Measuring

This drawing below shows a lawn that is very common in many home gardens. The lawn shown has curves on both sides all you would need to do is measure the width at the widest point of the lawn , from left to right. Remember to measure in a straight line even and at the widest part of the garden.
 
As this lawn is under 6m in width you would simply order two rolls, one 4m wide and the other 2m wide by the required length, which on this example would be 8m. The two rolls are then joined together with tape, so you will need a lenghth of 8m tape.

1. Measure to the widest points
2. Allow a little extra lenghth for trimming
3. Order tape and or other glues that you will need