Chalk Lines & Chalk

What is a chalk line used for?
Chalk lines are used to create straight, visible guidelines on surfaces such as walls or floors. By stretching a taut string coated in chalk across the desired area and snapping it, you leave a sharp, reliable mark to guide cuts, alignments or layouts.

How do I use a chalk line?
To use a chalk line, first mark your start and end points. Secure or hold one end of the chalk line on the first mark and pull the line taut to the second mark. Snap the line against the surface to leave a crisp, visible guide.

Can I use a chalk line tool on outdoor surfaces?
Yes, but note that rain or extreme weather can wash away or fade the line. Consider a more permanent chalk for outdoor jobs.

How do I ensure a crisp, straight line?
Pull the string taut, hold it firmly at both ends and snap it cleanly against the surface.