One of the specialities with some artificial turf manufacturers is their playground turf with safety being a major consideration when supplying and installing. The key feature is that the playground synthetic turf provides safety to the children playing on it to a certain standard for falls from a particular height. The standard in question cites standard ASTM-04 Standard Specification for Impact Attenuation of Surfacing Materials within the Use Zone of Playground Equipment. This is the safety standard that specifies the fall height for which the surface must protect against a serious head injury.

In order to meet the safety standards synthetic turf installed in playgrounds must be soft but it also must be soft enough so that it is not abrasive if a child falls while running on it. A product such as FieldTurf's FallSoft synthetic turf is installed with a water permeable safety pad that sits under the infill. This pad gives the surface a fall height safety of up to 9 feet which exceeds the ASTM requirements. It is possible to install different thickness shock pads depending on just how padded you need the surface to be.

There are quite a lot of underground base materials that are laid down before the actual synthetic turf is laid. The following cross section of the playground synthetic turf from Southwest Greens Grass Solutions gives you an idea of what is involve.

You can see the where the shock absorbing pad lies underneath the synthetic turf, the depth of the pad in this image is .75″ but this pad can be thicker if required.

When you're looking for a suitable synthetic turf surface for any playground it's the G-max score that is important. The G-max score of a synthetic turf system can be altered by adding or removing rubber granules on the surface. The shock pad underneath provides the base protection upon which to build the rest of the impact attenuating properties.