Description SPAN AND PIPE CHART Refer to the following table to see how size impacts the East-West span between foundations. The table complies with ASCE 7-16 structural code. Values are based on 72-cell modules in Wind Exposure Category B.Schedule 40 Grade B Pipe3” pipe: OD 3.5”, wall thickness 0.216”, 35ksi yield strength2” pipe: OD 2.38”, wall thickness 0.154”, 35ksi yield strengthMechanical Tubing3” Tubing: OD 3.5”, wall thickness 0.165”, 45ksi yield strength2” Tubing: OD 2.375”, wall thickness 0.109”, 50ksi yield strengthLocally-sourced 2” or 3” Schedule 40 Grade B pipe and mechanical tubing help you save on freight, while still spanning up to 18’ between vertical piers.IronRidge Ground Mount Installation ManualIron Ridge Ground Mount Data Sheet
