Forum Title: Help Installing Door Jamb Kit Over Unlevel Floor
I am installing a new bifold door and jamb kit over an unlevel floor and I have a couple questions. 1. I'm having carpet installed and am doing this now without any carpet, so I planned to hold the jambs 3/8 off the floor to allow for the carpet to be tucked under properly. But after that, what should be the overall height of the jamb so the door fits propertly over the carper? I assume the height of the jamb should be slighty higher than a standard installation over solid flooring such as hardwood. 2. The floor is about 1/2-5/8 out of level over the 27 rough opening (24 bifold door to be installed). Is it as simple as constructing the jamb kit on the floor first, cutting the short side 1/2 ot 5/8 shorter than the long side and installing it that way but then level the top of the jamb first then the sides? 3. It's a solid pine 6-panel bifold. I assume then I install the hinge side on the low point so that it opens properly and then trim the bottom of the door the same. I've installed 4 other bifolds but never over a floor that was unlevel. So any help is appreciated!
Category: Windows & Doors Post By: WANDA FOSTER (Council Bluffs, IA), 01/24/2019

Dinki, what about applying a thin plywood to the back face (inside face) of each section your garage door? This would secure all the individual stiles and rails and keep them from racking. Just be sure to not attach any floating panels to the plywood. I would also check your hardware to make sure it will support the additional weight of the plywood. Jim

- ServiceMaster Clean (Franklin, TN), 02/23/2019

Pulpo - If you don't use jambs are you using the RO framing to attach the door to? Zonabb - If the RO header is level you can just measure both sides and remove the difference on one side jamb. If not, I would put the jambs into the RO and level the head jamb using shims on the low side. That will give you a measurement of how much you have to cut off from the long side jamb. Be careful about how you trim the bottom of the bifold. The clearance will change as the door is opened.

- DARRYL HALE (Flagstaff, AZ), 03/03/2019

Yes, that's what I'm doing.

- Allan G. (Austin, TX), 02/25/2019

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