60 X 96 Extension Right Studded | Black .145 Inch Vinyl Extension Left Thickest Chair Mat | Clear .250 Inch Vinyl The sum of the measurements

The sum of the measurements entered into Sides G E C & M must equal the sum of the measurements entered into Sides K & I

but when a chair mat is placed on a carpeted area

They also need to equal the measurement entered into Side B

A beveled edge can be useful when you need to transition smoothly on or off a chair mat

The sum of the measurements entered into Sides D F & H must equal the sum of the measurements entered into Sides N L & J

60 X 96 Extension Right Studded | Black .145 Inch Vinyl Extension Left Thickest Chair Mat | Clear .250 Inch Vinyl 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