Remove your mat from its outer packaging and and allow it to warm thoroughly at room temperature, or warmer, before unrolling. Ensure the textured surface of the chair mat is facing upwards. (grippers or the shiny surface should face down, depending on whether you have a carpet chair mat or a hard floor chair mat). Place flat weighted items such as books on to the corners of the mat and in the centre. You mar will gradually regain an retain its flat state. This could take up to 72 hours, depending on the environmental conditions. Once thoroughly warmed through, unroll the mat onto a totally flat and even floor. We recommend using two people to do this.