{
 "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": "double-braid-rope-polyester-nylon-diameters",
 "name": "Double-braid rope diameters (polyester, nylon): 1/4 to 2-5/8 in with weight per 100 ft and minimum break strength",
 "kind": "standard",
 "category": "Hardware",
 "group": "Materials & stock",
 "year": null,
 "question": "What diameters does double-braid polyester or nylon rope come in, and what does it weigh and break at?",
 "tags": [
  "rope",
  "double braid",
  "polyester rope",
  "nylon rope",
  "braided rope",
  "cordage",
  "line",
  "rigging",
  "tool"
 ],
 "aliases": [
  "double braid rope sizes",
  "polyester rope diameter weight per 100 ft",
  "1/2 inch polyester rope breaking strength",
  "double braid polyester rope sizes",
  "nylon double braid rope strength",
  "3/8 inch double braid rope",
  "rope diameter chart",
  "yale portland braid",
  "polyester rope 1 inch weight",
  "double braid rope break strength table",
  "braided rope sizes inch",
  "rope size 5/8"
 ],
 "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/double-braid-rope-polyester-nylon-diameters/",
 "sheet_txt": "https://xemstudio.com/objects/double-braid-rope-polyester-nylon-diameters/sheet.txt",
 "sheet": {
  "basis": "Yale Cordage Portland Braid data sheet, CWC composite double braid cut sheet and Oceanside nylon / polyester double braid tables; numbers only",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Double-braid rope has a braided core inside a braided cover; it is sold by nominal diameter in inches (1/4 to 2-5/8 in in Yale's data sheet). Three polyester double-braid sources and one nylon double-braid source are shown side by side; diameters are nominal (the actual diameter of a braided rope varies with load and make, and none of the sheets gives a diameter tolerance).",
   "Weights per 100 ft agree where two sources share a size: 9/16 (10.0), 5/8 (13.0) and 1-1/4 (54.0) are identical in Yale and CWC; 3/8 (5.0 vs 4.5), 1/2 (7.9 vs 8.1), 3/4 (16.4 vs 18.0), 1 (36.6 vs 32.0) and 1-1/2 (69.2 vs 75.0) differ, so rope of the same nominal size is not the same rope. Minimum break strengths differ much more (1/2 in polyester: Yale 9,000 lbf spliced, CWC 9,500, Oceanside 10,400; 3/4 in: 17,010 / 26,000 / 18,000). Yale's figure is a minimum spliced break; the other sheets print a minimum break without saying spliced or not. These are makers' numbers for specific products, not working loads, and no working-load limit is tabulated.",
   "Oceanside prints weight per coil (coil lengths differ per size), circumference is printed by none of the three, so weights per coil and circumference are left out. Oceanside's three-strand nylon table (1/4 to 1-1/2 in, 1,540 to 59,620 lbf) is not braided and is not tabulated.",
   "Circumference ('rope size' in inches around) is the older way to size rope: circumference = π × diameter. Not on any sheet read here, so not tabulated.",
   "Cord, paracord and bungee: paracord-types-mil-c-5040, bungee-shock-cord-diameters-and-hooks. Steel wire rope: wire-rope-sizes-6x19-7x19-1x19-weights.",
   "No STEP/STL: a rope is a plain cylinder of no fixed length. McMaster-Carr sells nylon and polyester rope; its category is linked."
  ],
  "table": {
   "columns": [
    "diameter (in)",
    "decimal (in)",
    "mm",
    "Yale Portland Braid polyester: lb/100 ft",
    "Yale: min spliced break (lbf)",
    "CWC polyester: lb/100 ft",
    "CWC: min break (lbf)",
    "Oceanside polyester DB: min break (lbf)",
    "Oceanside nylon DB: min break (lbf)"
   ],
   "rows": [
    [
     "1/4 in",
     "0.2500",
     "6.35",
     "2.2",
     "2,196",
     "—",
     "—",
     "—",
     "—"
    ],
    [
     "5/16 in",
     "0.3125",
     "7.94",
     "3.5",
     "3,366",
     "—",
     "—",
     "—",
     "—"
    ],
    [
     "3/8 in",
     "0.3750",
     "9.52",
     "5",
     "4,491",
     "4.5",
     "5,000",
     "4,900",
     "5,000"
    ],
    [
     "7/16 in",
     "0.4375",
     "11.11",
     "6.3",
     "6,543",
     "6.1",
     "7,500",
     "—",
     "—"
    ],
    [
     "1/2 in",
     "0.5000",
     "12.70",
     "7.9",
     "9,000",
     "8.1",
     "9,500",
     "10,400",
     "8,000"
    ],
    [
     "9/16 in",
     "0.5625",
     "14.29",
     "10",
     "11,205",
