Amazon.com dropped prices for the Kindle Fire HD 8.9-inch tablet last week, claiming that the tablet's launch in Europe and Japan was reducing costs. However, it is more likely that Amazon is giving up most of its profit margin by implementing these price cuts, in an attempt to overcome weak demand. Mar 24, 2013 at 10:00AM.
Once the patio has been laid out, use a mattock and shovel to dig out an area equal to the size of the patio and about 5-1/2 inches deep. If you are removing turf to make room for a patio, use excavated healthy turf to patch other areas of the lawn or to create a new area of lawn.
Based on a 4 inch slab you should dig out approximately 6 to 7 inches of soil. This will allow for 2 to 3 inches of gravel to be laid down first for drainage under the slab. The first image below shows the basic steps in expanding your concrete patio.