How To Install Trim Around Windows And Doors

The first few times you install casing we suggest drawing light lines called reveal lines 3 16 in.

How to install trim around windows and doors.

It s all done by eye with a sharp pencil a miter saw and an 18 gauge nailer. Most trim carpenters don t even use a tape to trim windows. Nail up all the header pieces beginning with your 18 gauge brad nailer using 1 1 4 inch brads. The type and location of the flashings will vary depending on the type of windows and doors.

For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes. From the edge of the jamb to align the casing to the door jamb and windows photo 1. When you know how to install window trim you can elevate your carpentry projects and achieve pro quality results. When installing window molding start at the top.

Watch this video for step by step instruct. Instruction on how to install exterior 2x4 trim around a new or old window. With experience you ll skip this step and simply eyeball the reveal when you put up the trim. Align one end with the reveal mark and then tack it in place to the door jamb or window surround.

Here s how they do it. Start with the casing around the doors and windows. 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. 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.

Place each trim piece near the door or window where it will be installed. This video shows the installation of siding j channel around doors and windows. For a consistent look match the interior trim around your door to the style of the room. Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle.