We’re going to show you how to install plastic (PVC) rigid conduit rather than metal conduit. Plastic conduit is less expensive, lighter and much easier to work with. Here are great tips from commercial electrician Jason Bouchard to help you make wiring runs with conduit.
Schedule 40 vs. 80
Schedule 40 conduit is cheaper and has a larger inside diameter, so it’s easier to pull wires through it. The plastic on Schedule 80 is thicker, but the conduit has the same outside diameter as 40, so the inside diameter is smaller. Always install Schedule 80 conduit in high-traffic areas or any other areas where it could get damaged, like behind your woodpile. By the way, the fittings (such as adapters and turns) are the same for each type.