![]() ![]() Start at the top and align the outside of the trim with the end of the head trim. Now you can install the two vertical side pieces of trim. For my trim the mark will be 3-1/2 inches minus 1/4 inch or 3-1/4 inches from the outside edge of the extension jambs (see photo).Ĭenter the head piece above the window with the bottom edge on the marks you just made, nail it in place with two nails until the remaining trim is installed. This marks the reveal and helps you line it up before you nail it.Īlso put a mark where the ends of the head trim go. Make a mark on the left and right sides of the extension jambs 1/4 inch up from the inside edge. Now that you’ve cut all the pieces to length you need to install the head piece first. Horizontal Trim Pieces = width of window (+) 2 (x) width of trim (-) 2 (x) 1/4″ = 38-1/2 inches plus 2 times 3-1/2 inches minus 2 times 1/4 inch = 45 inches. Vertical Trim Pieces = height of window (-) 2 (x) 1/4″ = 59-3/4 inches minus 2 times 1/4 inch = 59-1/4 inches. Once you calculate the lengths you can cut two horizontal pieces and two vertical pieces for each window. Calculating the length of the trim pieces is easy now that we have all the dimensions. Typically I like to leave a 1/4 inch to 3/8 inch reveal from the inside edge of the extension jamb to the inside edge of the trim (casing). Also, the window measures 38-1/2 inch wide and 59-3/4 inch tall (these dimensions are to the outside of the extension jambs). For this example I used 3-1/2 inch wide flat stock trim (1×4). Laying out this type of trim is really easy. If you’re interested in learning why miter joints open up then you should read: What Causes Miter Joint Shrinkage. This type of joint will have almost no opening effect due to changes in temperature and humidity unlike miter joints. The Butt and Pass method involves butted joints between the top and bottom pieces with the side pieces as shown in the photo. Butted window casing works great and eliminates the dreaded “opened” miter joints that are famous with more elaborate miter joints. The simplest window casing consists of flat stock trim with butted corners (butt and pass). Trimming out a window can be quite simple if you stick to the basics. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |