Your new turf will grow best when your soil is prepared in such a way as to encourage deep, rapid rooting. Turf needs just four things (in the proper proportions) to grow; sunlight, air, water and nutrients. Grass plants obtain three of these essential factors from the soil; air, water and nutrients. You must prepare your soil, the quality of the soil and its preparation will greatly affect the quality of the lawn. The correct depth of soil with the correct structure will ensure that the grass roots penetrate evenly and deeply. This will make the lawn more drought resistant, a more efficient water and nutrient user and will lead to a denser sward of grass plants which helps to crowd out weeds and gives a more visually appealing lawn. Poor soil and poor preparation will cause Turf to deteriorate over time.
To calculate how much turf is required, measure the length and width of the area to be turfed, multiply one by the other to give you the amount of rolls required. Measuring in meters is easiest as each standard roll of turf covers 1mē. Then add 5% for shaping etc. Using a proprietary non selective weed killer recommended for killing grasses, treat the existing lawn at the stated application rate. For full effectiveness you may have to leave this for approximately 14 days.
Remove the existing lawn using a turf cutter, which are available from all reputable hire shops. This will produce green waste which can be Composted, Put into a specific green waste skip, Taken to a local authority household waste recycling center which has facilities for recycling soil and turf. You need a minimum of 100mm (4"), ideally 150mm (6") of good soil (the deeper the better). The soil should be loosely turned over and free from surface stone, clods, other debris and perennial weeds.