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McCool 08-10-2009 09:19 PM

Installing closet doors into un-true opening - Need ideas
Hey guys,

I plan on putting in sliding bi-fold doors into an opening that does not have jamb or a frame (it's just a wall-to-wall opening) but I've never done this before so I would like to bounce some ideas off somebody before I commit the $300 on doors only to find out that this won't work.

I am installing hollow core doors into an opening that measures:

Top of opening : 68 1/2"
Middle of opening : 69"
Bottom of opening : 69 1/4"

I'm thinking of cutting the doors to 68 3/16" and covering the gap that will be against the wall with maybe a quarter round, but I am not sure as to whether or not that will restrict the doors from opening. also, how does the floor trim affect the operation of the doors? can I have the trim run between the wall and the door? or will this affect the doors operation?

I know Ideally I should have a framed opening, but I don't really have the time, cash or sanity to do that right now. If I can avoid turning this from a simple closet door job into a drywall and door framing job then I would very much like to do that.

Anyone have any experience with hollow core bi-fold doors that could offer advice?

CrpntrFrk 08-10-2009 09:48 PM

Do the doors you want fold? If not you would call(Or I would call)those doors bi-pass.

The quarter round on both sides would do the trick. I would use 3/4" quarter round. Also the track for the bi-pass doors should have some adjustment in it for your reveal.

McCool 08-10-2009 10:23 PM<- Bi fold door

CrpntrFrk 08-10-2009 10:40 PM

Got it. The quarter round will not restrict the doors unless it is too close to them. As for the baseboard, you will not be able to put that in between the doors and the walls.

McCool 08-10-2009 10:47 PM

You had to be the bringer of bad news...

Normally it wouldn't be an issue but the doors have to be ordered in because no one carries 8' doors in stock. Ordering them in takes 3 weeks and somebody is moving into the room in 2 weeks :mad:.


MT Stringer 08-10-2009 11:05 PM

Is it possible to frame out and install a jamb for the doors and then trim out the jamb?
How wide of an opening is it, and the height of the opening is 8 feet? Look at your picture. You'll need a level jamb on top for the track to mount to. And you need a place on the jamb area to mount the bracket for the bottom of the door so it can swivel.

Take another look at your photo. You need to be able to duplicate that installation with jambs and trim.
Good luck.

Edit: Pictures added.

Here are a few quick shots I took of the doors I installed in the bathroom.
Hope these help.

Green Giant 08-12-2009 10:54 AM

Is the opening already trimmed with molding? If not just add a piece of 1x4 to the top and use shims to get it level and then installing casing when you are finished. If the opening is already trimmed, use shims to get the top track level, and then you can add quarter round or similar material to the top edge. This will cover the shims and also cover the metal track.

Willie T 08-12-2009 11:28 AM

Pretty clear pictures, MT. What kind of camera are you using?

MT Stringer 08-12-2009 01:37 PM


What kind of camera are you using?
Thanks Willie. I'm a sports shooter (youth thru high school). The camera is a Canon 1D MK III with a 17-40 f/4 lens w/flash bounced off the ceiling.

Local high school volleyball starts this week and football is only a week or so behind.
My sports Portfolio w/some of my better shots is located here:

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