     "10",
     "16,150",
     "—",
     "—"
    ],
    [
     "5/8 in",
     "0.6250",
     "15.88",
     "13",
     "13,662",
     "13",
     "18,000",
     "16,100",
     "14,800"
    ],
    [
     "3/4 in",
     "0.7500",
     "19.05",
     "16.4",
     "17,010",
     "18",
     "26,000",
     "18,000",
     "19,000"
    ],
    [
     "7/8 in",
     "0.8750",
     "22.22",
     "27.1",
     "27,945",
     "25",
     "32,000",
     "—",
     "—"
    ],
    [
     "1 in",
     "1.0000",
     "25.40",
     "36.6",
     "36,288",
     "32",
     "42,000",
     "32,000",
     "33,500"
    ],
    [
     "1-1/8 in",
     "1.1250",
     "28.57",
     "43.5",
     "47,124",
     "46",
     "47,900",
     "—",
     "—"
    ],
    [
     "1-1/4 in",
     "1.2500",
     "31.75",
     "54",
     "49,140",
     "54",
     "56,200",
     "49,000",
     "52,000"
    ],
    [
     "1-1/2 in",
     "1.5000",
     "38.10",
     "69.2",
     "60,903",
     "75",
     "73,380",
     "—",
     "74,000"
    ],
    [
     "1-3/4 in",
     "1.7500",
     "44.45",
     "103",
     "86,400",
     "—",
     "—",
     "—",
     "—"
    ],
    [
     "2 in",
     "2.0000",
     "50.80",
     "132",
     "112,716",
     "—",
     "—",
     "—",
     "131,000"
    ],
    [
     "2-1/4 in",
     "2.2500",
     "57.15",
     "155",
     "135,000",
     "—",
     "—",
     "—",
     "—"
    ],
    [
     "2-1/2 in",
     "2.5000",
     "63.50",
     "172.6",
     "151,380",
     "—",
     "—",
     "—",
     "—"
    ],
    [
     "2-5/8 in",
     "2.6250",
     "66.67",
     "220",
     "189,000",
     "—",
     "—",
     "—",
     "—"
    ]
   ]
  }
 },
 "sheet_text": "Double-braid rope diameters (polyester, nylon): 1/4 to 2-5/8 in with weight per 100 ft and minimum break strength — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/double-braid-rope-polyester-nylon-diameters/  (sheet CC BY 4.0)\nBasis: Yale Cordage Portland Braid data sheet, CWC composite double braid cut sheet and Oceanside nylon / polyester double braid tables; numbers only\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Double-braid rope has a braided core inside a braided cover; it is sold by nominal diameter in inches (1/4 to 2-5/8 in in Yale's data sheet). Three polyester double-braid sources and one nylon double-braid source are shown side by side; diameters are nominal (the actual diameter of a braided rope varies with load and make, and none of the sheets gives a diameter tolerance).\n- Weights per 100 ft agree where two sources share a size: 9/16 (10.0), 5/8 (13.0) and 1-1/4 (54.0) are identical in Yale and CWC; 3/8 (5.0 vs 4.5), 1/2 (7.9 vs 8.1), 3/4 (16.4 vs 18.0), 1 (36.6 vs 32.0) and 1-1/2 (69.2 vs 75.0) differ, so rope of the same nominal size is not the same rope. Minimum break strengths differ much more (1/2 in polyester: Yale 9,000 lbf spliced, CWC 9,500, Oceanside 10,400; 3/4 in: 17,010 / 26,000 / 18,000). Yale's figure is a minimum spliced break; the other sheets print a minimum break without saying spliced or not. These are makers' numbers for specific products, not working loads, and no working-load limit is tabulated.\n- Oceanside prints weight per coil (coil lengths differ per size), circumference is printed by none of the three, so weights per coil and circumference are left out. Oceanside's three-strand nylon table (1/4 to 1-1/2 in, 1,540 to 59,620 lbf) is not braided and is not tabulated.\n- Circumference ('rope size' in inches around) is the older way to size rope: circumference = π × diameter. Not on any sheet read here, so not tabulated.\n- Cord, paracord and bungee: paracord-types-mil-c-5040, bungee-shock-cord-diameters-and-hooks. Steel wire rope: wire-rope-sizes-6x19-7x19-1x19-weights.\n- No STEP/STL: a rope is a plain cylinder of no fixed length. McMaster-Carr sells nylon and polyester rope; its category is linked.\n\ndiameter (in)  decimal (in)  mm  Yale Portland Braid polyester: lb/100 ft  Yale: min spliced break (lbf)  CWC polyester: lb/100 ft  CWC: min break (lbf)  Oceanside polyester DB: min break (lbf)  Oceanside nylon DB: min break (lbf)\n1/4 in  0.2500  6.35  2.2  2,196  —  —  —  —\n5/16 in  0.3125  7.94  3.5  3,366  —  —  —  —\n3/8 in  0.3750  9.52  5  4,491  4.5  5,000  4,900  5,000\n7/16 in  0.4375  11.11  6.3  6,543  6.1  7,500  —  —\n1/2 in  0.5000  12.70  7.9  9,000  8.1  9,500  10,400  8,000\n9/16 in  0.5625  14.29  10  11,205  10  16,150  —  —\n5/8 in  0.6250  15.88  13  13,662  13  18,000  16,100  14,800\n3/4 in  0.7500  19.05  16.4  17,010  18  26,000  18,000  19,000\n7/8 in  0.8750  22.22  27.1  27,945  25  32,000  —  —\n1 in  1.0000  25.40  36.6  36,288  32  42,000  32,000  33,500\n1-1/8 in  1.1250  28.57  43.5  47,124  46  47,900  —  —\n1-1/4 in  1.2500  31.75  54  49,140  54  56,200  49,000  52,000\n1-1/2 in  1.5000  38.10  69.2  60,903  75  73,380  —  74,000\n1-3/4 in  1.7500  44.45  103  86,400  —  —  —  —\n2 in  2.0000  50.80  132  112,716  —  —  —  131,000\n2-1/4 in  2.2500  57.15  155  135,000  —  —  —  —\n2-1/2 in  2.5000  63.50  172.6  151,380  —  —  —  —\n2-5/8 in  2.6250  66.67  220  189,000  —  —  —  —\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Yale Cordage: Portland Braid (double-braided polyester): diameter, weight per 100 ft, minimum spliced break strength, 1/4 to 2-5/8 in — web — Publisher's page; dimensions are facts — https://yalecordage.com/wp-content/uploads/2021/03/Yale-Cordage-Data-Sheet-Portland-Braid.pdf\n- Utility Pipe Supply (polyester double braid pulling rope cut sheet): Composite double braid pulling rope: diameter 3/8 to 1-1/2 in, minimum break strength, weight per 100 ft — web — Publisher's page; dimensions are facts — https://utilitypipesupply.com/cdn/shop/files/Composite-Double-Braid-Pulling-Rope-Cut-Sheet_8.5x11_4_7_23.pdf\n- Oceanside (catalogue 2024, section 10): Nylon double braid 2-1 and polyester double braided 2-1, Ocean Steel Line: diameter, weight per coil, minimum break; nylon 3-strand — web — Publisher's page; dimensions are facts — https://cdn.shopify.com/s/files/1/0445/7185/2960/files/Pages_from_Oceanside-Product-Catalogue-2024-SECTION-10.pdf\n- McMaster-Carr: Nylon rope (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/nylon-rope\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=double-braid-rope-polyester-nylon-diameters\n",
 "sources": [
  {
   "publisher": "Yale Cordage",
   "title": "Portland Braid (double-braided polyester): diameter, weight per 100 ft, minimum spliced break strength, 1/4 to 2-5/8 in",
   "url": "https://yalecordage.com/wp-content/uploads/2021/03/Yale-Cordage-Data-Sheet-Portland-Braid.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Utility Pipe Supply (polyester double braid pulling rope cut sheet)",
   "title": "Composite double braid pulling rope: diameter 3/8 to 1-1/2 in, minimum break strength, weight per 100 ft",
   "url": "https://utilitypipesupply.com/cdn/shop/files/Composite-Double-Braid-Pulling-Rope-Cut-Sheet_8.5x11_4_7_23.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Oceanside (catalogue 2024, section 10)",
   "title": "Nylon double braid 2-1 and polyester double braided 2-1, Ocean Steel Line: diameter, weight per coil, minimum break; nylon 3-strand",
   "url": "https://cdn.shopify.com/s/files/1/0445/7185/2960/files/Pages_from_Oceanside-Product-Catalogue-2024-SECTION-10.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Nylon rope (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/nylon-rope",
   "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": [
  "paracord-types-mil-c-5040",
  "bungee-shock-cord-diameters-and-hooks",
  "wire-rope-sizes-6x19-7x19-1x19-weights",
  "wire-rope-clips-crosby-g450-g429",
  "wire-rope-thimbles-din-6899",
  "rope-sheave-3mm-pitch-30"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. 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. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [],
 "faq": [
  {
   "q": "How strong is 1/2 inch double-braid polyester rope?",
   "a": "Yale: 9,000 lbf minimum spliced break strength; CWC: 9,500; Oceanside: 10,400. Weight 7.9 (Yale) to 8.1 (CWC) lb per 100 ft."
  },
  {
   "q": "What diameters does double-braid rope come in?",
   "a": "1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-1/2, 1-3/4, 2, 2-1/4, 2-1/2 and 2-5/8 in (Yale Portland Braid)."
  },
  {
   "q": "How much does 1 inch polyester double-braid rope weigh?",
   "a": "36.6 lb per 100 ft (Yale) or 32 lb per 100 ft (CWC)."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/double-braid-rope-polyester-nylon-diameters/index.md"
}