Building A Garage On An Existing Concrete Slab

If the area where you are planning to use the cinder blocks is already covered with a concrete pad you can easily build a cinder block wall right on top of the concrete.

Building a garage on an existing concrete slab.

From this red line measure in the width of the sill plate 4 inches if you are using 2 by 4s 6 inches for a 2 by 6. Before you get started throwing up a shed on your concrete slab you ll need to give it a thorough inspection. Figure 2 l concrete foundation anchor bolt. The type of foundation or footings and slab you build your garage on will depend on your budget the size of the garage the grade and the soil conditions.

If you re fortunate enough to have a pre existing concrete slab in your yard then you are already halfway to building extremely solid storage shed. The first step in building the garage foundation is pouring the concrete which costs 140 per cubic yard. A 12 by 24 by 6 slab equals 7 41 cubic yards and will cost about 740 for concrete poured directly by a chute from a mixer truck. Concrete pad to be poured figure 3.

The type of fastener used to hold the building or structure to the pad is determined by whether the pad is in place or is to be poured. Measure and mark on the existing concrete the points of your corners for your shed. Using a chalk line with red chalk snap a line that will mark the outside line of your shed. Cinder blocks are a great tool for building garden walls or storage structures in your yard.

I would use a concrete saw to cut out two foot by two foot squares at each column location remove the concrete auger holes as appropriately designed by the building engineer set the columns in the hole per the plans then form and fill with premix around the top of the column to complete the slab. 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.