Home gym flooring
Before going down this route, I tried thin rubber strip mats to cover the floor. Even with double sided adhesive tape, they moved about and tore under the rowing machine.
This option is industrial strength. Each metre square requires two people to manipulate them. They are thick, very durable and are not going anywhere once placed. They are easy to mark up and cut to size with a craft knife.
I've had them in place for a couple of months now and have no complaints.