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DISCUSSION: Hanging Pre Hung Interior Doors Best Practices

 
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Old 07-14-2018, 01:49 PM   #41
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Trim material also makes a difference, especially on the strike side.

Solid wood, nailed well, will make the strike side a lot more solid. MDF, on the other hand, not so much....
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Old 07-14-2018, 01:53 PM   #42
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


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Originally Posted by AustinDB View Post
what is the point to using screws on the jambs if not going through the hinge? For the first 1-3 years there may not be an issue, but eventually it's the top hinge that pulls due to the hinge screw not having enough meat to hold it.

On jobs where it warrants, 16g nails and spray foam the hinge side of the jambs with one 3" screw through the innermost hinge. The painters will have to put it back up correctly but they usually don't. They also oftentimes over tighten the screws, thereby stripping out the wood or crappy hollow core doors.
I was just talking jambs. I thought it goes without saying to put a long screw through a couple hinges.

I just don't like jambs full of holes.

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Old 07-16-2018, 08:40 PM   #43
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


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Originally Posted by AustinDB View Post
what is the point to using screws on the jambs if not going through the hinge? For the first 1-3 years there may not be an issue, but eventually it's the top hinge that pulls due to the hinge screw not having enough meat to hold it.

On jobs where it warrants, 16g nails and spray foam the hinge side of the jambs with one 3" screw through the innermost hinge. The painters will have to put it back up correctly but they usually don't. They also oftentimes over tighten the screws, thereby stripping out the wood or crappy hollow core doors.
I hang with a Jambmaster. Hinge side gets screwed. Strike side on paint grade gets nailed. Stain grade is also screwed. The screws pull the jamb up tight to the blocks with no flex. The flex allows for compression at the bottom hinge. One of the craptastic 5/8" FJP jambs on a prehung can flex on the heads of 15g nails and compress. Those same jambs tend to be pretty bowed or wavy as well and are often bad enough that a nail will not straighten it out or hold it straight long term. I hide screws behind the stops and put two behind the top hinge. Long screws go through the hinges when I come back to do hardware to avoid stripped, snapped and over torqued screws from the painter.


In general I don't consider a 16g to be heavy enough to hang any door. It's a brad nail without an actual head. 15 gauge DA is the minimum fastener for doors for me. FN is also a glorified brad nail.
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Old 07-16-2018, 09:25 PM   #44
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Usually Grk trim screws 3 in each jamb, shimmed, with 2 screws at hinges into framing. I will be Allows minor adjustments for moisture/ painter rehanging. If painter can't hide it get new painter.
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Old 07-16-2018, 09:38 PM   #45
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Do any of you ever encounter those stupid Home Depot or Lowes doors that have the stop integral to the jamb. Like it is all one molded piece then has that extra thick plasticy candy like coating that they call "primer"?

About once a year I forget that that is one of the reasons I don't install doors from those stores. My F.I.L. needed a cheap door in a basement storage room and of course I agreed to pick one up at Home Desperate and install it for him. (It was a Sunday)

Good God I hate those box store doors!
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Old 07-17-2018, 06:24 AM   #46
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


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Originally Posted by Lettusbee View Post
Do any of you ever encounter those stupid Home Depot or Lowes doors that have the stop integral to the jamb. Like it is all one molded piece then has that extra thick plasticy candy like coating that they call "primer"?

About once a year I forget that that is one of the reasons I don't install doors from those stores. My F.I.L. needed a cheap door in a basement storage room and of course I agreed to pick one up at Home Desperate and install it for him. (It was a Sunday)

Good God I hate those box store doors!


I hate those junkers.

Since they are junkers, screws right in the jambs countersunk, tell the ho to fill multiple coats and sand down.
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Old 07-17-2018, 06:29 AM   #47
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


I will run 4 screws each side, and one long screw in each hinge.

When I install the casing I use specific pattern on the hinge side:

Forming a triangle at each hinge, one nail above the hinge and below the hinge (about 1") into the jamb, and then one nail, nailed into the stud in the middle of the hinge.


