Knowing how to accurately mark and cut trim boards adds to the basic home improvement knowledge. If a mitered cut is even a small amount too short, the board may need to be scrapped. Follow the steps below to cut trim boards according to measurements taken from the installation area.
You will need:
Step 1: Prepare the cutting base by mounting a support board on the miter saw to achieve a better cut. You can make this base from pieces of scrap wood screwed into the saw at the rear end of its fence. This base helps extend the saw and prevents trim boards from sliding off while cuts are being made.
Step 2: Tack a trim board to the cutting base, placing the end of this board in the position where the cut will be made. Follow this process for both angled and straight cuts. Once the board is secured, use the pencil to mark where cuts will be made. Make marks as a V, not a line. Line up all cuts that will be made on this board.
Step 3: Accurate marking is the key to accurate cutting. Using only a line to mark the board will not create a straight indicator, making it possible to line up the incorrect end. A V mark indicates the exact area where the cut should be made. Trim boards can be lined up to the board secured to your cutting base.
Step 4: While looking straight at your trim board, align the end of your cutting base with a V mark. The V marks should be on the side of the cutting base, resulting in minimal chance of error.
Step 5: Hold the trim board firmly while making a cut, keeping your hand a minimum of six inches from the saw blade. Grip the trim and support boards to prevent them from moving during cutting. A clamp can be used to achieve a safer grip.