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e-CFR data is current as of January 19, 2021

Title 29Subtitle BChapter XVIIPart 1915Subpart G → §1915.118


Title 29: Labor
PART 1915—OCCUPATIONAL SAFETY AND HEALTH STANDARDS FOR SHIPYARD EMPLOYMENT
Subpart G—Gear and Equipment for Rigging and Materials Handling


§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 membersLight duty (Up to 25 pounds per square foot)—Height in feetHeavy 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 × 43 × 4 or 2 × 64 × 43 × 44 × 44 × 6
Bearers (in inches)2 × 62 × 62 × 62 × 82 × 82 × 10
Ledgers (in inches)2 × 62 × 62 × 62 × 82 × 82 × 8
Stringers (not supporting bearers) (in inches)1 × 61 × 61 × 61 × 61 × 61 × 6
Braces (in inches)1 × 41 × 61 × 61 × 61 × 61 × 6
Pole spacing—longitudinally (in feet)712 712 712 777
Pole spacing—transversely (in feet)612 min712 min812 min612 1010
Ledger spacing—vertically (in feet)777412 412 412

Table E-2—Specifications for Side Rails of Ladders

Length (in feet)Cross section (in inches)
At endsAt center
15178 × 234 178 × 334
16178 × 234 178 × 334
18178 × 3178 × 4
20178 × 3178 × 4
24178 × 3178 × 412

Table E-3—Specifications for the Construction of Horses

Structural membersHeight in feet
≤10>10≤1616≤20
   inchesinchesinches
Legs2 × 43 × 44 × 6
Bearers or headers2 × 62 × 84 × 6
Crossbraces2 × 42 × 42 × 6
   or   
   1 × 8
Longitudinal braces2 × 42 × 62 × 6

Table E-4—Safe Center Loads for Scaffold Plank of 1,100 Pounds Fibre Stress

Span in feetLumber dimensions in inches
ABABABABAB
   2 × 10158 × 912 2 × 12158 × 1112 3 × 8258 × 712 3 × 10258 × 912 3 × 12258 × 1112
6256   309   526   667   807
8192   232   395   500   605
10153   186   316   400   484
12128   155   263   333   404
14110   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 clipsMinimum spacing, inches
Drop forgedOther material
(1)
12 343
58 34334
34 45412
78 45514
1466
118 56634
114 57712
138 67814
112 689

1Three clips shall be used on wire size less than 12 -inch diameter.

Table G-2—Maximum Allowable Wear at Any Point of Link

Chain size in inchesMaximum allowable wear in fraction of inches
14 ( 932 ) 364
38 564
12 764
58 964
34 532
78 1164
1 316
118 732
114 14
138 932
112 516
134 1132

[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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