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.

Prepare to install door trim for a consistent look match the interior trim around your door to the style of the room. When installing window molding start at the top. Watch this video for step by step instruct. Either way to trim a door you need to bridge the gap between the door jamb the frame from on which the door is hinged and where the latch engages and the wall.

It s all done by eye with a sharp pencil a miter saw and an 18 gauge nailer. Use a tape measure to measure the area around the door image 1. Labor is around 70 per hour for both windows and doors. Either you ve installed a new door or decided to change the door s trim for aesthetic reasons.

When you know how to install window trim you can elevate your carpentry projects and achieve pro quality results. Cut the ends at 45 degree angles to fit around the door jamb. Then use a miter saw to cut the trim to those measurements factoring in a 1 8 reveal on the doorway image 2. Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle.

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. For larger windows and doors it takes about one hour to install the materials. Traditionally this cap molding was solid but since a solid molding this large is hard to come by we substituted 2 1 4 in. Here s how they do it.

The fillet a 1x6 and the cap molding. This is done with molding called casing.