UFC 4-740-14
1 August 2002
6-5.4.1.2
Do not use the following surface materials. Disadvantages of these
surfaces can be found in the CPSC Handbook.
Engineered and natural wood fiber
Engineered loose rubber and ground tires
Any materials that are subject to compaction, ingestion, flammability, and
wind dispersion.
6-5.4.2
Wheeled Toy Pathways. Use materials for pathways that allow for use
during inclement weather. Acceptable materials include concrete, stone or masonry
pavers, rubberized surfaces, or rubber matting. Design so the edge of pathways do not
create trip hazards and taper for transitions. Provide smooth surfaces for wheeled toys
that have joints not wider than 12 mm (.5 in.) because they may cause toys to tip.
Design all pathway surfaces to allow access by those in wheelchairs--design the slope
of paved surfaces to comply with ADAAG requirements. Consider the following when
designing the wheeled toy pathways:
6-5.4.2.1
Modular Paving. Do not use modular paving in areas intended for
infants. Pavers introduce joints and textures in the paving surface that can become
uneven over time if they are not laid over a concrete base, presenting a tripping hazard.
Install non-grouted interlocking type pavers on sand placed over a continuous concrete
setting bed. Install brick, stone or other non-interlocking type paving in grout over a
continuous concrete setting bed. Do not install non-interlocking paving on sand in play
areas, as the modular units may settle unevenly, resulting in a hazardous irregular
surface. Where winter freezing is common and where poor soils occur, use a gravel
base under concrete and reinforce to prevent cracking and deterioration.
6-5.4.2.2
appearance of concrete and reduce glare. Avoid smooth steel trowel finishes, which
can become slippery when wet. Where winter freezing is common and where poor soils
occur, use a gravel base under concrete and reinforce to prevent cracking and
deterioration. Consider local soil and climatic conditions for structural requirements.
Cast-in-place concrete over a well-compacted sub-grade is the most durable,
maintenance-free paving material for hard surface areas.
6-5.4.3
Other Hard Surface Areas. These areas include sidewalks, seating
areas, patios, and areas for hard-surface games. Use a variety of surface
configurations and materials in these areas to increase the impression of "naturalness"
in the play yard. Specifying and supervising during construction ensures excellent
compaction. Compaction greatly affects the serviceability of the surface materials.
Acceptable materials for sidewalks, seating areas, and patios include concrete and
stone or masonry pavers. Use brick and other types of modular paving for sidewalks to
reduce the scale of these environments. Design the edge of sidewalks to not create trip
hazards, and taper for transitions. Design sidewalk surfaces to allow access by those in
6-9
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