{
 "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": "mason-jar",
 "name": "Mason jars: regular (60 mm mouth) and wide-mouth (76 mm mouth), outside envelopes",
 "kind": "standard",
 "category": "Hardware",
 "group": "Found & household materials",
 "year": null,
 "question": "What is the mouth opening of a mason jar?",
 "tags": [
  "jar",
  "mason jar",
  "glass",
  "found materials",
  "stirling",
  "long earth society"
 ],
 "aliases": [
  "mason jar mouth size",
  "wide mouth mason jar size",
  "quart jar dimensions",
  "mason jar opening diameter"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 6,
 "url": "https://xemstudio.com/objects/mason-jar/",
 "sheet_txt": "https://xemstudio.com/objects/mason-jar/sheet.txt",
 "sheet": {
  "basis": "Mouth openings 2 3/8 in (60 mm) regular and 3 in (76 mm) wide (USDA Complete Guide to Home Canning, via Wikipedia); outside envelopes at the sizes in the table",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Mouth openings: regular 60 mm, wide 76 mm. Regular jars take the Ø70.00 lid and the 70-450 band; wide jars the Ø86.00 lid.",
   "The files are outside envelopes (plain cylinders) of six common jars at the sizes in the table; those sizes are typical and vary by maker, as no jar drawing is published.",
   "Not drawn: the glass thread, neck, shoulder and wall (the 450 glass finish drawings are not published)."
  ],
  "table": {
   "columns": [
    "jar",
    "mouth",
    "mouth_opening_mm",
    "lid_mm",
    "envelope_od_mm",
    "envelope_height_mm"
   ],
   "rows": [
    [
     "half-pint",
     "regular",
     60,
     70,
     65,
     95
    ],
    [
     "pint",
     "regular",
     60,
     70,
     78,
     130
    ],
    [
     "quart",
     "regular",
     60,
     70,
     90,
     175
    ],
    [
     "pint",
     "wide",
     76,
     86,
     86,
     125
    ],
    [
     "quart",
     "wide",
     76,
     86,
     90,
     170
    ],
    [
     "half-gallon",
     "wide",
     76,
     86,
     110,
     240
    ]
   ]
  }
 },
 "sheet_text": "Mason jars: regular (60 mm mouth) and wide-mouth (76 mm mouth), outside envelopes — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/mason-jar/  (CC BY 4.0)\nBasis: Mouth openings 2 3/8 in (60 mm) regular and 3 in (76 mm) wide (USDA Complete Guide to Home Canning, via Wikipedia); outside envelopes at the sizes in the table\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Mouth openings: regular 60 mm, wide 76 mm. Regular jars take the Ø70.00 lid and the 70-450 band; wide jars the Ø86.00 lid.\n- The files are outside envelopes (plain cylinders) of six common jars at the sizes in the table; those sizes are typical and vary by maker, as no jar drawing is published.\n- Not drawn: the glass thread, neck, shoulder and wall (the 450 glass finish drawings are not published).\n\njar  mouth  mouth_opening_mm  lid_mm  envelope_od_mm  envelope_height_mm\nhalf-pint  regular  60  70  65  95\npint  regular  60  70  78  130\nquart  regular  60  70  90  175\npint  wide  76  86  86  125\nquart  wide  76  86  90  170\nhalf-gallon  wide  76  86  110  240\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Wikipedia: Mason jar — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Mason_jar\n- Ball (Newell Brands): Ball canning jars and lids — web — Ball site [verify license at link] — https://www.ballmasonjars.com/\n- Comet Tool Co.: 70-450 continuous-thread closure drawing (part 1340-0109): T 2.804 in at skirt, E 2.700 in at midpoint, 4 TPI (.250 pitch), 1 1/4 turns — PDF — manufacturer drawing [verify license at link] — https://www.comet-tool.com/wp-content/uploads/2021/08/70-450-0109-merged.pdf\n- WebstaurantStore (Ball 30000): Ball regular-mouth lids and bands: top diameter 2 3/4 in, height 9/16 in — web — listing [verify license at link] — https://www.webstaurantstore.com/ball-30000-regular-mouth-replacement-lids-and-bands-pack/52730000.html\n- WebstaurantStore (Ball 40000ZFP): Ball wide-mouth lids and bands: top diameter 3 3/8 in, height 5/8 in — web — listing [verify license at link] — https://www.webstaurantstore.com/ball-40000zfp-wide-mouth-lids-and-bands-for-canning-jars-pack/52740000.html\n- Healthy Canning: Lids for home canning: regular mouth 70 mm (2 3/4 in), wide mouth 86 mm (3 3/8 in) — web — site [verify license at link] — https://www.healthycanning.com/lids-for-home-canning/\n- The Cary Company: 70G-450 metal lid spec 30WG70 (GPI 450 finish; tinplate minimum nominal thickness .00605 in) — PDF — distributor spec [verify license at link] — https://www.thecarycompany.com/media/pdf/specs/30WG70.pdf\n- Long Earth Society: Engine builds (videos and write-ups) — web, video — LES site — https://longearthsociety.com/engineering/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/mason-jar/index.json\nAPI: https://xemstudio.com/api/geometry?object=mason-jar\n",
 "sources": [
  {
   "publisher": "Wikipedia",
   "title": "Mason jar",
   "url": "https://en.wikipedia.org/wiki/Mason_jar",
   "formats": [
    "web"
   ],
   "license": "CC BY-SA 4.0 (text)",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Ball (Newell Brands)",
