Sec. 23-5.15. Lean-to scaffolds

(a) Limited use of lean-to scaffolds.

Lean-to scaffolds shall not be used or erected to a height exceeding 10 feet above the ground, grade or equivalent surface. Lean-to scaffolds shall be used only as light duty scaffolds.

(b) Scaffold construction.

The spread between the legs of any lean-to scaffold, measured at the feet, shall be at least equal to one-half the height of such scaffold. The maximum span for two-inch by nine-inch planking shall be 10 feet and the maximum span for one and one-quarter inch by nine-inch planking shall be six feet. The minimum sizes of members of lean-to scaffold supports shall be as specified in Table XV of this Subpart.

TABLE XV MINIMUM SPECIFICATIONS FOR LEAN–TO SCAFFOLDS

Members	Dimensions
Horizontal bearers	2″ × 6″
Legs	2″ × 4″
Braces between legs	1″ × 6″
Gusset braces at top of legs	1″ × 6″
Half diagonal braces	1″ × 6″
Maximum spans of planking:
2″ × 9″	10 ft.
1 ¼ ″ × 9″	6 ft.