Thickened Slab At Garage Door Opening

We set the vertical depth of the thickened slab at a minimum of 8 inches below the 4 inches of actual floor slab or 12 inches below the lowest top of slab height.

Thickened slab at garage door opening.

If your in rain country provide a depression in the slab where your door closes about an inch deep 6 wide and about 3 wider than your door opening to keep water out. The wall should have a key and 5 bars at 12 16 o c. The figure to the right shows one way that can be done. Mostly for lightly loaded.

I am leaning toward option 2 in the sketch i e. It s like a garage door re. For other options speak to your jurisdiction. Finishingconcrete concretefinishingtechniques mikedayconcrete in this video i m teaching you about finishing concrete at the garage door openings.

Pouring just a slab with a thickened perimeter is the least expensive and a perfectly acceptable option if you have good soil conditions not spongy. Extend the slab through the door opening to align with outside face of wall and thicken the slab edge locally at the door but not thick enough to bear on the wall footing. Option 2 completely blocks out the stemwall at the garage door and then a thicken edge is poured where the slab meets the footing at the garage door this seems to be the preferred method in western washington. Adding one course of block to a slab keeps the garage door framing farther up from the ground which may be necessary depending on the grade.

Some existing garage slabs will not have a thickened footing that runs beneath the slab in the garage door opening. In these cases it is often required to dig under the slab and add a footing to support the new wall above. Floating slab on grade detail at exterior door. I d also provide a 3 man door for entry.

There is a world of difference between the three types and which one will be. That can be bent into the slab. Tie the slab to the foundation wall at the door. Type 1 is sometimes referred to as a thickened slab garage foundation and type 2 is often referred to as a stem wall garage foundation and type 3 is often referred to as a hybrid stem wall garage foundation for the reason that it is a combination of both type 1 and type 2 and is often used in areas that have highly plastic soils conditions such as is found in south dakota and other parts of the u s a.

Yes use expansion joints.