Before you lay sod, you should make sure that you find the right variety. Most of Texas lies in a transition zone where the summers are too hot and humid for cool season grasses and the winters are too cold for most warm season grasses. When purchasing sod, inquire about grasses like tall fescue, which are suitable for the Texas climate. And once you lay the sod, take care to water it frequently or it will dry up under the hot Texas sun.
Remove all weeds and other debris from the area. If you use a herbicide to remove any weeds, make sure that you wait at least two weeks after applying the herbicide before you lay the sod.
Rototill the soil to a depth of 4 inches. Remove any rocks or roots that you may turn up along the way. This is not an essential step, but it will encourage the sod to establish roots more quickly. Rooted sod is much more equipped to stand up to the hot Texas sun.
Go over the ground to be planted with a lawn roller.
Fill in any low spots in the lawn with a quality commercial top soil. The top of the area to be sodded should be 1 inch below below any sidewalks, sprinkler heads or driveways.
Water the ground. Give it approximately one-half inch of water the night before you lay the sod. The ground should be damp when you lay the sod the next morning.
Rake the ground.
Lay the sod. Start on the longest, straightest side. Lay the first row of sod strips along that side. Make sure that each strip is pressed tightly against its neighbor without buckling or overlapping. The next row should be pressed tightly against the first and laid so that the seams of the first row do not line up with the seams of the second (like rows of bricks). Cut strips of sod to fit irregular areas with a small hatchet or knife.
Go over the sod with a lawn roller. This will give the sod good contact with the soil.
Water the sod with 1 inch of water within 30 minutes of laying it. The soil just beneath the sod should be quite moist. Continue to give the lawn at least 1 inch of water each morning unless it has rained. After one week, give your lawn more water less frequently. To be sure that the sod receives enough water, pull back the corner of a few sections of sod and stick the head of a screwdriver into the soil. It should slide in easily and reveal that the top 3 inches of the soil is moist. If not, give the sod more water.