Our larger mounts (6+ modules) are designed to be installed on 6”, 8”, or 10” NPS steel pipes with Schedule 40 or 80. The National Pipe Standard requires the outer diameters of these pipes are 6.625”, 8.625”, and 10.75” respectively. The pipe schedule varies the gauge or thickness of the pipe. You can use the project calculator to determine what is required for your array using specific site inputs.