Thickened Slab At Garage Door Opening

I am treating the footing and the thickened edge as a single grade beam similar to as shown in this typical detail.

Thickened slab at garage door opening.

I will be building 10 high walls with 2x6 then put on the roof. After digging down 2 of pure sand i decided to stop compact it and fill the hole with gravel. 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. If you can t get long enough boards splice them together by nailing a 4 ft.

The wall should have a key and 5 bars at 12 16 o c. 200 to 250 mm two way beam. For a 5 in thick slab with thickened edges which is perfect for most garages and sheds 2x12 boards work best. You want the slab to move with the building not the driveway.

Monolithic or thickened edge slabs can only be insulated on the exterior. 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. 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. 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. That can be bent into the slab. For a driveway or other slab without thickened edges use 2x6s. 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. The cost of concrete for a slab garage floor includes the delivery of concrete and any material overages as a result of waste. In climate zones 4 and 5 building codes require a minimum of r 10 vertical insulation that extends down 2 ft. 2x12 cleat over the joint.

Mum slab thicknesses of 6 to 10 in. As per the present market rates the average cost of concrete for a 400 square foot slab the typical size for a two car garage. It doesn t include labour supplies such as reinforcing bar or building permit fees. 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.