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How Do You Trim An Interior Door

 
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Old 05-10-2019, 07:15 AM   #21
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Re: How Do You Trim An Interior Door


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Originally Posted by Inner10 View Post
No one pre-assembles?
I do. Domino and glue all the miters and trim legs if necessary. Never have to fight with a wall or a ****ty hang job all while knowing the miter is perfect and staying put.
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Old 05-10-2019, 07:33 AM   #22
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Re: How Do You Trim An Interior Door


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Originally Posted by rrk View Post
that is at least 3 trips to the saw for each side of the door, way too many trips
Ok, so how one do it in less trips? Top is one, both left and right (two), tweaks (three)
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Old 05-10-2019, 07:41 AM   #23
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Re: How Do You Trim An Interior Door


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Originally Posted by MarkJames View Post
Mark, I tried doing this way but being inched of the trim width away from where the leg should go and placing the molding upside down on the top corner of the miter edge on the floor, he will be off on his cut if the molding is not perfectly level as it would lay against the jamb.

He would be more accurate if he put the straight cut side on the floor and mark top miter against the head, this way he has a better chance to keep the leg straight while resting on the straight cut.
Something like this
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Old 05-10-2019, 08:00 AM   #24
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Re: How Do You Trim An Interior Door


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Originally Posted by greg24k View Post
Mark, I tried doing this way but being inched of the trim width away from where the leg should go and placing the molding upside down on the top corner of the miter edge on the floor, he will be off on his cut if the molding is not perfectly level as it would lay against the jamb.

He would be more accurate if he put the straight cut side on the floor and mark top miter against the head, this way he has a better chance to keep the leg straight while resting on the straight cut.
Something like this
Do you mean flipping it around (same side) and marking? Good idea.
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Old 05-10-2019, 08:52 AM   #25
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Re: How Do You Trim An Interior Door


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How do you do that? 45.9į cuts make a 91.8į angle. With the head jamb being level the bottom of the leg would be 2 1/2" out over 80". . If your jamb is plumb AND level 45į Will be perfect.
Lol! Oops, I mean 44.5-44.9į! Good catch!
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Old 05-10-2019, 03:25 PM   #26
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Re: How Do You Trim An Interior Door


Once you start pre-assembling you will never go back!

First cut stock to rough lengths, then cut all lefts, swing saw over, and cut all rights.

Use good glue, and right sized clamps. Wait for miters to dry, then just nail them on and no fussing with it in place.


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Old 05-10-2019, 03:47 PM   #27
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Re: How Do You Trim An Interior Door


If you are going to pre-assemble, just order split jambs.

Pre-assembled.
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Old 05-11-2019, 12:24 AM   #28
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Re: How Do You Trim An Interior Door


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Originally Posted by Caleb1989 View Post
Once you start pre-assembling you will never go back!

First cut stock to rough lengths, then cut all lefts, swing saw over, and cut all rights.

Use good glue, and right sized clamps. Wait for miters to dry, then just nail them on and no fussing with it in place.


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I have preassembled casing many times and Iíve gone back. But I do it when I can, usually on thin, narrow trim.

Pre-assemble 3/4Ē thick by 4 1/4Ē wide casing. Now letís say you have a door that you had to tweak in the opening to get it to hit the stop properly and itís behind or in front of drywall an 1/8Ē at the head jamb, give or take, you will never get that casing tight to the jamb or drywall. You canít tweak it.
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Old 05-11-2019, 02:04 AM   #29
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Re: How Do You Trim An Interior Door


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I make a square block out of 1x stock about 1.5" then rabbet all four sides to a quarter inch for my reveal, I find it easier than using my combination square. The last block I made lasted about 20 years and then suddenly disappeared.
I use the same blocks. I have a few with different reveals on them. They work great.
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Old 05-11-2019, 06:07 AM   #30
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Re: How Do You Trim An Interior Door


