{
 "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": "t-slot-cantilever-shelf-plates",
 "name": "Cantilever shelf plates for 15-series posts: 8 to 16 in reach",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Framing",
 "year": null,
 "question": "How do I hang a shelf off a single 1515 post?",
 "tags": [
  "shelf bracket",
  "cantilever",
  "t-slot",
  "15 series",
  "workbench",
  "1515"
 ],
 "aliases": [
  "t slot cantilever shelf",
  "1515 shelf bracket"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 4,
 "url": "https://xemstudio.com/objects/t-slot-cantilever-shelf-plates/",
 "sheet_txt": "https://xemstudio.com/objects/t-slot-cantilever-shelf-plates/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design: a ¼ in triangular plate: its vertical leg bolts to the post, its top edge carries a 1515 shelf rail; 5/16-18 holes on the rail centre lines",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "One plate each side of the rail, or one on the outside; the rail then carries a shelf board."
  ],
  "table": {
   "columns": [
    "reach_in",
    "plate_in",
    "holes"
   ],
   "rows": [
    [
     8,
     0.25,
     5
    ],
    [
     10,
     0.25,
     5
    ],
    [
     12,
     0.25,
     5
    ],
    [
     16,
     0.25,
     5
    ]
   ]
  }
 },
 "sheet_text": "Cantilever shelf plates for 15-series posts: 8 to 16 in reach — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/t-slot-cantilever-shelf-plates/  (CC BY 4.0)\nBasis: Xem Studio design: a ¼ in triangular plate: its vertical leg bolts to the post, its top edge carries a 1515 shelf rail; 5/16-18 holes on the rail centre lines\nCatalog version: 2026-10-20\n\nSizes: see table below\n- One plate each side of the rail, or one on the outside; the rail then carries a shelf board.\n\nreach_in  plate_in  holes\n8  0.25  5\n10  0.25  5\n12  0.25  5\n16  0.25  5\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- 80/20: 15 series T-slot profiles and fasteners (1.5 in rail, 5/16-18 hardware) — web — maker's catalogue; numbers cited — https://8020.net/1515.html\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 4 parts): https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/index.json\nAPI: https://xemstudio.com/api/geometry?object=t-slot-cantilever-shelf-plates\n",
 "sources": [
  {
   "publisher": "80/20",
   "title": "15 series T-slot profiles and fasteners (1.5 in rail, 5/16-18 hardware)",
   "url": "https://8020.net/1515.html",
   "formats": [
    "web"
   ],
   "license": "maker's catalogue; numbers cited",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "1515-t-slot-extrusion-inch",
  "slide-in-t-nuts",
  "socket-head-cap-screws-inch",
  "button-head-socket-screws-inch",
  "t-slot-corner-brackets"
 ],
 "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": "Load?",
   "a": "Depends on the plate material: print it for light duty or cut it from ¼ in aluminium plate."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "cantilever-plate-8in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-8in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-8in.stl",
   "note": "8 in cantilever shelf plate, ¼ in thick: two holes on the post, three under the shelf rail (5 Ø8.73)"
  },
  {
   "file": "cantilever-plate-10in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-10in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-10in.stl",
   "note": "10 in cantilever shelf plate, ¼ in thick: two holes on the post, three under the shelf rail (5 Ø8.73)"
  },
  {
   "file": "cantilever-plate-12in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-12in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-12in.stl",
   "note": "12 in cantilever shelf plate, ¼ in thick: two holes on the post, three under the shelf rail (5 Ø8.73)"
  },
  {
   "file": "cantilever-plate-16in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-16in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-cantilever-shelf-plates/cantilever-plate-16in.stl",
   "note": "16 in cantilever shelf plate, ¼ in thick: two holes on the post, three under the shelf rail (5 Ø8.73)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/t-slot-cantilever-shelf-plates/index.md"
}