California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 4 - Construction Safety Orders
Appendix B - Handy Construction Data; Facts; and Information
Plate B-9 - Square Columns-Unbraced Rough Lumber-Not Surfaced

Universal Citation: 8 CA Code of Regs Plate B-9

Current through Register 2024 Notice Reg. No. 38, September 20, 2024

Suggested Maximum Loads in Pounds -- 1,000 Pounds per Square Inch Douglas Fir


	*SIZE OF COLUMN CROSS SECTION*
*Length in Feet*	*4"x4"*	*6"x6"*	*8"x8"*	*10"x10"*	*12"x12"*	*14"x14"*	*16"x16"*
5	15,300	36,000	64,000	100,000	144,000	196,000	256,000
6	14,600	35,400	64,000	100,000	144,000	196,000	256,000
7	13,500	34,900	63,400	100,000	144,000	196,000	256,000
8	11,800	34,100	62,900	100,000	144,000	196,000	256,000
9	9,600	33,000	62,300	98,900	144,000	196,000	256,000
10	7,800	31,500	61,500	98,400	144,000	196,000	256,000
11	6,400	29,400	60,200	97,600	142,400	196,000	256,000
12	5,400	26,700	58,700	96,700	141,700	194,200	256,000
14	use a	20,100	54,300	93,800	139,600	192,800	258,700
16	larger size	15,400	47,400	89,400	136,600	190,700	251,900
18		use a	38,400	83,100	132,200	187,300	249,300
20		larger size	31,100	74,200	126,100	183,000	246,000

1. Change without regulatory effect correcting error in Plate B-9 filed 5-28-91 pursuant to section 100, Title 1, California Code of Regulations (Register 91, No. 27).

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