Jamb won't sag.
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Old 07-17-2018, 06:11 PM   #48
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


I use 10 bright finish Every door get six after I use the trim nailer to install the casing, Goes a lot faster than screwing . Mho
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Old 07-17-2018, 09:53 PM   #49
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Quote:
Originally Posted by Lettusbee View Post
Do any of you ever encounter those stupid Home Depot or Lowes doors that have the stop integral to the jamb. Like it is all one molded piece then has that extra thick plasticy candy like coating that they call "primer"?

About once a year I forget that that is one of the reasons I don't install doors from those stores. My F.I.L. needed a cheap door in a basement storage room and of course I agreed to pick one up at Home Desperate and install it for him. (It was a Sunday)

Good God I hate those box store doors!
I've installed hundreds of them and they work..
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Old 07-17-2018, 10:06 PM   #50
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


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I've installed hundreds of them and they work..
When the bottom plates don't line up, there is no recourse of adjusting the stop, since it's integral to the molded jamb.
I know Mr. Katz would recommend pounding the bottom plates into alignment, but 99% of my work is in remodel, and existing flooring rarely allows for the adjustment that I need.

Another beef I have with those doors is the hinges are always either proud of the jamb or mortised too deep.

For a long time I would just order the materials and Pre-hang them myself. Now I usually just order them with stops loose and adjust the hinge mortises as needed. You'd think door shops with Norfields dedicated to hanging doors full time could get this right. But it seems not to be.
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Old 07-18-2018, 08:43 PM   #51
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Quote:
Originally Posted by Lettusbee View Post
When the bottom plates don't line up, there is no recourse of adjusting the stop, since it's integral to the molded jamb.
I know Mr. Katz would recommend pounding the bottom plates into alignment, but 99% of my work is in remodel, and existing flooring rarely allows for the adjustment that I need.

Another beef I have with those doors is the hinges are always either proud of the jamb or mortised too deep.

For a long time I would just order the materials and Pre-hang them myself. Now I usually just order them with stops loose and adjust the hinge mortises as needed. You'd think door shops with Norfields dedicated to hanging doors full time could get this right. But it seems not to be.
Even with nailed stops the only times I pull the strike side is if I am hiding screws behind it or if the door has a nasty twist to it. Flooring is always in when I start and most of the doors have intersecting walls that make knocking them around impossible.

I use a 360 laser to shoot the jamb for cross plumb. I use a gauge block to mark lines in 1/2" from the edge on top and bottom and hit the top marks with the laser and pull the bottoms until they hit the lines. That would make the jamb plumb and in plane. Given that most walls are off plumb the line is usually just a reference to set the legs off plumb by an equal amount. In the pic that's about a 1/4". You can cheat it around 1/4" to 3/8" without having a ghost door.

To make up the variation on the casing I cut the proud rock out with a baby circular saw and clamp the bottom as I nail it. Most of the time you can cheat the opposite side so that the proud jamb ends up in a corner where you'd need a dentists mirror to see it. When it's not I have a deal worked out with the drywall guy that he doesn't glue the rock close to a door. I pull the drywall screws and slip in a couple drywall shims to plane it out, I favor the tops of my jambs flush to the rock so it's only needs to be shimmed for at worse half the jamb leg length.


And ya...door shops suck. If the hinge is not proud it's too deep. If that isn't the problem there is a ton of slop in the hinge barrels or all 3 hinges are swagged differently. On a bad day I can come up with some pretty creative profanity combos to describe the monkeys that feed the Norfields. And that's all before the painter starts jacking things up.
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Old 07-19-2018, 03:29 AM   #52
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Hey, I have a Norfield door machine, easy lol

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Old 07-19-2018, 09:01 AM   #53
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Quote:
Originally Posted by Justin Huisenga View Post
Even with nailed stops the only times I pull the strike side is if I am hiding screws behind it or if the door has a nasty twist to it. Flooring is always in when I start and most of the doors have intersecting walls that make knocking them around impossible.

