{
 "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-bench-tops",
 "name": "T-slot bench tops for 15-series frames: 24 × 30 to 36 × 96 in, ¾ and 1 in thick",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Framing",
 "year": null,
 "question": "How do I bolt a worktop to a 1515 T-slot frame?",
 "tags": [
  "bench top",
  "worktop",
  "table top",
  "t-slot",
  "15 series",
  "workbench",
  "1515"
 ],
 "aliases": [
  "t slot workbench top",
  "80/20 bench top holes",
  "1515 frame table top"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 14,
 "url": "https://xemstudio.com/objects/t-slot-bench-tops/",
 "sheet_txt": "https://xemstudio.com/objects/t-slot-bench-tops/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design: flat panels whose holes sit on the centre lines of a 1.5 in rail running under every edge (0.75 in in from each edge), counterbored for a 5/16-18 socket head cap screw into a slide-in T-nut",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Edges flush with the frame's outer faces when the frame's outside size equals the top. Holes no more than 12 in apart along each edge; add a cross rail for longer spans and drill its holes from the frame."
  ],
  "table": {
   "columns": [
    "size_in",
    "thickness_in",
    "holes"
   ],
   "rows": [
    [
     "24 × 30",
     0.75,
     10
    ],
    [
     "24 × 30",
     1,
     10
    ],
    [
     "24 × 48",
     0.75,
     12
    ],
    [
     "24 × 48",
     1,
     12
    ],
    [
     "30 × 48",
     0.75,
     14
    ],
    [
     "30 × 48",
     1,
     14
    ],
    [
     "30 × 60",
     0.75,
     16
    ],
    [
     "30 × 60",
     1,
     16
    ],
    [
     "30 × 72",
     0.75,
     18
    ],
    [
     "30 × 72",
     1,
     18
    ],
    [
     "36 × 72",
     0.75,
     18
    ],
    [
     "36 × 72",
     1,
     18
    ],
    [
     "36 × 96",
     0.75,
     22
    ],
    [
     "36 × 96",
     1,
     22
    ]
   ]
  }
 },
 "sheet_text": "T-slot bench tops for 15-series frames: 24 × 30 to 36 × 96 in, ¾ and 1 in thick — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/t-slot-bench-tops/  (CC BY 4.0)\nBasis: Xem Studio design: flat panels whose holes sit on the centre lines of a 1.5 in rail running under every edge (0.75 in in from each edge), counterbored for a 5/16-18 socket head cap screw into a slide-in T-nut\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Edges flush with the frame's outer faces when the frame's outside size equals the top. Holes no more than 12 in apart along each edge; add a cross rail for longer spans and drill its holes from the frame.\n\nsize_in  thickness_in  holes\n24 × 30  0.75  10\n24 × 30  1.0  10\n24 × 48  0.75  12\n24 × 48  1.0  12\n30 × 48  0.75  14\n30 × 48  1.0  14\n30 × 60  0.75  16\n30 × 60  1.0  16\n30 × 72  0.75  18\n30 × 72  1.0  18\n36 × 72  0.75  18\n36 × 72  1.0  18\n36 × 96  0.75  22\n36 × 96  1.0  22\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, 14 parts): https://xemstudio.com/files/hardware/t-slot-bench-tops/index.json\nAPI: https://xemstudio.com/api/geometry?object=t-slot-bench-tops\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": "Which screw?",
   "a": "5/16-18 × 1¼ in (¾ in top) or 1½ in (1 in top) socket head cap screws into 15-series slide-in T-nuts."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "bench-top-24x30x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x30x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x30x0.75in.stl",
   "note": "24 × 30 × 0.75 in top: 10 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-24x30x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x30x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x30x1in.stl",
   "note": "24 × 30 × 1 in top: 10 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-24x48x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x48x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x48x0.75in.stl",
   "note": "24 × 48 × 0.75 in top: 12 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-24x48x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x48x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-24x48x1in.stl",
   "note": "24 × 48 × 1 in top: 12 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-30x48x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x48x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x48x0.75in.stl",
   "note": "30 × 48 × 0.75 in top: 14 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-30x48x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x48x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x48x1in.stl",
   "note": "30 × 48 × 1 in top: 14 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-30x60x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x60x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x60x0.75in.stl",
   "note": "30 × 60 × 0.75 in top: 16 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-30x60x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x60x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x60x1in.stl",
   "note": "30 × 60 × 1 in top: 16 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-30x72x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x72x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x72x0.75in.stl",
   "note": "30 × 72 × 0.75 in top: 18 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-30x72x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x72x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-30x72x1in.stl",
   "note": "30 × 72 × 1 in top: 18 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-36x72x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x72x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x72x0.75in.stl",
   "note": "36 × 72 × 0.75 in top: 18 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-36x72x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x72x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x72x1in.stl",
   "note": "36 × 72 × 1 in top: 18 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-36x96x0.75in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x96x0.75in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x96x0.75in.stl",
   "note": "36 × 96 × 0.75 in top: 22 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  },
  {
   "file": "bench-top-36x96x1in",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x96x1in.step",
   "stl": "https://xemstudio.com/files/hardware/t-slot-bench-tops/bench-top-36x96x1in.stl",
   "note": "36 × 96 × 1 in top: 22 Ø8.73 holes with Ø13.5 × 8.4 counterbores on the rail centre lines (0.75 in in), ≤ 12 in apart"
  }
 ],
 "markdown": "https://xemstudio.com/objects/t-slot-bench-tops/index.md"
}