23mm thick black coir matting. Ideal for use in mat wells, particularly those with complex or unusual shapes as it can be trimmed to an exact fit with a sharp knife. PVC backed coir has a very uniform dense surface so gives a very neat, hard-wearing finish. If your mat well is deeper than 23mm simply put a piece of plywood in the bottom and sit your mat on top.
If you need help converting your measurements to centimeters, please see our Doormat Unit Converter.