How To Install Trim Around Windows And Doors

Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle.

How to install trim around windows and doors.

Watch this video for step by step instruct. Installing j channel around windows can be a difficult part of the installation process. Place each trim piece near the door or window where it will be installed. Most trim carpenters don t even use a tape to trim windows.

When installing window molding start at the top. Align one end with the reveal mark and then tack it in place to the door jamb or window surround. This video shows the installation of siding j channel around doors and windows. The first few times you install casing we suggest drawing light lines called reveal lines 3 16 in.

When you know how to install window trim you can elevate your carpentry projects and achieve pro quality results. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes. Nail up all the header pieces beginning with your 18 gauge brad nailer using 1 1 4 inch brads. Start with the casing around the doors and windows.

Before you cut start installing by marking out the reveal the gap between the trim and the edge of the door jamb or door frame which is typically 1 8 inch. Here s how they do it. The type and location of the flashings will vary depending on the type of windows and doors. It s all done by eye with a sharp pencil a miter saw and an 18 gauge nailer.

Align the other end and nail it up as well. With experience you ll skip this step and simply eyeball the reveal when you put up the trim. If you have vinyl or metal flanged windows for instance you can install drip cap flashing 4 the home depot over the window itself or over the top trim piece that you install. For a consistent look match the interior trim around your door to the style of the room.