{
 "slug": "door-hinges",
 "name": "Door Hinges",
 "root": "tools-hardware",
 "unit": "each",
 "unit_as_designed": null,
 "unit_note": "Count individual hinges in the package, using an explicit pack quantity in the title or listing; for multipacks, multiply the number of packs by hinges per pack. Compare total package price divided by total hinges.",
 "gpc": {
  "brick_code": "10003191",
  "brick": "Hinges - Door",
  "class": "Door Hardware",
  "family": "Building Products",
  "segment": "Building Products"
 },
 "google_product_category": null,
 "taxonomy": {
  "gpc": {
   "brick_code": "10003191",
   "brick": "Hinges - Door",
   "class": "Door Hardware",
   "family": "Building Products",
   "segment": "Building Products"
  }
 },
 "fields": [
  {
   "key": "hinge_height_mm",
   "label": "Hinge height",
   "type": "number",
   "unit": "mm",
   "values": null,
   "why_it_matters": "Must match the door and frame hardware; larger hinges can suit heavier or larger doors."
  },
  {
   "key": "hinge_type",
   "label": "Hinge type",
   "type": "enum",
   "unit": null,
   "values": [
    "plain bearing",
    "ball bearing",
    "spring",
    "pivot",
    "tee",
    "bands and gudgeons",
    "other",
    "unknown"
   ],
   "why_it_matters": "Bearing and mechanism affect smoothness, load handling, and whether the door self-closes."
  },
  {
   "key": "corner_radius_mm",
   "label": "Corner radius",
   "type": "enum",
   "unit": null,
   "values": [
    "square",
    "6.35",
    "15.875",
    "other",
    "unknown"
   ],
   "why_it_matters": "Must match the mortise in the door and frame for a proper fit."
  },
  {
   "key": "material",
   "label": "Material",
   "type": "string",
   "unit": null,
   "values": null,
   "why_it_matters": "Affects strength, corrosion resistance, and expected service life."
  },
  {
   "key": "finish",
   "label": "Finish",
   "type": "string",
   "unit": null,
   "values": null,
   "why_it_matters": "Determines appearance and can affect corrosion resistance."
  },
  {
   "key": "adjustable",
   "label": "Adjustable",
   "type": "boolean",
   "unit": null,
   "values": null,
   "why_it_matters": "Adjustment can help correct door alignment without removing the hinge."
  },
  {
   "key": "pack_count",
   "label": "Hinges per package",
   "type": "number",
   "unit": "each",
   "values": null,
   "why_it_matters": "Needed to calculate the comparable price per hinge."
  },
  {
   "key": "screws_included",
   "label": "Screws included",
   "type": "boolean",
   "unit": null,
   "values": null,
   "why_it_matters": "Included matching screws can avoid a separate purchase and simplify installation."
  }
 ],
 "minimum_spec": {
  "description": "For a typical residential door, a standard metal butt hinge at least 89 mm (3.5 in) tall is a practical baseline. Its corner shape must match the door and frame mortises; plain-bearing hinges are generally sufficient for ordinary interior use.",
  "rules": [
   {
    "key": "hinge_height_mm",
    "op": ">=",
    "value": 89
   }
  ]
 },
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  "material",
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  "adjustable",
  "hinge_height_mm"
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  "name": "Design House Design House 6-Pack 4\" H x .625\" Radius Butterfly Interior/Exterior Door Hinges, Brushed Chrome",
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  "retailer": "walmart"
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}