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§ 1915.118 Tables.
The provisions of this section apply to ship repairing, shipbuilding and shipbreaking.
Table E-1—Dimensions and Spacing of Wood Independent-Pole Scaffold Members
| Structural members | Light duty (Up to 25 pounds per square foot)—Height in feet | Heavy duty (25 to 75 pounds per square foot)—Height in feet | ||||
|---|---|---|---|---|---|---|
| ≤24 | >24≤40 | >40≤60 | ≤24 | >24≤40 | >40≤60 | |
| Poles or uprights (in inches) | 2 × 4 | 3 × 4 or 2 × 6 | 4 × 4 | 3 × 4 | 4 × 4 | 4 × 6 |
| Bearers (in inches) | 2 × 6 | 2 × 6 | 2 × 6 | 2 × 8 | 2 × 8 | 2 × 10 |
| Ledgers (in inches) | 2 × 6 | 2 × 6 | 2 × 6 | 2 × 8 | 2 × 8 | 2 × 8 |
| Stringers (not supporting bearers) (in inches) | 1 × 6 | 1 × 6 | 1 × 6 | 1 × 6 | 1 × 6 | 1 × 6 |
| Braces (in inches) | 1 × 4 | 1 × 6 | 1 × 6 | 1 × 6 | 1 × 6 | 1 × 6 |
| Pole spacing—longitudinally (in feet) | 7 1⁄2 | 7 1⁄2 | 7 1⁄2 | 7 | 7 | 7 |
| Pole spacing—transversely (in feet) | 6 1⁄2 min | 7 1⁄2 min | 8 1⁄2 min | 6 1⁄2 | 10 | 10 |
| Ledger spacing—vertically (in feet) | 7 | 7 | 7 | 4 1⁄2 | 4 1⁄2 | 4 1⁄2 |