Residential Garage Door Installation Details with Prefabricated Wood I-Joists

Installing garage doors in homes with prefabricated wood I-joist floor systems requires careful attention to structural integrity and proper attachment methods.

This publication is designed for: contractors, builders, engineers, architects

This publication provides detailed specifications and installation methods for attaching garage door hardware to I-joist bottom flanges using lag screws and steel angles. It covers scenarios both with and without direct-attached gypsum ceilings, and addresses configurations where garage door tracks run either parallel or perpendicular to the I-joists. Tables and diagrams with installation guidance are included.

Key sections include:

• Garage door track parallel to I-joists

• Garage door track perpendicular to I-joists

• Material specifications for steel angles and lumber blocks

• Fastener requirements and installation procedures

Published by APA — The Engineered Wood Association.