How to use a chalk line

Shop for Chalk Lines

Step 1 – Pull out string line

The first thing you need to do after preparing your chalk line for use is to pull out the string a little way. This is easily done by holding on to the hook and gently pulling. (If you haven’t prepared your chalk line, see the page entitled: How to prepare a chalk line.

Step 2 – Attach hook

Your next step is to attach the hook to the far end of the object you wish to impart a line on to. The hook may be placed over a nail or screw, or simply hooked onto the object via its claws.

Step 3 – Extend string line

With the hook attached to the surface you wish to impart a line onto, extend the string line to the near side of your object, keeping the string line taut as you do.

Step 4 – Hold string line in place

By holding the line with your finger or by pressing down the tip of the chalk line, you can hold the string in place and keep it taut at the same time.

Step 5 – Pinch string half way

Once the string line is in position, grasp the string (with a finger and thumb) at a point roughly halfway between the hook and the box.

Step 6 – Lift string line

Whilst keeping the string line taut, with your finger and thumb, lift the string line about 10-15cm (4-6 inches) off the surface of your object.

Step 7 – Release string line (“snap the line”)

Release the string line immediately and it will “snap” back down to the surface (like twanging the string of a bow and arrow). Through this motion, the string line will impart its chalk onto the surface and should leave you with a highly visible straight line to work with. This is known as “snapping the line”.

Tips for using a chalk line on your own