PVC Schedule 40 is a type of polyvinyl chloride (PVC) pipe commonly used in plumbing, irrigation, and other applications where the transport of fluids is necessary. The "Schedule 40" designation refers to the thickness of the pipe's walls, which is standardized by the American National Standards Institute (ANSI) and the National Sanitation Foundation (NSF).

PVC Schedule 40 pipes have a thicker wall compared to PVC Schedule 80 pipes, making them suitable for a wide range of applications including residential plumbing, drainage systems, and irrigation. They are lightweight, easy to install, and resistant to corrosion, chemicals, and abrasion. PVC Schedule 40 pipes are also relatively inexpensive compared to other piping materials, making them a popular choice for various construction projects. They are available in a range of sizes to accommodate different plumbing and piping needs.

PVC Schedule 40 Conduit Calculators:

• PVC 40 Conduit Installation Time: Computes the Estimated Install Time for PVC Schedule 40 conduit based on the conduit size, length of conduit and level of difficulty.
• PVC 40 Conduit Installation Length: Computes the Length of PVC Schedule 40 conduit installed based on an installation time period and level of difficulty. 
• PVC 40 Conduit Weight: Compute the weight of PVC Schedule 40 conduit or pipe based on size, length and whether it's PVC or CPVC.
• Rolling Offset: Computes the run and travel lengths in a rolling offset