This document outlines the key requirements for cable tray layout, installation, and fireproofing in industrial and commercial environments. Route Planning and Layout PrinciplesALTURA is one of the leading Cable tray manufacturer in Qatar providing smooth and easy pulling of cable from one point to another to BS EN 61537:2007. We provide: Our standard material used in the production of cable support systems is pre-galvanized steel. Our factory is located at Birkat Al-Awamer, Doha-Qata and is. UL Listed Systems Concrete Wall - C-AJ-4056 3 HR F-Rating, 3/4 HR T-Rating Gypsum Wall - W-L-4037 1 HR and 2 HR F-Ratings, 0 HR and 1/2 HR T-Ratings For tray larger than 4” x 24”, or a tray style other than ladder tray call 1-800-328-1687 then option 8 to obtain a free engineering judgement letter.