34 Pa. Code § 33.314. Excavations, more than 15 feet in depth and not more than 42 inches in width.

§ 33.314. Excavations, more than 15 feet in depth and not more than 42 inches in width.

In soil of all kinds, timber shall be used as follows:
   (1)  Uprights. Two by 6 inch close sheeting.
   (2)  Stringers. Four by 12 inch planks spaced vertically not to exceed four feet center line to center line.
   (3)  Cross braces. Four by 12 inch planks spaced horizontally not to exceed 6 feet center line.

Cross References

   This section cited in 34 Pa. Code §  33.319 (relating to tables).

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