Cal. Code Regs. Tit. 8, div. 1, ch. 4, subch. 4, app B, Plate B-30-a - Safe Lateral Strength and Required Penetration of Common Wire Nails

Driven Perpendicular to Grain of the Wood

							Loads (pounds)
Size of nail	Standard length (inches)		Wire gauge		Penetration required (inches)		Douglas fir or southern pine	Redwood	Other species
6d ..........................		2		11 1/2		1	70	58	As
8d ..........................		2 1/2		10 1/4		1 1/4	100	82	determined
10d ..........................		3		9		1 1/2	120	98	by the
12d ..........................		3 1/4		9		1 5/8	130	106	enforcing
16d ..........................		3 1/2		8		1 5/8	160	123	agency
20d ..........................		4		6		2	190	155
30d ..........................		4 1/2		5		2 1/4	230	188
40d ..........................		5		4		2 1/2	270	220
50d ..........................		5 1/2		3		2 3/4	310	250
60d ..........................		6		2		3	360	295

(2) Safe Resistance to Withdrawal. A wire nail driven perpendicular to grain of the wood shall not be subjected to a greater load, tending to cause withdrawal, than the safe resistance of the nail to withdrawal, as set forth in Plate B-30-b.

Nails driven parallel to grain of the wood shall not be allowed for resisting withdrawal forces.

Notes

Cal. Code Regs. Tit. 8, div. 1, ch. 4, subch. 4, app B, Plate B-30-a