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Modular heavy-duty garage shelving: build one ladder-style leg support per ~4 feet of run, span them with 2x4 shelf boards, and anchor to the wall. Any length, same two steps.
| Part | Qty | T × W × L | Material | ✓ |
|---|---|---|---|---|
| Uprights (per leg support) Multiply by the number of supports — one support per ~4 ft of run. | 2 | 1 1/2" × 3 1/2" × 72" | — | ☐ |
| Rungs / shelf supports (per leg support) One per shelf level; four gives four shelves. | 4 | 1 1/2" × 3 1/2" × 17" | — | ☐ |
| Shelf boards (per shelf) Cut to your run length — the source build ran 20-footers. | 4 | 1 1/2" × 3 1/2" × 96" | — | ☐ |
| Item | Qty | ✓ |
|---|---|---|
| 2x4, 10 ft Two per leg support — a 3-support unit needs 6. Scale up per the design: one support per ~4 ft of shelf run. | 6 each | ☐ |
| 2x4, 8 ft Four per shelf level: an 8-foot, 4-shelf unit uses 16. Buy longer boards for longer runs. | 16 each | ☐ |
| Self-tapping wood screws, #9 x 2-1/2", star drive Two per leg per shelf board. | 100 each | ☐ |
| Wood screws for wall anchoring, #10 x 3" Through the back uprights into studs. Not optional on a tall loaded rack. | 6 each | ☐ |
| Wood glue | 8 oz | ☐ |
Overall cost: $$. Lumber varies by region, species, and season, so we give a band rather than a figure.