T-slot bench tops for 15-series frames: 24 × 30 to 36 × 96 in, ¾ and 1 in thick — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/t-slot-bench-tops/  (CC BY 4.0)
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
Catalog version: 2026-10-20

Sizes: see table below
- 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.

size_in  thickness_in  holes
24 × 30  0.75  10
24 × 30  1.0  10
24 × 48  0.75  12
24 × 48  1.0  12
30 × 48  0.75  14
30 × 48  1.0  14
30 × 60  0.75  16
30 × 60  1.0  16
30 × 72  0.75  18
30 × 72  1.0  18
36 × 72  0.75  18
36 × 72  1.0  18
36 × 96  0.75  22
36 × 96  1.0  22

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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

Free files (CC BY 4.0, Xem Studio; STEP + STL, 14 parts): https://xemstudio.com/files/hardware/t-slot-bench-tops/index.json
API: https://xemstudio.com/api/geometry?object=t-slot-bench-tops