How to Install Window & Door Trim - Casing Made Simple

The finish nail as an extra hand to mark your miters is such a simple trick! Always learning something new, thank you

This is a valuable addition to my woodwork collection youtube.com/post/UgkxbnOKZBE4evMO5V2vroHeCjq6d_MV6… I still will rate this woodwork plan as the best in my reference library. It always seem to stand out from the rest whenever you go through the library. This is a masterpiece.

April Wilkerson recommend your channel and I can see why. Great video. Lots of great tips for amateurs like me without being patronising. Looking forward to watching more.

An easier way to mark the reveal is to make a guide out of hardwood (for durability) scrap. Take two pieces of 3/4-inch material about two inches square and assemble them -- very precisely -- with glue and a couple nails so they are offset 1/4 inch. The guide simply rests in the corners of the window jam extensions for marking the reveal. If your reveal is other than 1/4 inch it is easy to make several guides. Keep them with your shims and they will be easy to find. These guides are also handy for marking the reveal at several places along the casing, as long pieces of slender material such as MDF can sag and make the reveal inaccurate.

WOW Thank you so much for taking the time to post this. Perfect.

That's a very helpful video, Jon. Thanks.

Another great video, thanks. Maybe in a future one you could show how to work around out of square jambs and the like.

Thanks for a great video. I would like to see a video of installing a door/casing as well.

Thank you for such a clear demo. I’m ready to do this.

Try using syroflex as your adhesive (it’s white and application is similar) and cutting your miters with a 1 degree compound angle so you can really get nice tight joints. Also like to use 16 gauge nails for nailing into framing. I appreciate that tip about holding your nail gun, I never knew that!

Looking good, John! Going to help a buddy with trim in a couple months so this is helpful!

I like the finish nail to support the piece - smart.

Great video. I especially like how you've clearly shown how to mark a measurement and then cut it on the saw. Thank you.

I was looking for what is the reveal or why its used, your video its the only one explaining that , Thanks for sharing

Thanks so much for the tips! Now I can trim my window with confidence!!! God bless you! :😊

Great video. My wife and I are looking to add crown molding (i believe it's 3 piece molding) on the outside of our windows. How would we go about diy'ing the molding ourselves? Thanks!

Unless for a custom installation, all doors come in standard sizes. A 2'0" door = 24" inside of jamb to inside of jamb. A 2'4" door = 28" inside to inside, 2'6" 30" etc.. Side jambs from bottom to inside of top jamb measures 80". A properly installed door with tight joints this does not vary. I've been doing trim carpentry for years and I've watched carpenters repeatedly measure from door to door to fit trim. IT DOES NOT CHANGE!!! For a 1/4" reveal add 5/16" for each miter cut. For example a 2'6" door measuring 30" inside to inside of jamb, for your top trim, add 5/8" from short point to short point of your two miters for a total of 30 5/8". Your side jambs are going to measure 80 5/16" from square end to short point of miter. This will give you an even 1/4" reveal all around the door. For a 2'8" door your top trim will measure 32 5/8" short to short, your side jambs 80 5/16" square end to short point. A 6'0" slider, 72" inside to inside, cut 72 5/8" for your short to short on top, 80 5/16" square to short for your sides. The number of times I've watched experienced carpenters go from a 2'6" door and have to walk back and forth from miter box to door to mark the trim, then rinse and repeat on the next 2'6" door or the opposite side of the same door. Those measurements didn't change and yet they, measure and cut, measure and cut. So many wasted steps back and forth. As a lead carpenter having to account for man hours/man days on trimming a house those wasted trips add up to a lot of wasted man hours. This method does not in any way jeopardize your quality but will save you lots of time. Windows often will differ in size but you can employ the same trick. Measure your window inside of jamb to inside of jamb all the way around. WRITE IT DOWN. Add 5/8" short point to short point of your miters for each piece of trim. Measure and cut all your trim at one time at the saw. It will fit perfectly with a 1/4" reveal all around your window. This will save all those steps back and forth, your trim will fit perfectly without all the nails for support, marking the miter and back to the saw to make the cut, then back to the window for install. If you want or need to mark set backs for your reveals. Make a simple setback jig. Cut a 3" square of 1/4" plywood. Cut another piece 2 3/4" square. Glue one surface, align two sides of the smaller piece with the larger piece. This will leave a 1/4" step on two sides of the larger piece. Place this jig with the smaller piece inside of the corner of your jamb, the larger piece will be laying on the face of the jamb. Mark each side of the corner, there is your 1/4" setback on both sides. After trimming a few hundred doors and windows, hopefully you will train your eye to gauge a 1/4" reveal without having to mark every one.

True Craftsman. GREAT JOB!

I know that the ceiling is White Dove and the walls are Revere Pewter, but what is the blue paint color in other room, in the background? The three colors look so good together!

Closing in on the big 200K! Congrats