Home & Garden Architecture

How to Make a Straight Line Without Line of Sight

By Home & Garden Last updated Saturday, July/13/2019

1). Measure and mark the location where the straight line will start with a pencil. Move to the other area that is out of sight and mark the location where the straight line will end. Measure the same distance on both sides so a straight line can be made.
2). Open up the chalk line and fill it with chalk. Use blue chalk for non-permanent applications and red chalk if it can be permanent.
3). Hold the clip on one end of the chalk line at the first location you marked with a pencil and have a helper walk with the chalk over to the other side. Do not touch the chalk line to the object you will be marking a straight line on until you are properly aligned.
4). Align the chalk on the other side at the pencil mark and hold it firmly in place. Lay the chalk down flush on the surface and have a third helper pick up the chalk line by a few inches in the middle and snap it down on the surface.
5). Move the chalk line away from the surface and roll it back up. Inspect the line you made and verify it is straight and connects at each end.