How To Install Trim Around Windows And Doors

Here s how they do it.

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. Start with the casing around the doors and windows. This video shows the installation of siding j channel around doors and windows. From the edge of the jamb to align the casing to the door jamb and windows photo 1.

Align the other end and nail it up as well. Instruction on how to install exterior 2x4 trim around a new or old window. Nail up all the header pieces beginning with your 18 gauge brad nailer using 1 1 4 inch brads. Align one end with the reveal mark and then tack it in place to the door jamb or window surround.

When you know how to install window trim you can elevate your carpentry projects and achieve pro quality results. 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. Installing j channel around windows can be a difficult part of the installation process. The first few times you install casing we suggest drawing light lines called reveal lines 3 16 in.

Most trim carpenters don t even use a tape to trim windows. When installing window molding start at the top. For a consistent look match the interior trim around your door to the style of the room. 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.

Cut a 45 degree angle on one end of the trim and hold it so the short end of the angle. Watch this video for step by step instruct. Researching the proper steps for installing j channel. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes.