How To Install Window And Door Trim

The final step for both the door and the window trim is building and installing the head casing assembly.

How to install window and door trim.

Use a tape measure to measure the area around the door image 1. This is done with molding called casing. Either you ve installed a new door or decided to change the door s trim for aesthetic reasons. Most trim carpenters don t even use a tape to trim windows.

For larger windows and doors it takes about one hour to install the materials. The fillet a 1x6 and the cap molding. Prepare to install door trim for a consistent look match the interior trim around your door to the style of the room. 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. Cut the ends at 45 degree angles to fit around the door jamb. It s made up of three parts. Labor is around 70 per hour for both windows and doors.

Watch this video for step by step instruct. Traditionally this cap molding was solid but since a solid molding this large is hard to come by we substituted 2 1 4 in. It s all done by eye with a sharp pencil a miter saw and an 18 gauge nailer. Then use a miter saw to cut the trim to those measurements factoring in a 1 8 reveal on the doorway image 2.

Installing window trim ranges between 100 to 170 per window but they can be as low as 40 or as high as 350. Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle.