{
 "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": "polyethylene-tubing-lldpe-sizes",
 "name": "Polyethylene tubing sizes (LLDPE): 1/8 to 3/4 in and 4 to 12 mm OD × ID × wall, plus Liquiflex POE",
 "kind": "standard",
 "category": "Tri-clamp & pipe",
 "group": "Pipe, tube & threads",
 "year": null,
 "question": "What are the OD, ID and wall of 1/4 inch and 3/8 inch polyethylene tubing, and what are the metric sizes?",
 "tags": [
  "polyethylene tubing",
  "pe tubing",
  "lldpe tubing",
  "poly tubing",
  "poe tubing",
  "polyolefin tubing",
  "natural tubing",
  "freelin-wade",
  "tote"
 ],
 "aliases": [
  "1/4 polyethylene tubing id",
  "3/8 od polyethylene tubing id",
  "polyethylene tubing 1/2 od .375 id",
  "pe tubing 6mm od 4mm id",
  "1/4 od x 0.170 id polyethylene",
  "poly tubing sizes chart",
  "lldpe tubing 5/8 od",
  "polyethylene tubing wall thickness 3/8",
  "pe tubing 8mm",
  "polyethylene tube 1/8 od .062 id",
  "liquiflex poe tubing",
  "12mm pe tubing id 9mm",
  "3/4 od polyethylene tubing"
 ],
 "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/polyethylene-tubing-lldpe-sizes/",
 "sheet_txt": "https://xemstudio.com/objects/polyethylene-tubing-lldpe-sizes/sheet.txt",
 "sheet": {
  "basis": "Freelin-Wade polyethylene catalog pages (LLDPE inch and metric, Liquiflex POE); one maker; numbers only; pressure ratings left out",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Polyethylene tubing is sold by OD with the ID set by the wall; the sizes read are Freelin-Wade's linear low-density polyethylene (LLDPE) line: 1/8 in OD (0.062 ID, 0.031 wall), 5/32 (0.106, 0.025), 1/4 (0.170, 0.040), 5/16 (0.187, 0.062), 3/8 (0.250, 0.062), 1/2 (0.375, 0.062), 5/8 (0.500, 0.062), 3/4 (0.625, 0.062) and 3/4 × 0.500 (0.125 wall) in; metric 4 × 2.7, 6 × 4, 8 × 6, 10 × 8 and 12 × 9 mm. The catalog page says Freelin-Wade no longer offers low-density polyethylene (LDPE). 'Poly tubing' for drip irrigation is sold in similar ID × OD sizes: drip-irrigation-tubing-sizes.",
   "Liquiflex POE (polyolefin, listed separately) is 1/4 in OD × 1/8 in ID (0.062 wall) and 3/8 in OD × 0.245 in ID (0.062 wall). Each ID and wall was checked against OD − 2 × wall: the LLDPE rows agree to within 0.004 in (0.1 mm for the metric rows); the POE 3/8 in row does not quite (3/8 − 2 × 0.062 is 0.251 in against the printed ID 0.245 in), and both printed values are shown. ",
   "Bend radius is shown (inches, as printed) for the inch LLDPE and POE rows; the datasheet's metric bend radii are not copied (printed without units, in the text read). Working pressures at 75 °F and 150 °F and part numbers are left out. Other tubing: nylon-tubing-inch-metric-sizes, tygon-vinyl-tubing-e-3603-sizes, ptfe-fep-pfa-tubing-fractional-sizes, silicone-tube-and-fittings. No files: tubing is not drawn as a fixed shape."
  ],
  "table": {
   "columns": [
    "family",
    "OD as listed",
    "OD, in",
    "OD, mm",
    "ID, in",
    "ID, mm",
    "wall, in",
    "wall, mm",
    "bend radius, in (as printed)"
   ],
   "rows": [
    [
     "LLDPE (inch)",
     "1/8",
     "0.125",
     "3.18",
     "0.062",
     "1.57",
     "0.031",
     "0.79",
     "1/2"
    ],
    [
     "LLDPE (inch)",
     "5/32",
     "0.1562",
     "3.97",
     "0.106",
     "2.69",
     "0.025",
     "0.64",
     "1"
    ],
    [
     "LLDPE (inch)",
     "1/4",
     "0.25",
     "6.35",
     "0.170",
     "4.32",
     "0.040",
     "1.02",
     "1-1/4"
    ],
    [
     "LLDPE (inch)",
     "5/16",
     "0.3125",
     "7.94",
     "0.187",
     "4.75",
     "0.062",
     "1.57",
     "1-1/2"
    ],
    [
     "LLDPE (inch)",
     "3/8",
     "0.375",
     "9.53",
     "0.250",
     "6.35",
     "0.062",
     "1.57",
     "2"
    ],
    [
     "LLDPE (inch)",
     "1/2",
     "0.5",
     "12.70",
     "0.375",
     "9.53",
     "0.062",
     "1.57",
     "2-1/2"
    ],
    [
     "LLDPE (inch)",
     "5/8",
     "0.625",
     "15.88",
     "0.500",
     "12.70",
     "0.062",
     "1.57",
     "3"
    ],
    [
     "LLDPE (inch)",
     "3/4",
     "0.75",
     "19.05",
     "0.625",
     "15.88",
     "0.062",
     "1.57",
     "4"
    ],
    [
     "LLDPE (inch)",
     "3/4",
     "0.75",
     "19.05",
     "0.500",
     "12.70",
     "0.125",
     "3.18",
     "2.5"
    ],
    [
     "LLDPE (metric)",
     "4 mm",
     "0.1575",
     "4",
     "0.106",
     "2.7",
     "0.026",
     "0.65",
     "—"
    ],
    [
     "LLDPE (metric)",
     "6 mm",
     "0.2362",
     "6",
     "0.157",
     "4",
     "0.039",
     "1",
     "—"
    ],
    [
     "LLDPE (metric)",
     "8 mm",
     "0.315",
     "8",
     "0.236",
     "6",
     "0.039",
     "1",
     "—"
    ],
    [
     "LLDPE (metric)",
     "10 mm",
     "0.3937",
     "10",
     "0.315",
     "8",
     "0.039",
     "1",
     "—"
    ],
    [
     "LLDPE (metric)",
     "12 mm",
     "0.4724",
     "12",
     "0.354",
     "9",
     "0.059",
     "1.5",
     "—"
    ],
    [
     "Liquiflex POE (polyolefin, inch)",
     "1/4",
     "0.25",
     "6.35",
     "0.125",
     "3.18",
     "0.062",
     "1.57",
     ".75"
    ],
    [
     "Liquiflex POE (polyolefin, inch)",
     "3/8",
     "0.375",
     "9.53",
     "0.245",
     "6.22",
     "0.062",
     "1.57",
     "1.5"
    ]
   ]
  }
 },
 "sheet_text": "Polyethylene tubing sizes (LLDPE): 1/8 to 3/4 in and 4 to 12 mm OD × ID × wall, plus Liquiflex POE — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/polyethylene-tubing-lldpe-sizes/  (sheet CC BY 4.0)\nBasis: Freelin-Wade polyethylene catalog pages (LLDPE inch and metric, Liquiflex POE); one maker; numbers only; pressure ratings left out\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Polyethylene tubing is sold by OD with the ID set by the wall; the sizes read are Freelin-Wade's linear low-density polyethylene (LLDPE) line: 1/8 in OD (0.062 ID, 0.031 wall), 5/32 (0.106, 0.025), 1/4 (0.170, 0.040), 5/16 (0.187, 0.062), 3/8 (0.250, 0.062), 1/2 (0.375, 0.062), 5/8 (0.500, 0.062), 3/4 (0.625, 0.062) and 3/4 × 0.500 (0.125 wall) in; metric 4 × 2.7, 6 × 4, 8 × 6, 10 × 8 and 12 × 9 mm. The catalog page says Freelin-Wade no longer offers low-density polyethylene (LDPE). 'Poly tubing' for drip irrigation is sold in similar ID × OD sizes: drip-irrigation-tubing-sizes.