29 CFR § 1915.118
Tables
July 28, 2023
§ 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) | 71⁄2 | 71⁄2 | 71⁄2 | 7 | 7 | 7 |
| Pole spacing—transversely (in feet) | 61⁄2 min | 71⁄2 min | 81⁄2 min | 61⁄2 | 10 | 10 |
| Ledger spacing—vertically (in feet) | 7 | 7 | 7 | 41⁄2 | 41⁄2 | 41⁄2 |
Table E–2—Specifications for Side Rails of Ladders
| Length (in feet) | Cross section (in inches) | |
|---|---|---|
| At ends | At center | |
| 15 | 17⁄8 × 23⁄4 | 17⁄8 × 33⁄4 |
| 16 | 17⁄8 × 23⁄4 | 17⁄8 × 33⁄4 |
| 18 | 17⁄8 × 3 | 17⁄8 × 4 |
| 20 | 17⁄8 × 3 | 17⁄8 × 4 |
| 24 | 17⁄8 × 3 | 17⁄8 × 41⁄2 |
Table E–3—Specifications for the Construction of Horses
| Structural members | Height in feet | ||
|---|---|---|---|
| ≤10 | >10≤16 | 16≤20 | |
| inches | inches | inches | |
| Legs | 2 × 4 | 3 × 4 | 4 × 6 |
| Bearers or headers | 2 × 6 | 2 × 8 | 4 × 6 |
| Crossbraces | 2 × 4 | 2 × 4 | 2 × 6 |
| or | |||
| 1 × 8 | |||
| Longitudinal braces | 2 × 4 | 2 × 6 | 2 × 6 |
Table E–4—Safe Center Loads for Scaffold Plank of 1,100 Pounds Fibre Stress
| Span in feet | Lumber dimensions in inches | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A | B | A | B | A | B | A | B | A | B | |
| 2 × 10 | 15⁄8 × 91⁄2 | 2 × 12 | 15⁄8 × 111⁄2 | 3 × 8 | 25⁄8 × 71⁄2 | 3 × 10 | 25⁄8 × 91⁄2 | 3 × 12 | 25⁄8 × 111⁄2 | |
| 6 | 256 | 309 | 526 | 667 | 807 | |||||
| 8 | 192 | 232 | 395 | 500 | 605 | |||||
| 10 | 153 | 186 | 316 | 400 | 484 | |||||
| 12 | 128 | 155 | 263 | 333 | 404 | |||||
| 14 | 110 | 133 | 225 | 286 | 346 | |||||
| 16 | 116 | 197 | 250 | 303 | ||||||
Table G–1—Number and Spacing of U-Bolt Wire Rope Clips
| Improved plow steel, rope diameter, inches | Number of clips | Minimum spacing, inches | |
|---|---|---|---|
| Drop forged | Other material | ||
| (1) | |||
| 1⁄2 | 3 | 4 | 3 |
| 5⁄8 | 3 | 4 | 33⁄4 |
| 3⁄4 | 4 | 5 | 41⁄2 |
| 7⁄8 | 4 | 5 | 51⁄4 |
| 1 | 4 | 6 | 6 |
| 11⁄8 | 5 | 6 | 63⁄4 |
| 11⁄4 | 5 | 7 | 71⁄2 |
| 13⁄8 | 6 | 7 | 81⁄4 |
| 11⁄2 | 6 | 8 | 9 |
Table G–2—Maximum Allowable Wear at Any Point of Link
| Chain size in inches | Maximum allowable wear in fraction of inches |
|---|---|
| 1⁄4(9⁄32) | 3⁄64 |
| 3⁄8 | 5⁄64 |
| 1⁄2 | 7⁄64 |
| 5⁄8 | 9⁄64 |
| 3⁄4 | 5⁄32 |
| 7⁄8 | 11⁄64 |
| 1 | 3⁄16 |
| 11⁄8 | 7⁄32 |
| 11⁄4 | 1⁄4 |
| 13⁄8 | 9⁄32 |
| 11⁄2 | 5⁄16 |
| 13⁄4 | 11⁄32 |
[47 FR 16986, Apr. 20, 1982, as amended at 61 FR 26351, May 24, 1996; 67 FR 44543, July 3, 2002; 76 FR 33610, June 8, 2011]
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