Getting enough trim for short corners is important. You can use short pieces of trim to form the corners as needed, then connect them to longer pieces of trim.
You can find a calculator at http://www. installcrown. com/Crown_angle_generator. html.
Avoid wearing gloves, long clothing, or jewelry that can get caught under the saw’s blade.
This piece will typically fit on the left-hand side. All of the trim around windows and doors forms outside corners. Think of a picture frame. Some baseboard and crown molding installation involves outside corners as well. Outside corners generally consist of single pieces of trim connected together. For long walls, you can glue or nail longer pieces of trim to the corner pieces you cut.
This piece will typically fit on the right-hand side. For trim with multiple corners, such as the top and bottom pieces framing a window, cut the opposite end of the original trim.
The cut edges should fall exactly on the corner of your wall, door, or window.
You can also nail the boards in place for additional stability. Position 2. 5 in (6. 4 cm) finish nails about every 16 in (41 cm) along the trim. If the boards don’t connect cleanly or rest flat against the wall, caulk can cover up the imperfections. You can paint caulk the same color as the trim so anyone who comes into your home is hard-pressed to spot the flaws in the miter cut. You can also prime and paint the boards afterwards.
Doing this is similar to cutting an outside corner. You can cut another piece of trim at a 45-degree angle and install them on the wall right away. However, most walls do not form a perfect 90-degree angle, so you will notice gaps in the connection. Inside corners are where 2 walls meet to form a concave angle. It is common in baseboards and crown molding.
Make sure the boards are set up exactly as they will be when you put them on the wall, or else you won’t get an accurate cut.
If you are good with a miter saw, you can use it instead of a coping saw. Set it at 0 degrees to make a square cut, then carefully slice off the edges you marked.
You can also use a utility knife or 180-grit sandpaper to gradually smooth out the rough edges.
Caulk is often used for inside corners. If you can’t get the angle right, fill in the gaps with paintable silicone caulk, then paint over it to hide it.