\n- Liquiflex POE (polyolefin, listed separately) is 1/4 in OD × 1/8 in ID (0.062 wall) and 3/8 in OD × 0.245 in ID (0.062 wall). Each ID and wall was checked against OD − 2 × wall: the LLDPE rows agree to within 0.004 in (0.1 mm for the metric rows); the POE 3/8 in row does not quite (3/8 − 2 × 0.062 is 0.251 in against the printed ID 0.245 in), and both printed values are shown. \n- Bend radius is shown (inches, as printed) for the inch LLDPE and POE rows; the datasheet's metric bend radii are not copied (printed without units, in the text read). Working pressures at 75 °F and 150 °F and part numbers are left out. Other tubing: nylon-tubing-inch-metric-sizes, tygon-vinyl-tubing-e-3603-sizes, ptfe-fep-pfa-tubing-fractional-sizes, silicone-tube-and-fittings. No files: tubing is not drawn as a fixed shape.\n\nfamily  OD as listed  OD, in  OD, mm  ID, in  ID, mm  wall, in  wall, mm  bend radius, in (as printed)\nLLDPE (inch)  1/8  0.125  3.18  0.062  1.57  0.031  0.79  1/2\nLLDPE (inch)  5/32  0.1562  3.97  0.106  2.69  0.025  0.64  1\nLLDPE (inch)  1/4  0.25  6.35  0.170  4.32  0.040  1.02  1-1/4\nLLDPE (inch)  5/16  0.3125  7.94  0.187  4.75  0.062  1.57  1-1/2\nLLDPE (inch)  3/8  0.375  9.53  0.250  6.35  0.062  1.57  2\nLLDPE (inch)  1/2  0.5  12.70  0.375  9.53  0.062  1.57  2-1/2\nLLDPE (inch)  5/8  0.625  15.88  0.500  12.70  0.062  1.57  3\nLLDPE (inch)  3/4  0.75  19.05  0.625  15.88  0.062  1.57  4\nLLDPE (inch)  3/4  0.75  19.05  0.500  12.70  0.125  3.18  2.5\nLLDPE (metric)  4 mm  0.1575  4  0.106  2.7  0.026  0.65  —\nLLDPE (metric)  6 mm  0.2362  6  0.157  4  0.039  1  —\nLLDPE (metric)  8 mm  0.315  8  0.236  6  0.039  1  —\nLLDPE (metric)  10 mm  0.3937  10  0.315  8  0.039  1  —\nLLDPE (metric)  12 mm  0.4724  12  0.354  9  0.059  1.5  —\nLiquiflex POE (polyolefin, inch)  1/4  0.25  6.35  0.125  3.18  0.062  1.57  .75\nLiquiflex POE (polyolefin, inch)  3/8  0.375  9.53  0.245  6.22  0.062  1.57  1.5\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Freelin-Wade: Polyethylene catalog pages: LLDPE inch and metric, Liquiflex POE: OD, ID, wall, bend radius — web — Maker catalog; numbers only — https://www.freelin-wade.com/documents/catalogs/polyethylene-catalog-pages.pdf\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=polyethylene-tubing-lldpe-sizes\n",
 "sources": [
  {
   "publisher": "Freelin-Wade",
   "title": "Polyethylene catalog pages: LLDPE inch and metric, Liquiflex POE: OD, ID, wall, bend radius",
   "url": "https://www.freelin-wade.com/documents/catalogs/polyethylene-catalog-pages.pdf",
   "formats": [
    "web"
   ],
   "license": "Maker catalog; numbers only",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "drip-irrigation-tubing-sizes",
  "nylon-tubing-inch-metric-sizes",
  "tygon-vinyl-tubing-e-3603-sizes",
  "ptfe-fep-pfa-tubing-fractional-sizes",
  "silicone-tube",
  "push-to-connect-fitting-sizes"
 ],
 "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": "What is the ID of 1/4 inch OD polyethylene tubing?",
   "a": "0.170 in (4.32 mm) with a 0.040 in wall; Liquiflex POE 1/4 in OD has a 1/8 in ID (0.062 wall)."
  },
  {
   "q": "What is 6 mm polyethylene tubing?",
   "a": "6 mm OD × 4 mm ID (1 mm wall) in Freelin-Wade's metric LLDPE line."
  },
  {
   "q": "What is the wall of 3/8 inch polyethylene tubing?",
   "a": "0.062 in (1.57 mm); ID 0.250 in (6.35 mm)."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/polyethylene-tubing-lldpe-sizes/index.md"
}