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]