You may want a granite slab as a countertop to help increase the value of your home. You can set hot pots and pans on granite without worrying about burning it the way you would with a laminate countertop. You may even worry less about bacteria with a granite slab. Plus, granite countertops are featured in many designer kitchens, so you'll be right in style. A granite slab is a lot more expensive than granite tile because it's one continuous piece. Since granite is so expensive, you want to make sure that you get it right the first time.

Instructions as follows:
Firstly, factor in shipping costs. This will determine whether you go to a local stone yard or shop online. Online stores might have better base prices, but their freight charges could be astronomical, because granite is heavy. You'll pay a little more buying locally, but you will also save on the cost of shipping and be able to see your granite slab in person.
 

Secondly, be prepared for variation. You may see a sample that is a few inches wide at the granite dealer. Take this home to see if it matches your cabinetry. However, when you see the actual countertop, be prepared for it to look different than the sample. Ask your stone yard if you can see the exact granite slab that you'll be purchasing, so you won't be surprised when it arrives.
 

Thirdly, pick a color that you can live with for a long time. A granite slab can cost several thousand dollars, so you want to get it right the first time. Red or orange countertops might be trendy now, but you also may be embarrassed by them in a few years when the style is outdated. Consider future house hunters who will be coming through your home. Granite tile is a selling feature, so you want to go with a neutral piece that will appeal to lots of different people.