I don't have idea about the load. Depends on how the base was not. More on the wood framing below.

The laminated floor board is not joint at the same row to provide grip but then long end joints between boards could be just floating by itself and that would be the flex point although each board is short thus strong. That is the worry of having 4 legs type of board.

Maybe can put one strip of 1/2" plywood strip to distribute weight as precaution?