60 X 72 Computer Left NonStudded | Black .125 Inch Vinyl Computer Left Thick Chair Mat | Clear .145 Inch Vinyl where the concrete under the

where the concrete under the carpet was not properly sealed or has no moisture barrier

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

They also need to equal the measurement entered into Side B

Chair mats create a great surface to roll on

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

60 X 72 Computer Left NonStudded | Black .125 Inch Vinyl Computer Left Thick Chair Mat | Clear .145 Inch Vinyl where the concrete under theNeed help measuring? Click here to be taken to a tutorial video. Make sure sides A & B cannot are not larger than the material's sheet size. The sum of the measurements entered into Sides J H F & D must equal the sum of the measurements entered into Sides L & N. They also need to equal the measurement entered into Side A. The sum of the measurements entered into Sides G E C & M must equal the sum of the measurements entered into Sides K & I. They also