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Old 06-16-2012, 10:19 PM   #1
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install prehung interior door


Hi,

I just installed a prehung interior door. I followed the instruction of installing the hing side first (top, bottom middle), then the strike side, then the header.

Everything went fine until then. In my final steps, where I put more nails in every side, things got very messed up. I would put one more nail in on the strike side, then the door starts to jam; another nail in, the door is not hamming again....

Any tricks there?

Thanks

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Old 06-16-2012, 10:37 PM   #2
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install prehung interior door


Is your framing nice and plumb and not twisted?

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Last edited by Bonzai; 06-16-2012 at 10:40 PM.
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Old 06-16-2012, 10:45 PM   #3
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I would belive the frame was ok.

Would the frame be the only problem?

I thought I missed some hidden tricks in the door installation.
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Old 06-16-2012, 10:51 PM   #4
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No not the only thing but often the first thing to check. If the studs and header are plumb and level and not twisted then hold a 4' or 6' level (If you have one) on either side of the frame on the inside and see if either is bowed ... Could be you need to adjust some of the shims ... The smallest of adjustments can be a big deal with a door. I assume the door panel itself is not warped?
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Old 06-16-2012, 10:52 PM   #5
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install prehung interior door


Your shims need to be very tight or nailing will pull the jamb.
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Old 06-16-2012, 10:56 PM   #6
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Quote:
Originally Posted by Missouri Bound
Your shims need to be very tight or nailing will pull the jamb.
Ditto ;-)
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Old 06-17-2012, 09:28 AM   #7
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install prehung interior door


when i install i prehung i put the level on the floor first.
if the level is 100% level then i level my hinge side first.
if the floor is out of level, determine how much and cut it off the bottom of the jamb so when the jamb is in place it sits level.
i then put the level on the studs on the both sides to figure out if you can center the jamb in the opening or move it over to one side a bit if the stud is on a huge angle
i then put my level on all 4 sides of the wall to see if the walls are out of level to determine if the jamb needs to go in or out a bit.
i now put shims at the top of the hinge side and the top of the striker side to get it nice and tight and make sure the top is level.
i then shoot a couple brad nails in the top hinge side.
i now work my way down the hinge side shimming at the hinges and leveling and firing a couple nails in it
i then put a shim about 1/2"-1" at the bottom
i now put a 3" screw in the top where i nailed it, at the hinges, and one at the bottom
i now screw my door onto the jamb.
i no shim the striker side opening and closing the door and constantly checking my spacing.
i put the shims roughly in all the same places as i did on the hinge side but to make sure you put a shim where the striker goes.
i put one screw at the top, one at the striker, and one at the bottom
i check my spacing to make sure everything is perfect and do fine tuning if needed.
i now install my door knob and striker
next i brad nail on my door stop checking to see that the door closes properly with the proper spacing
i now cut off my shims using a knife.
i now cut and install casing.
i putty my holes then paint

if its one of those masonite prehung doors where the stop doesnt come off i put my 3" screws behind the hinges and behind the striker plate.
i use a 18ga brad nailer to nail it in place. alot of guys use a 15ga nailer with no screws
either works all personal option.
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Old 06-18-2012, 12:44 AM   #8
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install prehung interior door


I'd start with the hinge side (after you make sure the door is sitting level, either by shimming up on the subfloor or cutting jamb over finish floor)

make sure hinge side is nice and plumb and strait. Once you are done, don't touch it again, now use the door as a straitedge to align and plumb the strike side, a level is not necessary once you are done with the hinge side.

You may need to tap your shims in a bit to push out where you nailed in too much. Patience is important.

Last edited by chrisBC; 06-18-2012 at 12:47 AM.
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Old 06-19-2012, 07:04 AM   #9
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Thanks everyone, Thanks princelake, i will follow the steps next time.

So it is definitely a two men job? I found it hard to keep the door in place and hammer in the nails into the shims tight...
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Old 06-19-2012, 10:37 AM   #10
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install prehung interior door


Quote:
Originally Posted by hohadcr View Post
Thanks everyone, Thanks princelake, i will follow the steps next time.

So it is definitely a two men job? I found it hard to keep the door in place and hammer in the nails into the shims tight...
No, one person

A trick to make it easier is to pull the door off the frame, put the frame in the opening, level the jambs, plumb and nail the hinge side. Once the hinge side is fastened, put the door back onto the frame, and use the door to plumb and then fasten the strike side. Easier than trying to fasten the hinge side while the door is moving around.
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Old 06-20-2012, 07:55 PM   #11
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install prehung interior door


Quote:
Originally Posted by chrisBC View Post
No, one person

A trick to make it easier is to pull the door off the frame, put the frame in the opening, level the jambs, plumb and nail the hinge side. Once the hinge side is fastened, put the door back onto the frame, and use the door to plumb and then fasten the strike side. Easier than trying to fasten the hinge side while the door is moving around.
This is all with the assumption that the reveals between the door and jamb will be equal at the top and latch side!

Good luck.
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Old 06-20-2012, 10:09 PM   #12
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install prehung interior door


Quote:
Originally Posted by CrossWorks View Post
This is all with the assumption that the reveals between the door and jamb will be equal at the top and latch side!

Good luck.

It's not assuming anything. It is the installer making sure the reveals are equal. Installing the door properly will ensure good reveals.


If you level the frame to start with, as in shim the low side or or cut high side down, and then plumb and fasten your hinge side, then your reveal should be perfect. In other words, If the jambs sit so that your header jamb is level, then you will have a nice reveal at the top beteen door and frame. If you hinge side is plumb and strait, then the door will be plumb- you should be able to shim the strike side to have a nice reveal, as in an even gap with the door, assuming the opening is framed properly and you have room to shim.

Done dozens of doors this way never had a problem getting a good reveal. I find this method fast and easy.

Good luck


Last edited by chrisBC; 06-20-2012 at 10:16 PM.
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