   "title": "Ball canning jars and lids",
   "url": "https://www.ballmasonjars.com/",
   "formats": [
    "web"
   ],
   "license": "Ball site",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Comet Tool Co.",
   "title": "70-450 continuous-thread closure drawing (part 1340-0109): T 2.804 in at skirt, E 2.700 in at midpoint, 4 TPI (.250 pitch), 1 1/4 turns",
   "url": "https://www.comet-tool.com/wp-content/uploads/2021/08/70-450-0109-merged.pdf",
   "formats": [
    "PDF"
   ],
   "license": "manufacturer drawing",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "WebstaurantStore (Ball 30000)",
   "title": "Ball regular-mouth lids and bands: top diameter 2 3/4 in, height 9/16 in",
   "url": "https://www.webstaurantstore.com/ball-30000-regular-mouth-replacement-lids-and-bands-pack/52730000.html",
   "formats": [
    "web"
   ],
   "license": "listing",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "WebstaurantStore (Ball 40000ZFP)",
   "title": "Ball wide-mouth lids and bands: top diameter 3 3/8 in, height 5/8 in",
   "url": "https://www.webstaurantstore.com/ball-40000zfp-wide-mouth-lids-and-bands-for-canning-jars-pack/52740000.html",
   "formats": [
    "web"
   ],
   "license": "listing",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Healthy Canning",
   "title": "Lids for home canning: regular mouth 70 mm (2 3/4 in), wide mouth 86 mm (3 3/8 in)",
   "url": "https://www.healthycanning.com/lids-for-home-canning/",
   "formats": [
    "web"
   ],
   "license": "site",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "The Cary Company",
   "title": "70G-450 metal lid spec 30WG70 (GPI 450 finish; tinplate minimum nominal thickness .00605 in)",
   "url": "https://www.thecarycompany.com/media/pdf/specs/30WG70.pdf",
   "formats": [
    "PDF"
   ],
   "license": "distributor spec",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Long Earth Society",
   "title": "Engine builds (videos and write-ups)",
   "url": "https://longearthsociety.com/engineering/",
   "formats": [
    "web",
    "video"
   ],
   "license": "LES site",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "mason-jar-lid",
  "mason-jar-band",
  "rubber-stoppers",
  "o-rings-metric",
  "steel-food-cans"
 ],
 "fits": [
  {
   "role": "Goes in or on",
   "items": [
    {
     "slug": "mason-jar-lid",
     "why": "the lid sits on the rim"
    }
   ]
  },
  {
   "role": "Connects to",
   "items": [
    {
     "slug": "mason-jar-band",
     "why": "the band screws onto the jar"
    }
   ]
  }
 ],
 "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": "How wide is the opening of a mason jar?",
   "a": "60 mm (2 3/8 in) for regular mouth and 76 mm (3 in) for wide mouth."
  },
  {
   "q": "Are the jar files exact?",
   "a": "They are outside envelopes at typical sizes; jars vary by maker and no jar drawing is published, so measure yours."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "mason-jar-half-pint-regular-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-half-pint-regular-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-half-pint-regular-envelope.stl",
   "note": "half-pint regular-mouth jar, outside envelope Ø65 × 95 (table values, typical ±2 mm by maker); glass thread, neck and wall not drawn"
  },
  {
   "file": "mason-jar-pint-regular-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-pint-regular-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-pint-regular-envelope.stl",
   "note": "pint regular-mouth jar, outside envelope Ø78 × 130 (table values, typical ±2 mm by maker); glass thread, neck and wall not drawn"
  },
  {
   "file": "mason-jar-quart-regular-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-quart-regular-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-quart-regular-envelope.stl",
   "note": "quart regular-mouth jar, outside envelope Ø90 × 175 (table values, typical ±2 mm by maker); glass thread, neck and wall not drawn"
  },
  {
   "file": "mason-jar-pint-wide-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-pint-wide-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-pint-wide-envelope.stl",
   "note": "pint wide-mouth jar, outside envelope Ø86 × 125 (table values, typical ±2 mm by maker); glass thread, neck and wall not drawn"
  },
  {
   "file": "mason-jar-quart-wide-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-quart-wide-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-quart-wide-envelope.stl",
   "note": "quart wide-mouth jar, outside envelope Ø90 × 170 (table values, typical ±2 mm by maker); glass thread, neck and wall not drawn"
  },
  {
   "file": "mason-jar-half-gallon-wide-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-half-gallon-wide-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mason-jars-and-lids/mason-jar-half-gallon-wide-envelope.stl",
   "note": "half-gallon wide-mouth jar, outside envelope Ø110 × 240 (table values, typical ±2 mm by maker); glass thread, neck and wall not drawn"
  }
 ],
 "markdown": "https://xemstudio.com/objects/mason-jar/index.md"
}