29 C.F.R. § 1915.118 – Tables. | Midpage

29 C.F.R. § 1915.118

Tables.

Published Jun 8, 201176 FR 33610

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
(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

[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]