Clear the soil of any weeds, debris, or stones and rake it over with a garden rake to loosen the top inch of soil.
Add 3 to 4 inches of topsoil to the area if the soil fertility is low. Smooth it out with a rake to break down any large clods.
Water the area starting at least 24 hours before laying the sod so that the soil is damp in the top 6 inches of the yard.
Lay the sod in a brick layout with alternating seams butted right up against each other. Cut the end pieces to fit in the area prepared.
Moisten the newly laid sod twice a day with ¼ inch of water in the morning and then again in the late afternoon for two or three weeks after planting. Reduce the watering to an as-needed basis after the roots have established the plant in the soil.