What is the safest material to use under playground equipment?

1. Rubber mulch: This is made from recycled rubber and is a great choice for playgrounds as it is soft, durable, and absorbs shock well. It is also relatively easy to install and maintain.

2. Uncompacted wood chips: These are made from fresh, untreated wood and are a good option for playgrounds as they are also soft and absorb shock well. However, they can be more difficult to maintain and may decompose over time.

3. Pea gravel: This is made from small, rounded pieces of stone and is a good choice for playgrounds as it is durable and easy to maintain. However, it is not as soft as rubber mulch or wood chips, so it may not be as comfortable for children to fall on.

4. Synthetic turf: This is made from artificial grass and is a good choice for playgrounds as it is durable, easy to maintain, and provides good traction. However, it can be expensive to install and may not be as comfortable as other materials.