How to Cut a straight line
Knowing how to cut a straight line is essential for most projects. AsktheBuilder.com host Tim Carter demonstrates one technique for cutting a straight line. With his tips, you'll have no problem getting perfect cuts every time.
To assist with your cutting, first clamp a framing square on a scarp piece of wood. Use a pencil to make a mark along the edge of the square. Do not remove the framing square yet. Then, take your circular saw and place the fence edge of the saw guide against the framing square and make a small cut. Remove the square and measure the distance between the cut and the pencil mark. This will provide the offset needed for making your straight cuts.
When cutting pieces for your remodeling project, mark where the cut should be, then make a second mark over the same distance that you measure in the test cut. Clamp the framing square on this second line. Place the edge of the circular saw against the framing square and make your cut.
The results will be a straight cut every time. Try it the next time your project requires a straight cut.