29 CFR 1915.118

Regulations last checked for updates: Oct 17, 2024

Title 29 - Labor last revised: Oct 09, 2024

View all text of Subpart G [§ 1915.111 - § 1915.120]

§ 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
Structural members	≤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

Table E-2—Specifications for Side Rails of Ladders

Length (in feet)	Cross section (in inches)
Length (in feet)	At ends	At center
15	1 7/8 × 2 3/4	1 7/8 × 3 3/4
16	1 7/8 × 2 3/4	1 7/8 × 3 3/4
18	1 7/8 × 3	1 7/8 × 4
20	1 7/8 × 3	1 7/8 × 4
24	1 7/8 × 3	1 7/8 × 4 1/2

Table E-3—Specifications for the Construction of Horses

Structural members	Height in feet
Structural members	≤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
Span in feet	A	B	A	B	A	B	A	B	A	B
	2 × 10	1 5/8 × 9 1/2	2 × 12	1 5/8 × 11 1/2	3 × 8	2 5/8 × 7 1/2	3 × 10	2 5/8 × 9 1/2	3 × 12	2 5/8 × 11 1/2
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
Improved plow steel, rope diameter, inches	Drop forged	Other material	Minimum spacing, inches
( ¹)
1/2	3	4	3
5/8	3	4	3 3/4
3/4	4	5	4 1/2
7/8	4	5	5 1/4
1	4	6	6
1 1/8	5	6	6 3/4
1 1/4	5	7	7 1/2
1 3/8	6	7	8 1/4
1 1/2	6	8	9

¹ Three clips shall be used on wire size less than 1/2-inch diameter.

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
1 1/8	7/32
1 1/4	1/4
1 3/8	9/32
1 1/2	5/16
1 3/4	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]

authority: 33 U.S.C. 941; 29 U.S.C. 653,655,657; Secretary of Labor's Order No. 12-71 (36 FR 8754); 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 (72 FR 31160), 4-2010 (75 FR 55355), 1-2012 (77 FR 3912), or 8-2020 (85 FR 58393); 29 CFR part 1911; and 5 U.S.C. 553,as

source: 47 FR 16986, Apr. 20, 1982, unless otherwise noted.

cite as: 29 CFR 1915.118