Pull the line very taut and the hold the line down on the mark with one hand.
Draw straight line on the floor.
Use a bubble level as you go to make sure the lines you re drawing are perfectly straight.
A chalk line can be as long as needed being.
Snap the chalk line leaving a straight chalk mark on the subfloor.
If you re trying to paint along the line where your walls and ceiling meet you can skip this step.
The problem is that the width at one end of the room is 290 cm while at the other end of the room is 295 cm so i assume that the walls are not straight.
Reach out with your other hand and lift up the chalk line about 10 to 12 inches from the floor pulling straight up then release the line so it snaps down onto the floor creating a crisp straight line.
This video is about how to make a first straight lane during hardwood floor installation on concrete.
If the wall is too long to snap the chalk easily kneel by the midpoint of the line and press it down to the floor with one hand.
Hi all i have to draw a straight line on a floor before i put tiles.
When any project calls for drawing a long straight line on a floor wall or similar flat surface a professional mechanic will use a chalk line.