "a": "No. Cold-formed C and Z purlins have no public standard table (each metal-building maker has its own); nothing is published rather than guessed."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/steel-square-rectangular-tube-gauge-sizes/index.md"
}