How to make outside corner trim Get ready to boost your home’s curb appeal! Aug 27, 2025 · To cut molding corners, measure and mark the desired angles on the molding, then use a miter saw to make the cuts. This is a simple thin strip that gets set against a corner to hide the cut edges of your tile. Instead, the molding will butt right up to the corner blocks to form a perfect corner that is easy to install. “Typically, outside corners are installed before siding goes up. I love how the molding gives a nice finished edge to a piece no matter how rough the wood is underneath. Dec 3, 2024 · Cutting trim for rounded corners requires additional cuts at different angles and an additional center piece to wrap around the corner. You will need to use a miter saw to connect 2 pieces of trim at an angle. Feb 24, 2015 · Read to find out an easy trick to cut outside corners for bed or crown molding every time using a miter saw at 45 degrees. New comments cannot be posted and votes cannot be cast. Simply measure and mark the molding, cut at a 45-degree angle, and then attach it to the wall for a clean finish.