A difference floor levelling question

[Vettedrmr]

Greetings, folks! Haven't posted here much due to life, but that's probably about to change when I get moved up to my new house in Hot Springs, AR.

First big project is a detached 2-car garage that was built with the intent of not having a front door (I think). The garage (and the house) is built on a hilly lot, and the foundation at the front entrance to the garage (20' wide) has a lateral slope built into it of about 5", ramping up into the garage until it's generally level about 3' into the garage. I have some photos documenting this that I'll post up this evening.

I'm going to be installing a 20 x 8.5 ft. Clopay door on the garage and am trying to figure out the best way to seal this 5" slope. I've thought of:

1. a flexible seal on the door frame
2. a rigid wedge between the bottom of the door and the floor
3. pour a levelling coat of concrete on top of the existing slab

The floor is pretty clean, no oil stains, and isn't polished so there's some mechanical roughness a new surface could "bite" into.

Again, I'll post photos tonight.

Thanks for any help, and have a good one,
Mike

 

[dandan111]

I would think the seal on the bottom of the garage door would seal it up fine. A picture would help. I'm sure the pros will tell us soon.

 

[slickgt1]

Seal on the door, rubber threshold on the floor. Easy.

 

[Vettedrmr]

Re: A different floor levelling question

Sorry it took so long to get back, I changed my email address and couldn't verify it from my work laptop.

I've done some digging into door seals and thresholds, and I can't find anything that tells me how much of a gap these seals can fill.

Also, with the door being 20' wide, do I need to do something to support across the bottom to keep it from sagging over time? A friend suggested some threaded rods with a rounded head, like a lag bolt. Overkill or great idea?

Thanks for the suggestions, and have a good one,
Mike