29 C.F.R. § 1915.118

Current through November 30, 2024

Section 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
	[LESS THAN EQUAL TO]24	[GREATER THAN]24[LESS THAN EQUAL TO]40	[GREATER THAN]40[LESS THAN EQUAL TO]60	[LESS THAN EQUAL TO]24	[GREATER THAN]24[LESS THAN EQUAL TO]40	[GREATER THAN]40[LESS THAN EQUAL TO]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
	[LESS THAN EQUAL TO]10	[GREATER THAN]10[LESS THAN EQUAL TO]16	16[LESS THAN EQUAL TO]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

(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)
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

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
11/8	7/32
11/4	1/4
13/8	9/32
11/2	5/16
13/4	11/32

29 C.F.R. §1915.118

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