CONSTRUCTION SAFETY ORDERS
CHAPTER 4, SUBCHAPTER 4, ARTICLE 25
Amend Section 1676 to read:
§1676. Job-Made Ladders.
(a) Job-made ladders shall be constructed for intended use. If a ladder is to provide the only means of access or exit from a working area for 25 or more employees, or simultaneous two-way traffic is expected, a double cleat ladder shall be installed.
NOTE: Cleats for job-made ladders are defined as crosspieces used by a person in ascending or descending a ladder. Cleats are also known as steps or rungs.
(b) Side rails, when of wood, shall be the equivalent of dressed Douglas fir "selected lumber", free from sharp edges and splinters, and shall not have knots, except for an occasional one less than 1/2-inch in diameter that appears only on the wide face and is at least 1/2-inch back from either edge.
If splicing of side rails is necessary to attain the required length, the splice shall develop the full strength of a continuous side rail of the same length.
Rungs Cleats of wood shall be clear, straight-grained and
absolutely free from knots of any size that appear in the narrow face. Knots appearing in
the wide faces of cleats shall not exceed a diameter of 1/4-inch. Rungs Cleats
shall be uniformly spaced within 1/4-inch tolerance, and not farther apart than 12-inches
measured from the tops of rungs cleats. The clear space in
the plane of the rungs cleats between the top of any rung
cleat and an obstruction above shall be at least 4 1/2-inches.
rungs cleats of ladders used only by hod carriers
and plaster tenders shall be uniformly spaced within 1/4-inch tolerance at not more than 9
inches measured from the tops of rungs cleats.
(l) Wood side rails of portable ladders shall be dressed on all sides and shall be free from sharp edges and splinters. Knots over 1/8 inch in diameter shall not appear in rungs. Knots shall not appear in the narrow faces of side rails, treads, or rungs.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.