Just finished building the benchwork. I did use 1/2 inch birch veneer plywood attached using the provided clips and screws. I plan to use 1/2 inch homosote on top along with indoor/outdoor carpet.
One issue I have is the height of the benchwork. I went with the standard 40 inch legs and used casters, locking and unlocking, to make it easier to move the layout away from the train room wall so you could walk around it.
Along with the 1/2 inch plywood and homosote the the overall height of the platform is 43 1/2 inches.
This seems too tall. What height does anyone have that has used Mianne for their benchwork.
BTYW: I think it is a very good, well thought out product, that did go together with very little difficulty primarily due to the instructional video on their website.
One more thing: To reduce the sound level use black wire ties to adhere the track to the benchwork. Using screws allows the sound to be transmitted through the plywood.