How to Replace Door Trim on a Pre Hung Door - Trim Carpentry
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- Опубликовано: 2 июл 2024
- Door trim upgrades will add value to your home, but replacing door trim on a pre hung door is tricky unless you follow the right steps. Watch step-by-step how to replace door trim on a pre hung door using trim carpentry techniques.
The first step to separate the door trim from the drywall using a sharp utility knife. Then, do the same between the door jamb (the inside frame of the door) and the trim. Before you start taking off the door trim though, it's important to take it off in the right order.
A pre hung door is a preassembled unit, including the door, door jamb, and trim. It's installed by standing up the pre hung door in the opening and nailed in place through the trim. This is a method of trim carpentry for fast production work. If you take off all the trim at once, the door jamb will move and will be difficult to control. Start by only taking off the top piece of trim.
Once the top piece of trim is removed, shim up the corners of the door jamb and drive in some finishing nails to hold it in place. This will lock the top of the door jamb in place. The second piece of trim to remove is on the hinge side of the door. It's important to shim this up at the hinges and in the middle so the door is positioned with an even gap at the door opening side. Drive in some finishing nails to hold this side of the door jamb in place.
You can now remove the door trim on the last side. Shim and nail it in place in several spots, including where the strike plate is for the door latch. Now you've locked the door jamb in place.
The trim on pre hung doors is glued and stapled to the door jamb. It's difficult to remove in spots. I use a putty knife to remove as much as I can. I use fencing pliers to remove the staples, then remove any remaining trim with a sharp chisel or block plane.
Installing the new trim starts with the plinth blocks at the bottom of the door frame. Once the plinth blocks are installed, it's time to measure the length of the casing by standing it in place and marking where the old trim was removed at the top. I also measure the length of the top cap to build in the workshop.
The top cap is made up of three parts; the header, a 1/2 round trim, and a small crown moulding. After cutting a 1x6 board to length on the miter saw, I cut a small piece of 1/2 round with a 45 degree miter and the longer piece with a matching 45 degree miter. I test the fit on the cap board and glue them together with CA glue to get a bond in seconds. I then measure the length I need for the second miter and cut it to length. I attach this to the cap board using CA glue and PVA/Carpenter's glue.
I follow a similar process for the small crown on the top cap. After sanding and priming the assembled top cap, it's ready for installation.
After cutting the trim to length, I nail on the side that will be most visible first. Then I stand the second side in place and nail it on at the bottom and the middle, leaving the top loose. I then nail on the top cap by alining it to the most visible side first, then I can adjust the loose door trim to align with the top cap and nail it in place.
I hope you enjoy this video and learn a few new things about trim carpentry. It can be rewarding work to transform your home with trim.
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VIDEO TOPICS
00:00 How to Replace Door Trim on a Pre Hung Door
00:59 Separating the door trim from the drywall and door jamb
01:59 Removing the door trim at the top of the pre hung door
03:13 Securing the top of the pre hung door in place
04:19 Shimming the door hinge side
05:56 Shimming the door opening side
07:39 Measuring the door trim
10:14 Building the door cap
28:52 Installing the door trim
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#Trim #Carpentry #Door 
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This is THE BEST video I've found on replacing door trim. Terrific instruction and execution. Looking forward to doing this on my doors and windows.
Glad you found it helpful. Our goal is to teach these skills so that's great to hear. Thanks! Scott
I am usually not into woodworking, but I still ended up watching the whole video because I really enjoy the way you talk and explain things. Very comfortable to watch. Keep up the work! Greetings from Germany :)
Thank you, I appreciate that. Thanks for sharing where you're watching from too! Scott 🇨🇦
Holy cow this was so professionally done. I watched the entire video. Captivating and I'm not even doing trim work. SUBSCRIBED!!!
Glad you liked it Rob. Thanks for the feedback. Scott
Scott, not only was it a pleasure to watch how much pride you take in casing out the door but, Man... do I find your videos relaxing Bud!! Hoping all is well, Dirty Jersey out!!
I appreciate that! Cheers. Scott
Love the video. I have done 3 doors based on your video. Thank you! You are a great instructor.
Excellent video!
Dude is so chill and stable aint trying to get you to buy stupid stuff you dont need. I'm in SUbbed!
Thank you for your support!
this was so helpful, i am getting ready to replace all the baseboard and casing in my whole house. thanks so you much. This video was so helpful
Good information with clear explanations, thanks for sharing your work.
Glad it was helpful! Thanks. Scott
So many things I’ve learned just from one video. Thanks
You're welcome. Glad to hear you're learning lots from our videos. Our goal is to teach viewers about woodworking so it's motivational to hear that feedback from you. Scott
Scott I now know what a return is and it really makes the finished trim look great! Thanks!
You're welcome. It makes me happy to hear you learned something new from this video. Thanks for sharing that.
Sir thank you so very much, the way you explained how to do this project in so much detail, I feel like I just took a class in wood shop. God Bless † and keep up the great content. Have a super blessed week. John 3:16 †
PS. I'm actually about to install a front entrance door and guess what's going around it? Thanks again. ♥
looks great!!
I will use the quarter round idea.
Great video, subscribed right away. Already a fan from fixing furniture
That's great. I'm glad you're liking our other RUclips channel. Thanks for subscribing! Scott
Dang, this guy is an excellent teacher
Thank you. I appreciate that! Scott
Love this video
Thank you! Scott
Great details and great shirt
Thank you! Scott
That new trim looks like the doors on our old 1909 house, which I’ve always considered to be a sort of craftsman style. I’ve always loved it in comparison to the “pseudo colonial” type stuff we see today. At least, this pre-hung door originally had those ornamental corners that I’ve seen on other houses in our neighborhood, (sometimes stained instead of painted, which is cool!) but you can tell it was done cheaply.
