Three options are available in the latest range of stair edgings designed by Gradus to meet the requirements of Document M. These include the DDA pvc-u hardnose profiles which offer a colour contrast and slip resistance. Also available are the RNC pvc-u edgings which feature a slip-resistant front edge and 40mm riser, and the ADM collection of aluminium profiles which are 55mm on tread and riser and give a more traditional appearance.