Pennsylvania Code
Title 34 - LABOR AND INDUSTRY
Part I - Department of Labor and Industry
Chapter 47 - MISCELLANEOUS PROVISIONS
Subchapter G - RAILINGS, TOEBOARDS, OPEN-SIDED FLOORS,PLATFORMS AND RUNWAYS
RAILINGS FOR ALL INSTALLATIONS
Section 47.235 - Wood railings

(a) Top rails. Wood railings shall be not less than 2 inches by 4 inches finished size. Reference should be made to Plate 3-B of the Appendix of this Subchapter.

(b) Alternate type. A top railing of 1 inch by 4 inches finished size is acceptable if another board of not less than 1 inch by 4 inches finished size is securely fastened to the sides of the posts and to the top railing at approximately right angles to the top railing. Reference should be made to Plate 3-C of the Appendix.

(c) Midrails. Middle railings shall be not less than 1 inch by 4 inches finished size.

(d) Posts. Wood posts or uprights shall be at least equal in section to 2 inches by 4 inches finished size. Specially formed metal or cast posts, used in connection with wood railings, are acceptable if they meet the rigidity and strength requirements specified for these posts in §§ 47.233-47.234 (relating to pipe railings; metal railings other than pipe). Wood posts which are an integral part of the under or over structure are acceptable if they meet the spacing and strength requirements specified in §§ 47.232-47.233 (relating to construction; pipe railings.) Reference should be made to Plate 3 of the Appendix.