I use a 360 laser to shoot the jamb for cross plumb. I use a gauge block to mark lines in 1/2" from the edge on top and bottom and hit the top marks with the laser and pull the bottoms until they hit the lines. That would make the jamb plumb and in plane. Given that most walls are off plumb the line is usually just a reference to set the legs off plumb by an equal amount. In the pic that's about a 1/4". You can cheat it around 1/4" to 3/8" without having a ghost door.

To make up the variation on the casing I cut the proud rock out with a baby circular saw and clamp the bottom as I nail it. Most of the time you can cheat the opposite side so that the proud jamb ends up in a corner where you'd need a dentists mirror to see it. When it's not I have a deal worked out with the drywall guy that he doesn't glue the rock close to a door. I pull the drywall screws and slip in a couple drywall shims to plane it out, I favor the tops of my jambs flush to the rock so it's only needs to be shimmed for at worse half the jamb leg length.


And ya...door shops suck. If the hinge is not proud it's too deep. If that isn't the problem there is a ton of slop in the hinge barrels or all 3 hinges are swagged differently. On a bad day I can come up with some pretty creative profanity combos to describe the monkeys that feed the Norfields. And that's all before the painter starts jacking things up.
I have never considered shimming the sheet rock . I will try that .I cut a lot of tapered extensions with the track saw .
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Old 07-20-2018, 09:12 AM   #54
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


This discussion reminded me of a question that comes up in remodeling:

When installing a new door I make the bottom of the door 1/4" above finish floor. But what if you don't know what the finish floor is going to be? Would you leave 1/2" over rough floor or more?
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Old 07-20-2018, 09:30 AM   #55
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


If you're talking about the door slab, 1/4" is too low. 1/2" is probably pushing it. The design of most homes is a central air return and vents in each room so air flow under the door is important.

If you're talking about the jamb legs, in a remodeling situation we set them on finished floor most of the time. If it's carpet, they are spaced up but any other flooring we try to install before trim.
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Old 07-20-2018, 02:20 PM   #56
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


I pin the door into the opening with a loose pile of shims, shim behind each hinge position, opposite each hinge position on the strike side, cheating the middle position to match the strike plate. I fasten with a 15ga DA finish nailer for paint grade, first below each shim position, then after a check, through the shims. 3" finish screw behind hinge plates near the stops. Stain grade doors get 15's or trim screws behind the stop or plugged if I must with species-matched plugs. PG patches are with bondo glazing and spot putty 1 part. Casings are attached with 1-1/4" 18ga finish nails on the inner perimeter, 2" for the rest, biscuited miters. Sketchy scribed casings get stitched on the back of the miter with T-50 short staples.

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Old 07-21-2018, 07:36 AM   #57
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


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If you're talking about the door slab, 1/4" is too low. 1/2" is probably pushing it. The design of most homes is a central air return and vents in each room so air flow under the door is important.

If you're talking about the jamb legs, in a remodeling situation we set them on finished floor most of the time. If it's carpet, they are spaced up but any other flooring we try to install before trim.
What sh!t homes are built like that?

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Old 07-21-2018, 01:15 PM   #58
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


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What sh!t homes are built like that?

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Which part are you talking about and are you being sarcastic?

I'm assuming you're referring to the air return portion of my post.
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Old 07-27-2018, 08:48 AM   #59
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


bathroom doors need more trimmed off .more like 3/4" .when i was younger i recall having to trim them so they would pass over mats on the floor .now a days i do it to get some air flow in the room . depending on the house i will vary the distance under the door .after working on remodels for so many years i have come to find out no one really notices and i do what i think is best .
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Old 08-06-2018, 03:04 PM   #60
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Re: DISCUSSION: Hanging Pre Hung Interior Doors Best Practices


Hanging some Jeld Wen doors tomorrow. Getting my craptastic door hardware modification kit together.

Wondering if I could successfully template rout a whole deck of cards at once?



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