Cal. Code Regs. Tit. 8, div. 1, ch. 4, subch. 7, grp. 6, art. 37, tbl. G-1 - Guard Materials

State Regulations
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Material	A Clearance from moving part at all points	B Largest mesh or opening allowable	C Minmum gauge (U.S. Standard) or thickness

	(See Fig. G-2)	(See Fig. G-1)

	Inches	Inches	Gauge/Inches
Woven wire ..........................	Under 2 ..........................	3/8..........................	No. 16
	2-4..........................	1/2..........................	No. 16
	4-15..........................	2..........................	No. 12
Expanded metal ..........................	Under 4..........................	1/2 ..........................	No. 18
	4-15..........................	2..........................	No. 13
Perforated metal ..........................	Under 4..........................	1/2..........................	No. 20
	4-15..........................	2..........................	No. 14
Sheet metal ..........................	Under 4..........................	..........................	No. 22
	4-15..........................	..........................	No. 22
Plastic ..........................	Under 4..........................	1/2..........................	*
	4-15..........................	2..........................	*
Plywood or equivalent ..........................	Under 4..........................	..........................	⁵/₁₆
Plywood or equivalent ..........................	4-15..........................	..........................	⁵/₁₆
Solid wood ..........................	Under 4..........................	..........................	1
Solid wood ..........................	4-15..........................	..........................	1
Wood or metal strip crossed ..........................	Under 4..........................	3/8..........................	Metal No. 16 Wood 3/4
	4-15..........................	2..........................	Metal No. 16 Wood 3/4
Wood or metal strip crossed ..........................	Under 4..........................	1/2..........................	Metal No. 16 Wood 3/4
	4-15..........................	1..........................	Metal No. 16 Wood 3/4
Standard rail ..........................	Min. 15..........................	..........................	..........
	Max. 20..........................	..........................	..........

Other materials that meet the strength requirements of this table and provide equivalent protection may be used.
^* Tensile strength of 10,000 lb/in²

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Notes

Cal. Code Regs. Tit. 8, div. 1, ch. 4, subch. 7, grp. 6, art. 37, tbl. G-1

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