Exterior Jambs and Sills

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In this course, you’ll learn the essential elements of door frames and sills, including the parts of a door jamb, such as side jambs, head jambs, and mullposts, and their assembly. We’ll cover jamb materials like composite and solid wood, as well as options like FrameSaver and PVC frames for durability. You’ll explore exterior casing options, including Brickmould and flat casing, and different types of sills—inswing, outswing, and public access sills—along with their features. Additionally, we’ll discuss accessories like sill extenders, sill horns, sill pans, and sill covers. By the end, you’ll be able to select the right frames and sills to enhance your home’s entryway.