Lamson & Sessions is a leading producer of thermoplastic enclosures, fittings, wiring outlet boxes and conduit for the electrical, telecommunications, consumer, power and waste-water markets. The company's core competency in thermoplastic processing is the common tie through its three business segments: Carlon, Lamson Home Products (LHP) and PVC Pipe.

• See also:
• Masterformat 2004
• 26 05 33 - Raceway and Boxes for Electrical Systems
• 26 27 16 - Electrical Cabinets and Enclosures
• 26 27 19 - Multi-Outlet Assemblies
• 26 27 23 - Indoor Service Poles
• 26 27 26 - Wiring Devices
• 26 50 00 - LIGHTING
• Masterformat 1995
• 16130 - Raceway and Boxes
• 16140 - Wiring Devices
• 16500 - Lighting