VIDEO: How to Use a Chalk Line

BRAD PENNINGTON: Hey guys, how are you? So, I've got to the bottom of our boat structure here. We've got a nice natural decline. So this bottom slat had to be ripped from two and seven eighths to five inches. Now a couple of little tips and doing that, find your low end right, which is our two and seven eighths. Find our high end, Mark it out using this little fancy speed square here, two and seven eighths. Mark it down to five inches. And then run our chalk line, a tool consisting of a length of string and a box of powdered chalk used for marking straight lines over long distances.A tool consisting of a length of string and a box of powdered chalk used for marking straight lines over long distances.

Make sure you measure correctly, mark the chalk line. The taught string creates a straight line shape above a length of wood.

Snap that and you'll get a perfect line. Then powdered chalk imprints the straight line onto the wood surface.

Then use a table saw and you can sort of hand rip it by yourself. Or some people might use a circular saw. A "rip cut" is a cut made parallel with a piece of wood's grain. The final slat will fit in perfectly right along the edge of the grass and nobody will know the difference.