Examine your yard and determine the areas you want to be able to access or the areas where there is a transition between uses of the yard. Also take note of locations where the yard is too steep for walking comfortably or safely.
Measure the areas you have identified to determine the total vertical change between the lowest and highest points. For example, if you have a steep area in your yard that has a drop of about 3 feet the total vertical change would be 36 inches.
Determine the best number of steps for the area you are designing. For comfortable climbing, risers should be 8 inches or less in height. In our example of a 36-inch drop, if we have 8-inch risers we would need 4 1/2 steps. However, since you can't build 1/2 a step, round it up to 5 steps.
Determine the depth of each tread. As a general rule, the height of the riser multiplied by 2 plus the depth of the tread should be between 24 and 27 inches. In our example, a riser of 8 inches multiplied by 2 is 16 inches. That means our tread could be between 8 and 11 inches deep and still be a comfortable design for climbing.
Determine the best paver or pavers for your needs based on the measurements you have calculated. Choose all of one kind or shape of paver or mix the types of pavers you use. For example, use all of one kind of stone for the risers and different stones for the treads, or use one type of stone for the steps and bricks to line the sides.