{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "purdy-marathon-18-in-roller-cover",
 "name": "Purdy Marathon 18 in roller cover",
 "kind": "modern",
 "category": "Tools & garage",
 "group": "Painting",
 "year": null,
 "question": "What size is the Purdy Marathon 18 in roller cover?",
 "tags": [
  "roller cover",
  "paint",
  "painting"
 ],
 "aliases": [
  "18 inch roller cover core size",
  "purdy marathon 18 in roller cover dimensions"
 ],
 "overall_mm": {
  "length": 457.2,
  "width": 38.1,
  "height": 38.1
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/purdy-marathon-18-in-roller-cover/",
 "sheet_txt": "https://xemstudio.com/objects/purdy-marathon-18-in-roller-cover/sheet.txt",
 "sheet": {
  "basis": "Purdy",
  "overall_mm": {
   "length": 457.2,
   "width": 38.1,
   "height": 38.1
  },
  "notes": [
   "Purdy Marathon 18 in roller cover: length 18 in (457.2 mm); core diameter 1.5 in (38.1 mm); naps 3/8, 1/2, 3/4 in. Same 1-1/2 in core as the 9 in; some 18 in frames and covers use a 2-1/4 in jumbo core instead.",
   "Actual published size, no printing allowance. The file is the envelope at that size."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "length",
     "18 in (457.2 mm)"
    ],
    [
     "core diameter",
     "1.5 in (38.1 mm)"
    ],
    [
     "naps",
     "3/8, 1/2, 3/4 in"
    ]
   ]
  }
 },
 "sheet_text": "Purdy Marathon 18 in roller cover — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/purdy-marathon-18-in-roller-cover/  (CC BY 4.0)\nBasis: Purdy\nCatalog version: 2026-10-20\n\nOverall (mm): length 457.2, width 38.1, height 38.1\n- Purdy Marathon 18 in roller cover: length 18 in (457.2 mm); core diameter 1.5 in (38.1 mm); naps 3/8, 1/2, 3/4 in. Same 1-1/2 in core as the 9 in; some 18 in frames and covers use a 2-1/4 in jumbo core instead.\n- Actual published size, no printing allowance. The file is the envelope at that size.\n\ndimension  value\nlength  18 in (457.2 mm)\ncore diameter  1.5 in (38.1 mm)\nnaps  3/8, 1/2, 3/4 in\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Purdy: Purdy Marathon 18 in roller cover — web — Publisher's page; dimensions are facts — https://www.purdy.com/en/products/rollers/marathon\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/purdy-marathon-18-in-roller-cover/index.json\nAPI: https://xemstudio.com/api/geometry?object=purdy-marathon-18-in-roller-cover\n",
 "sources": [
  {
   "publisher": "Purdy",
   "title": "Purdy Marathon 18 in roller cover",
   "url": "https://www.purdy.com/en/products/rollers/marathon",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
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  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "purdy-marathon-9-in-roller-cover",
  "purdy-whitedove-pro-extra-9-in-roller-cover",
  "purdy-jumbo-mini-4-1-2-in-roller-cover",
  "harris-trade-jumbo-mini-4-in-roller-sleeve-uk",
  "faithfull-9-in-1-3-4-in-roller-sleeve-uk",
  "paint-cans-and-buckets",
  "broom-and-tool-handles"
 ],
 "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 size is the Purdy Marathon 18 in roller cover?",
   "a": "length 18 in (457.2 mm); core diameter 1.5 in (38.1 mm); naps 3/8, 1/2, 3/4 in."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "purdy-marathon-18-in-roller-cover-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/purdy-marathon-18-in-roller-cover/purdy-marathon-18-in-roller-cover-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/purdy-marathon-18-in-roller-cover/purdy-marathon-18-in-roller-cover-envelope.stl",
   "note": "Ø38.1 × 457.2 mm (published size, no allowance)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/purdy-marathon-18-in-roller-cover/index.md"
}