Edit: another little thing I noticed about the trim on our house is, no plinth blocks, but it still looks perfectly fine. Our baseboards are styled differently: they’re a solid piece of wood about 8 inches tall, with a quarter-round base piece and a cool trim element at the top.
Yes, I selected this trim to give our home a more classic feel to it compared to the tiny trim the builder installed. Cheers. Scott
Awesome video thank you
Glad you enjoyed it! Scott
Great video I learned so much in just this video 👍
Glad to hear it! Thanks for sharing that Nick. I hope you subscribe. Scott
@@HomeImprovementWoodworking i already an subscribed
Very interesting video
Glad you liked it Robert. Thanks for sharing that. Scott
You just saved me $2,950. Thank you!
Wow! Glad it was helpful and saved you some cash! Scott
Really cool.
Thanks!
Your very efficient
Just found you videos outstanding job and great instruction which was very helpful thank you and I definitely scribed
Awesome, thank you!
Man you are great 👍 😊
Thank you so much 😀
Your videos are top notch. That door was not installed right to start with if no shims were used. Dont hire that guy! $20 for a utility knife?? What's so special about it??
Thanks for the discount on the CA glue!!!
About the utility knife, the quick release for the blade is the key part for me. This knife uses a slide button release that makes changing the blade so easy. I also like an ergonomic fit in the hand. I've owned about 6 different utility knives before this one and none compare. Mine is a Makita.
Can you share ideas for trimming casing around Shaker style doors, what is usually used?
I really like your video. Can you provide the dimensions of the 1/2 round and small crown moulding used?
Hello, the sides of my doors look good. I only want to upgrade the top casing. Can that be done without replacing all the sides?
What a poor job just the trim holding it in place to start with like your channel you do great work
Thanks. Yes, pre hung doors are not high quality but they're used because they're fast to install for high production work. Cheers. Scott
Great video! Question: do you do these around all windows and doors in the room/house? Just doors? Closets too? I already subbed to your furniture channel and you have an instant sub here too. Keep the great content coming!
I've done this on the doors only. For the windows, I've done a mix of the casing and rosettes on the corners and also window sills. Here's a window sill video - ruclips.net/video/SveIrINSDwk/видео.html
Hi Scott. Do you make your own shims? I'd love to see that process.
Yes I do! I made a video to show how to safely make shims. Here's the link to learn how to do that - ruclips.net/video/4VFBvs1x-lI/видео.html
I'd have pulled the carpet back and set the plinth blocks and skirtings (baseboards) level with the floorboards 🤔
If you're planning on reinstalling carpet, you will need to leave a gap between the floor and the bottom of the plinth block so the carpet can go underneath. I hope that's helpful. Scott
@@HomeImprovementWoodworking not at all, here in the UK skirtings and architraives are fitted hard against the floorboards and carpets are tucked between the gripper rods and skirtings.
Hope that helps 😉
15:05 have you considered simply attaching all your trim to the board then cutting the whole thing at 45s on the edges as an assembled piece?
Interesting idea but crown moulding has a slight back bevel to it, which means if you glue it directly to your stock, it leans backwards a bit. I prefer the method I show in this video. Cheers. Scott
nice video as always, but i have a question, what do you call a finish nail, from what I could gather (checking hardware strores), the category neither framing nor roofing there are only bradnailers (the funcky square head) with different gauges. The biggest I could get my hands on was 16 gauge nailer, is this what you're calling "finish nail(er)s" ?
That is correct. A finish nailer is 16 ga, the brad nailer is 18 ga, and a pin nailer is 22 ga
I was wondering why you are using glue instead pin nails in this specific operation.... but then again I am not in the trade and know very little about carpentry
Hi Rob. I assume you're asking about gluing the corners. You get a higher quality result by gluing the corners on miters before attaching the parts than the other way around (attach the parts while lining up the miters. I hope that helps. Scott
This guy has patience..works at snails pace some of the cutting could've done faster nice work though.
Would you help me? I have a question
We offer Advise Sessions on our website. woodenitbenice.ca/collections/woodworking-advice-sessions
@@HomeImprovementWoodworking Ok, ill hope you'll answer. what is the best type of shelf support other than those metal bands?
It's so frustrating that no one shows how to do things with hand tools so I wouldn't have to spend 1000s on expensive power tools before I can start a simple DIY project.
Miter box saw, 4D finish nails, and hammer is all you need my friend
And a nail setter
Should cost you more than $30
@@notetoself1378 I have a mitre box but still don't know how to use it lol - it's ok for cutting mouldings lying flat for making frames and such but when I stand it up to cut it as it would be on the wall it's taller than the box' wall so don't know how to start sawing and getting the proper angle on that portion that stick out.
@@bearcat1283 you would cut the trim lying flat on the ground at a 45. I don’t understand what you mean when you say cut as if it were on the wall
Fantastic job. I love the way you trimmed it out. But I wondered. Did you use caulk before the final coat of paint.
Thank you for creating this. I’m definitely going to use your method with my doors and (with slight variations) my windows.
Yes, caulk any gaps and always paint the caulking. If you don't paint the caulking, it could be visible, and dust will stick to it over time. Cheers. Scott