60 X 60 Extension Right Studded | Black .145 Inch Vinyl Build A Custom Chair Mat The sum of the measurements

The sum of the measurements entered into Sides D F & H must equal the measurement entered into Side B

you have the potential for a serious problem

it has no way to escape so it sits under the chair mat until mold starts to grow

This situation could be very unhealthy and expensive

Select your desired length in feet

60 X 60 Extension Right Studded | Black .145 Inch Vinyl Build A Custom Chair Mat The sum of the measurementsNeed help measuring? Click here to be taken to a tutorial video. Make sure sides A & B are not larger than the material's sheet size. The sum of the measurements entered into Sides C & E must equal the measurement entered into Side B. The sum of the measurements entered into Sides D & F must equal the measurement entered into Side A. The Breathe Through Option Chair mats create a great surface to roll on, but when a chair mat is placed on a carpeted