Plan and Design
The first step in the plan and design of a backyard play area is to map out the play yard. All other decisions will depend on this so take some time to think about how you want the play yard to function. Do you want a simple play yard with jungle-gym equipment and a sandbox, or do you require an elaborate play yard with zones for things such as basketball, swimming or a trampoline?
After deciding which equipment to include, determine the fall zone for each piece of stationary equipment. The fall zone is a clear, level, properly surfaced area surrounding the equipment. Its size depends on the type of equipment. For example, a fall zone for a flat-lying piece, such as a sand box, is a 6-foot border surrounding each side. The formula for determining the fall zone for equipment that rises upward is different. For a swing set, measure the height of the equipment, multiply by two, and use this number for the front and back dimensions. For example, if the swing set is 10 feet tall, the side dimensions of the fall zone are the standard 6 feet, while the front and back dimensions are 20 feet. For a lookout tower, use the same formula but apply to all sides of the equipment.
A fence is a good idea for keeping kids in and strangers out. City zoning regulations sometimes require fencing for things such as pools and trampolines so if you will be adding either of these to your play yard, check city-zoning requirements. Regardless, fencing the play area is a good idea. Install a fence after all construction is complete.
Map out your play yard area on graph paper, ensure there is room for each piece of equipment, and then mark out the plan in your yard with flags or spray paint. Call your local electric company to mark any buried power lines.
Create Fall Zones and Solid Surface Areas
Use a tiller to clear grass or plantings from the area. Lay plastic weed barrier over the area to discourage weed growth. Add sufficient filler to cover the area to a depth of 9 to 12 inches. Good materials to use as fillers are wood chips, shredded bark mulch, sand, or pea gravel.
For a basketball court, install a playing surface of asphalt or concrete in the dimensions you choose.
Purchase and Install Equipment
Be sure the equipment you install is age-appropriate for your children. If you have very young children, consider purchasing basic equipment you can add-on to later.
Start with the largest and work down to the smallest. It is critical that you follow all manufacturer instructions completely. Anchor swing sets and lookout towers in cement for better security.
To anchor using concrete, use a post-hole digger or shovel to dig a 12-inch hole for each leg and fill in with 3 inches of gravel. Set a leg in each post-hole, check with a level to ensure the equipment is not crooked, and fill in with gravel as necessary until level. Mix up some fast-setting cement and pour in. Let dry until concrete is hard and set.
Install Fencing
Install fencing, either around specific areas or preferably around the entire yard.