Although often referred to as bark chippings, this type of natural loose fill surface generally consists of recycled softwood fibres. Available in natural and some bold colours, the standards stipulate that bark safety surface needs to be laid to a minimum of 300mm when used under play equipment. The chippings also have to be retained, usually by creating a raised timber perimeter. While it is probably the cheaper of the options available, it does require regular maintenance and topping up. Please do call us if you require any advice.