I don't understand the advantage of doing the tops last. You can explain it to me if you want, but I still won't understand it.
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Old 05-11-2019, 06:47 AM   #31
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Re: How Do You Trim An Interior Door


All of my work is replacement.
A lot of the time I have to hide the paint line so I have to set the sides to cover that line. Then the top gets cut to whatever length.
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Old 05-11-2019, 06:51 AM   #32
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Re: How Do You Trim An Interior Door


One could probably create a measuring jig to get it down to one trip to the saw. I've got something in mind that would be good enough for Kreg.
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Old 05-11-2019, 06:54 AM   #33
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Re: How Do You Trim An Interior Door


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Originally Posted by TimNJ View Post
If you are going to pre-assemble, just order split jambs.

Pre-assembled.
No way. Split jambs are trash.
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Old 05-11-2019, 11:37 AM   #34
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Re: How Do You Trim An Interior Door


i preassemble . takes more thought up front but far easier and faster .seems my jobs are generally heavy casing not the small stuff .
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Old 05-12-2019, 04:22 AM   #35
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Re: How Do You Trim An Interior Door


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No way. Split jambs are trash.
How so?
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Old 05-12-2019, 05:55 AM   #36
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Re: How Do You Trim An Interior Door


On spec homes, I am still running pattern K, and pre-assembly isn't a perfect method by any stretch....

I run the left side, top, and fit the right...the way I was taught, and it is the way I still do it today. I generally precut all the pieces and the method works for me. But keep in mind, this is new construction on slab. I haven't trimmed a house in years, but joy joy, I get to do 3 in a row...specs I am building now, and I figured why not? I am on site all the time anyway since I don't have another custom or commercial project starting soon.
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Old 05-12-2019, 07:13 AM   #37
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Re: How Do You Trim An Interior Door


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Originally Posted by hoser View Post
I have preassembled casing many times and Iíve gone back. But I do it when I can, usually on thin, narrow trim.



Pre-assemble 3/4Ē thick by 4 1/4Ē wide casing. Now letís say you have a door that you had to tweak in the opening to get it to hit the stop properly and itís behind or in front of drywall an 1/8Ē at the head jamb, give or take, you will never get that casing tight to the jamb or drywall. You canít tweak it.
Move the stop and not the jamb. We order all our pre-hungs doors without the stop attached.
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Old 05-12-2019, 08:17 AM   #38
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Re: How Do You Trim An Interior Door


[QUOTE=Joasis;7540861]On spec homes, I am still running pattern K, and pre-assembly isn't a perfect method by any stretch....

what issues are you having doing pre-assembled casing on your spec homes
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Old 05-12-2019, 08:31 AM   #39
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Re: How Do You Trim An Interior Door


[quote=JFM constr;7540913]
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On spec homes, I am still running pattern K, and pre-assembly isn't a perfect method by any stretch....

what issues are you having doing pre-assembled casing on your spec homes
Pattern K doesn't lend itself well to nailing and gluing it up in advance, just to the size and quality of the material. If it is in oak, then probably, buy not finger jointed pine. My way is quicker, and in specs, time is money.
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Old 05-12-2019, 07:11 PM   #40
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Re: How Do You Trim An Interior Door


I do the room for room and head last. Walk the house and mark all top intersections. Stack all legs and tops at each door long. Set legs up and scribe to my mark on head intersections. Go to the saw and cut all legs. The I take the heads that I have already mitered one side of, flip them and set them on top of legs and scribe. I dry fit and adjust the miter ass needed. Also I only put 2-3 pins at the jamb/leg and none on the drywall until Iím happy with miters. (Iíve found the if your toe is open slightly, a cardboard shim behind both toes will close it up)
I try to do 3-4 doors at a time to minimalize trips to the saw. I cut the legs on all doors in group and then all heads in group. Same principle as base. Measure whole house, sit at saw and cut whole house, fit and mark any that need adjusting, then back to saw for one last visit.

Hope my explanation makes sense


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