What is the wall thickness classification of Type L copper tubing?

Type L copper tubing is classified as medium wall. This classification indicates that the tubing has a wall thickness that is greater than that of Type M, which is considered thin wall, but less than that of Type K, which is regarded as thick wall tubing.

Type L tubing is designed for applications that require a balance between strength and flexibility, making it suitable for both residential and commercial plumbing systems. Its medium wall thickness provides good pressure ratings while still being manageable to work with during installation.

This classification is essential for plumbers to understand, as the choice of tubing thickness affects not only the structural integrity and durability of the system but also its compatibility with different fittings and fixtures.