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A 2x2 stool base with a threaded steel rod running up through the seat — spin the seat to change the height, no gas cylinder required.
| Part | Qty | T × W × L | Material | ✓ |
|---|---|---|---|---|
| Top stretchers Both ends cut at 10° off square, ends NOT parallel, longest point to longest point. | 2 | 1 1/2" × 1 1/2" × 12 1/2" | 2x2 | ☐ |
| Top mounting plate Corners clipped at 45°. | 1 | 3/4" × 8 1/2" × 8 1/2" | 3/4" plywood scrap | ☐ |
| Legs Both ends cut at 10° off square, long point to short point, ends ARE parallel. | 4 | 1 1/2" × 1 1/2" × 23 1/2" | 2x2 | ☐ |
| Footrest cross supports Both ends cut at 45°, ends NOT parallel, longest point to longest point. Notched half-lap where the pairs cross. | 4 | 1 1/2" × 1 1/2" × 9 5/8" | 2x2 | ☐ |
| Seat 12" diameter round. | 1 | 1 1/2" × 12" × 12" | Laminated round blank | ☐ |
| Item | Qty | ✓ |
|---|---|---|
| 2x2 board, 8 ft (Pine) | 2 each | ☐ |
| 3/4" plywood scrap, for top mounting plate | 1 each | ☐ |
| 12" round seat blank, 1-1/2" thick Laminate from 1x12 and plywood scraps glued face to face, or buy a pre-cut round blank. | 1 each | ☐ |
| 5/8" all-thread rod, 18" | 1 each | ☐ |
| 5/8" flange or top plate Can be improvised from scrap steel and welded nuts if you have access to a welder. | 1 each | ☐ |
| 5/8" nuts and washers | 4 each | ☐ |
| Pocket-hole screws, 2-1/2" | 20 each | ☐ |
| Wood glue | 2 oz | ☐ |
Overall cost: $$. Lumber varies by region, species, and season, so we give a band rather than a figure.