Pennsylvania Code
Title 34 - LABOR AND INDUSTRY
Part I - Department of Labor and Industry
Chapter 21 - LADDERS
CONSTRUCTION MATERIALS
Section 21.22 - Compensation for large knots
Universal Citation: 34 PA Code ยง 21.22
Current through Register Vol. 54, No. 38, September 21, 2024
The method of calculating the depth of side rail to determine equivalent strength, assuming the thickness remains constant shall be as follows:
Where D1 = depth of side rail of equivalent strength.
D1 = minimum depth permitted.
Ke = size of knot adjacent to the edge of the wide face when larger
than 1/12 the depth and not greater than 1/6 the depth.
Disclaimer: These regulations may not be the most recent version. Pennsylvania may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.
