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PLAYGROUND SURFACING MATERIALS
SECTION 4 OF THE CONSUMER PRODUCT SAFETY COMMISSION'S OUTDOOR HOME
PLAYGROUND SAFETY HANDBOOK
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Select Protective Surfacing
One of the most important things you can do to reduce the likelihood of serious head injuries is to install shock-absorbing protective surfacing under and
around your play equipment. The protective surfacing should be applied to a depth that is suitable for the equipment height in accordance with ASTM
Specification F 1292. There are different types of surfacing to choose from; whichever product you select, follow these guidelines:
NOTE:
Do not install home playground equipment over concrete, asphalt, or any other hard surface. A fall onto a hard surface can result in serious
injury to the equipment user. Grass and dirt are not considered protective surfacing because wear and environmental factors can reduce their
shock absorbing effectiveness. Carpeting and thin mats are generally not adequate protective surfacing. Ground level equipment - such as a
sandbox, activity wall, playhouse or other equipment that has no elevated play surface - does not need any protective surfacing.
Maximum fall height for this playset is 83''.
Loose-Fill Materials:
Maintain a minimum depth of 9 inches of loose- fill materials such as wood mulch/chips, engineered wood fiber (EWF), or shredded/recycled
rubber mulch for equipment up to 8 feet high; and 9 inches of sand or pea gravel for equipment up to 5 feet high. NOTE: An initial fill level of
12 inches will compress to about a 9- inch depth of surfacing over time. The surfacing will also compact, displace, and settle, and should be
periodically refilled to maintain at least a 9- inch depth.
Use a minimum of 6 inches of protective surfacing for play equipment less than 4 feet in height. If maintained properly, this should be adequate.
(At depths less than 6 inches, the protective material is too easily displaced or compacted.)
Use containment, such as digging out around the perimeter and/or lining the perimeter with landscape edging. Don't forget to account for water
drainage.
Check and maintain the depth of the loose-fill surfacing material. To maintain the right amount of loose-fill materials, mark the correct level on play
equipment support posts. That way you can easily see when to replenish and/or redistribute the surfacing.
Do not
install loose fill surfacing over hard surfaces such as concrete or asphalt.
Poured-In-Place Surfaces or Pre-Manufactured Rubber Tiles:
You may be interested in using surfacing other than loose-fill materials - like rubber tiles or poured-in-place surfaces.
Installations of these surfaces generally require a professional and are not "do-it-yourself' projects.
Review surface specifications before purchasing this type of surfacing. Ask the installer/manufacturer for a report showing that the product has
been tested to the following safety standard: ASTM F 1292 Standard Specification for Impact Attenuation of Surfacing Materials within the Use
Zone of Playground Equipment. This report should show the specific height for which the surface is intended to protect against serious head injury.
This height should be equal to or greater than the fall height - vertical distance between a designated play surface (elevated surface for standing,
sitting, or climbing) and the protective surfacing below - of your play equipment.
Check the protective surfacing frequently for wear.
Placement
Proper placement and maintenance of protective surfacing is essential. Be sure to
Extend surfacing at least 6 feet from the equipment in all directions.
For to-fro swings, extend protective surfacing in front of and behind the swing to a distance equal to twice the height of the top bar from which the
swing is suspended.
For tire swings, extend surfacing in a circle whose radius is equal to the height of the suspending chain or rope, plus 6 feet in all directions.
2H
2H
H
L
6 ft.
6 ft.
6 ft.
6 ft.
L+6 ft.
6 ft.
6 ft.
Use Zone for Single-Axis Swings
Use Zone for Multi-Axis Swings
Denotes Use Zone with Protective Surfacing
Denotes Use Zone with Protective Surfacing
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This information has been extracted from the CPSC publications "Playground Surfacing-Technical Information Guide" and "Handbook for Public
Playground Safety"Copies of these reports can be obtained by sending a postcard to the: Office of Public Affairs, U.S. Consumer Product Safety
Commission, Washington, D.C., 20207 or call the toll-free hotline: 1-800-638-2772