Elevations must be determined for either the top or bottom of the tray run. Compute precise cable tray offset geometry, run lengths, and diagonal travel dimensions for tray routing elevation changes. Calculate true diagonal travel lengths, horizontal runs, and bend geometry for ladder. This publication is intended as a practical guide for the proper and safe* installation of cable ladder systems, cable tray systems, channel support systems and associated supports. Cable ladder systems and cable tray systems shall be manufactured in accordance with BS EN 61537, channel support. What is the Cable Tray Slope & Fabrication Calculator? The Cable Tray Slope & Fabrication Calculator is a field-ready tool for electrical construction workers who need to quickly calculate V-cut dimensions, bolt hole positions, slope length, and hanger spacing for inclined cable tray installations. All rights, including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American copyright conventions. Our knowledgeable production team works closely with each customer to provide quality solutions based on your schedule and budget. We want each and every experience with our. us-trations without notice.