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-   -   Installing a new door (http://www.diychatroom.com/f104/installing-new-door-183298/)

redman88 07-08-2013 11:42 PM

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Okay I have a door opening that I want to install a door in. It looks like it once had a bi fold door and has dry wall texture around the inside face. So I just need a check on making sure I have the process down for how to install a new pre-hung door. The opening is 33 7/8 wide to the finished edges and 81 inches tall from finished floor to finished inside. So I know I need to take it down to the stud on the inside what is the best way to do this? Then I will need to shim the new door looking at 30 inch door. Then trim and paint I the door needs it. What did I miss?

HomeSealed 07-09-2013 08:11 AM

You are on the right track, except I suspect that you will need a 32" door based on the measurements. Definitely cutback the interior finish in those jambs though to get to the RO.

redman88 07-09-2013 10:17 AM

Thanks that's what I was thinking in the back of my head but wasn't to sure

funfool 07-09-2013 12:46 PM

You might want to rethink this a little.
You want ro to be 3" wider then the door typically. 33 7/8 you could install a 30" door in the opening as is.
I would rather it be to studs and not drywall over the studs.

What I see is wallpaper, and the drywall is going to have corner bead. Will be a little tricky cutting back the paper to remove the corner bead without damaging the wallpaper. You can do it. You only have 2 1/4" trim plus the amount you shim.
You just do not have a lot of wiggle room. Of course, you can have trim as wide as you want.
Could be a lot of extra work to get a 32" door, if you are happy with a 30" door.

kwikfishron 07-09-2013 02:52 PM

I've never seen a need for a RO to be 3” wider than the slab assuming 3/4” jamb stock, 2” wider is the norm, 2 1/2" for 5/4 jambs. There should be no problem with a 32” door going into a 33 7/8” opening as long as the opening is relatively plumb.

The 81” height may be an issue though since most interior doors are 81 1/2” tall.

redman88 08-19-2013 05:50 PM

What's the best way to remove the dry wall from the opening? Or should I just sand the dry wall smooth and install the new door over the dry wall

redman88 08-20-2013 12:50 AM

No tips?

huesmann 08-21-2013 11:16 AM

Just take a hammer and cutting tool (chisel, prybar) to the drywall in the opening. Take care not to bash the corners too much. If I was hanging a slab door (not pre-hung) I'd probably go with a 32" door. I'd also replace the interior around the top and right, because I'd put casing around the opening on both sides, and I don't think your existing interior bits will work with casing due to their shape.

Re: the door height, a slab door you should be able to trim 1/2" no problem.

redman88 08-21-2013 12:24 PM

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Got to love it when people take the time to do things right. If you can't tell they tiled around the the base board

HomeSealed 08-21-2013 02:08 PM

Flooring is not my forte, but I don't believe that is entirely wrong to do so. Generally you'll have a base shoe then added. They probably tiled sometime long after the base moulding had been in place.


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