Thickened Slab At Garage Door Opening

Mum slab thicknesses of 6 to 10 in.

Thickened slab at garage door opening.

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. The second sheet is for a similar situation however in this case i am considering option 2 where the stem wall has been blocked out and a thickened edge slab spans the gap created by the garage door. For a 5 in thick slab with thickened edges which is perfect for most garages and sheds 2x12 boards work best. 200 to 250 mm two way beam.

I will be building 10 high walls with 2x6 then put on the roof. 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. In climate zones 4 and 5 building codes require a minimum of r 10 vertical insulation that extends down 2 ft. The wall should have a key and 5 bars at 12 16 o c.

After digging down 2 of pure sand i decided to stop compact it and fill the hole with gravel. Start by choosing straight form boards. The slab should have a thickened edge at the wall with a couple of 5 s running the lenght of the opening. 2x12 cleat over the joint.

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. For a driveway or other slab without thickened edges use 2x6s. It doesn t include labour supplies such as reinforcing bar or building permit fees. 150 to 250 mm 1 for longer spans drop panels thickened portions of the slab are added at the columns this system is referred to as a flat slab and has an economical span range of 25 to 30 ft 7 5 to 9 m with minimum slab thicknesses of 8 5 to 10 in.

I am treating the footing and the thickened edge as a single grade beam similar to as shown in this typical detail. There will be a 16 x 8 garage door for. The wall should be stepped down at the the door 8 10 below the top of the slab. If your slab is heated it s a good idea to increase the r value of the vertical and the horizontal insulation to at least r 20.

I plan on reinforcing the slab with 15m bars on 12 centers both ways and put two around the slab perimeter and one inside the perimeter wall. Monolithic or thickened edge slabs can only be insulated on the exterior. You want the slab to move with the building not the driveway. That can be bent into the slab.