I am looking to place 2 - 3/4" 4' x 6' Extreme Mats together to create an 8' x 12' area on top of medium pile builder-grade carpeting. Weight bench w/free weights & dumbells on top. Will this work, and what would you recommend to keep both mats close together?

You can install our Extreme Mats over low pile commercial carpet with ease. If you like to connect these mats together, you can add some double-sided tape under the mats at the seam, or you can use mat tape on the surface of the mats at the seam, or you can use our Seam Sealer glue to connect them together.