29 CFR 1915.118 – Tables
Current as of: 2024 | Check for updates
|
Other versions
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 | 7 | 7 | 7 | 7 | 7 |
| Pole spacing—transversely (in feet) | 6 | 7 | 8 | 6 | 10 | 10 |
| Ledger spacing—vertically (in feet) | 7 | 7 | 7 | 4 | 4 | 4 |
Table E-2—Specifications for Side Rails of Ladders
| Length (in feet) | Cross section (in inches) | |
|---|---|---|
| At ends | At center | |
| 15 | 1 | 1 |
| 16 | 1 | 1 |
| 18 | 1 | 1 |
| 20 | 1 | 1 |
| 24 | 1 | 1 |
Table E-3—Specifications for the Construction of Horses
| Structural members | Height in feet | ||
|---|---|---|---|
| ?10 | >10?16 | 16?20 | |
| 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 | 1 | 2 × 12 | 1 | 3 × 8 | 2 | 3 × 10 | 2 | 3 × 12 | 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 | ||||||
(A)—Rough lumber.
(B)—Dressed lumber.
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) | |||
| 3 | 4 | 3 | |
| 3 | 4 | 3 | |
| 4 | 5 | 4 | |
| 4 | 5 | 5 | |
| 1 | 4 | 6 | 6 |
| 1 | 5 | 6 | 6 |
| 1 | 5 | 7 | 7 |
| 1 | 6 | 7 | 8 |
| 1 | 6 | 8 | 9 |
1 Three clips shall be used on wire size less than
Table G-2—Maximum Allowable Wear at Any Point of Link
| Chain size in inches | Maximum allowable wear in fraction of inches |
|---|---|
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 | |
| 1 |