Door Trim with unevent gap between casing and wall face

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Ban Bot

Senior member
Jun 1, 2010
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Over the weekend with the help of some friends we hung 2 exterior doors, front and back entryway doors.


The front door was a challenge. We had measured and selected a 36x80 door. The door is in plumb, level, and square but I have two issues.

The first issue is there is a relatively wide, but inconsistent width, gap between the casing and the dry wall edge. The roughed in door width was ~ 1 inch too wide but had a lot of variance. We ended up splitting the space and have about 1/2" (with a - 1/8 to + 7/16 variance) on each side. If this was my only issue I could draw back the dry wall and either install some wood to clean up the inside jamb appearance and address trim and call it a day.

The second issue is the depth of the casing versus the jamb. At the top of the door the casing sits flush with the roughed in door (i.e. a gap created by the dry wall). But at the bottom there is nearly 1 fill inch of the roughed in jamb.

I am looking at the best way to fix this. A radical approach would be to get some 1/2" pressure treated wood, hand plane the tight spots, shim the loose spots, and literally reseat the entire door. Of course the bottom of the door is glued in, I have MS and it won’t be easy to get my friends over to rip out all the work we did. The door is installed securely and functioning.

My next best thought is to get ~ 1/2" strip of wood and hand plane, sand, etc. so the face is flush with the drywall. The strip would have a natural straight edge to meet the corner of the casing and the gap between the strip and the dry wall is irrelevant as it would be filled and then covered with trim. This is what my friend suggested. I have never done something like this but think I am up to the challenge with some guidance.

Any advice or alternative suggestions? I have not insulated (door & window Good Stuff) or caulked the door yet.

Ps. I will try to post pictures in the next day or so as I am sure my description is inadequate. The good news is the back door went in without a hitch as the 32x80 steel door fit without issue. Minor shimming required to get the door plumb, level, and square. The door took less than 2 hours to complete beginning to end. We did this door first. My friends were very conscientious about making sure it fit correctly so I don't think the front door issues are due to us rushing or lack of knowhow on their part. I had read 5 tutorials before we started and watched some youtube videos.
 

skyking

Lifer
Nov 21, 2001
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some captioned pics would be nice. It is hard to describe these sorts of fitment problems by word alone. If you have enough room on each side I am often tempted to match up the outside as best I can and float the inside with drywall mud. Then trim it out.
 

edro

Lifer
Apr 5, 2002
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You can use a compass (scribe) to measure and transfer the gap along the entire length.
Check youtube for videos on using a compass/scribe to transfer gaps to your work piece.

http://www.familyhandyman.com/tools/how-to-scribe-for-a-perfect-fit/view-all

You can then use a table saw to cut your piece if it is a generally straight angle shape, or use a jig saw if it is more wavy. Planing would take forever.

Post pics for better response. I can't quite follow your story.
 

Greenman

Lifer
Oct 15, 1999
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If I'm understanding you, it sounds like you installed the door plumb in a wall that was well out of plumb. If you've done what I think you've done, you're going to have to remove the door and start over. Never plumb a door in the plane of the wall, only perpendicular to it.

Post some pics and I'm sure we'll be able to fix you up.
 

Ban Bot

Senior member
Jun 1, 2010
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I took pictures last night and sent them to work but Anandtech doesn't allow attaching pictures. I don't have offsite access right now but I will put them in my OneDrive tonight and post.

@ Greenman:

If I understand you correctly that may be what we did. We made sure the door casing was installed plumb (both directions), square, and level--although the Jamb is not plumb in one direction.

The Door Jamb is not Plumb when standing inside the threshold and facing the Jamb (either the hinge side or latch plate side). It is a right inswing door so when facing the hinge Jamb the frame angles right ~ 1 inch total from bottom left to upper right.

When facing the door face the Jamb is ~ plumb. The Jamb is ~ square and ~ level.

When we installed the door we got the top brickmold flush with the house (as that is the furthest part tilted out in the non-plumb plane) and then plumbed, squared, and leveled the door the best we could. Per the level guides the door/casing is plumb both directions... too bad the door jamb/wall isn't! :(


The other issue (jamb width) is far easier to overcome; or would be if the Jamb was plumb in both directions.


Ps- I am a total newb at this stuff, but am enjoying home ownership and learning how to do all these DIY home improvement jobs. Never grew up doing this stuff but I enjoy learning and I am trying to do everything "right" within my budgets, of course. So I appreciate the feedback.
 

Ban Bot

Senior member
Jun 1, 2010
796
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Pictures as promised.

Door
Door1
Door2
Door3
Door4
Door5
Door6
Door7
Door8
Door9

And before you ask the plan is not too leave the skylights between the jamb and casing ;)

The picture Door4 shows the top inside hinge while Door5 shows the bottom of the same side. Note how at the top the casing is flush with the jamb (only the drywall protrudes beyond) but at the bottom the casing is inset almost an inch.

Ouch. And Door6 is a good example of how wide the gap between the jamb and casing is. You can see right through as the brickmold on the front had to be cut to fit around the exterior red brick facade.
 
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skyking

Lifer
Nov 21, 2001
22,622
5,730
146
If I'm understanding you, it sounds like you installed the door plumb in a wall that was well out of plumb. If you've done what I think you've done, you're going to have to remove the door and start over. Never plumb a door in the plane of the wall, only perpendicular to it.

Post some pics and I'm sure we'll be able to fix you up.

Looking at the pictures, it seems the wall is way out of plumb. If he matched it as-is the door is going to swing pretty heavily.
 

Greenman

Lifer
Oct 15, 1999
21,703
6,138
136
Looking at the pictures, it seems the wall is way out of plumb. If he matched it as-is the door is going to swing pretty heavily.

He doesn't have a choice unless he goes to a two part jamb. Exterior door jambs have an integral stop. You set them flush with the wall surface and live with it. A two part jamb (the stop is nailed on) would solve the problem, but he'd have to bore for the dead bolt and latch after it was hung, and slide hinges way in on one end. It's going to look all kinds of weird, and be hinge bound. It's also going to be weak, an 8 year old could kick it open.

OP. You need to pull the door out and start over again. Keep the jamb edge flush with either face of the wall. Looking at the closed door, it will be plumb and square left to right, but in out direction will be way out of plumb. It's either going to be self closing or self opening, depending on which way the wall is out. You're pretty much stuck with that.
 

Ban Bot

Senior member
Jun 1, 2010
796
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Thanks for the feedback. I am going to have a friend who is a carpenter (not one who helped install) take a look and help me plot a game plan. Will keep you posted.
 
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