James Lever & Sons are manufacturers and suppliers of high-quality builders lines, designed for marking out and alignment applications within construction and trade environments.

Our builders lines are available in both nylon and polypropylene constructions to suit different site requirements:

- Nylon Builders Lines
– Available in white and black. Suitable for use as builders line, chalk line, mason line, fishing line and general-purpose applications.
- Polypropylene Builders Lines – Supplied in highly visible orange for marking out and alignment work on site.

Lightweight, durable and resistant to moisture, our builders lines are suitable for both indoor and outdoor use. Designed for clear visibility and reliable tensioning, they are widely specified by professional tradespeople and contractors.

Combining durable synthetic fibre construction with consistent supply, our builders lines support professional trades with reliable marking and alignment solutions.