I am really confident in tile supporting high dynamic loads. My truck weighs 5000+lbs, and I can lift half of it with one floor jack. So most of the weight is over the front wheels of the jack, supporting close to 2.5k lbs. If he is bolting down cabinets, or something else, Should not be a problem either. But as stated earlier, if you have to drill a lot of holes it will be a pain in the ***. I recommend having a hammer drill handy, especially for the spots that are out of sight.