Door casing how to: A complete guide to installing door casingBaxter GreenfieldSep 02, 2025Table of ContentsTips 1:FAQTable of ContentsTips 1FAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeInstalling door casing is a crucial step in achieving a polished look for your interior doors. Whether you're a seasoned DIY enthusiast or a beginner, this guide will walk you through the process step by step. First, gather your tools: a miter saw, measuring tape, nail gun, and wood glue are essential for this project. Next, measure the height and width of your door frame to determine the lengths of casing you will need. Typically, the casing consists of two side pieces and a top piece, known as the head casing. Be sure to consider the style of casing you want—traditional, modern, or something unique to your taste. Once you've selected your casing, it's time to cut the pieces. For a clean, professional finish, use a miter saw to make angled cuts at the ends of the casing where they will meet at the corners. Generally, a 45-degree angle is standard for a neat joint. With your pieces cut, it's time to install them. Start with the side casings, positioning them flush against the wall and door frame. Use your nail gun to secure them in place, applying nails every 12 to 16 inches for stability. Then, move on to the head casing, aligning it with the top of the side casings. Again, secure it with nails. Make sure to fill any nail holes with wood filler, allowing it to dry before sanding smooth. Finally, touch up your casing with paint or stain to match your decor. This simple addition can dramatically enhance the aesthetic of your home.Tips 1:Consider using a level to ensure your casing is perfectly straight. A slight misalignment can be noticeable and detract from the overall look.FAQwelcome to CoohomHome Design for FreePlease check with customer service before testing new feature.