Slide Out Floor Thickness

[Hazman65]

I know the floors on my 2017 Whitehawk are 5/8 inch plywood but are the slide out floors thicker? I took out the u dinette and am putting in a theater seat and considering screwing it into the slide out floor but obviously don’t want anything penetrating. I guess I could bolt it down with a flush bolt on the underside of the slide out but would rather not make a penetration.

[RedHorse1]

I did a similar exchange on our 5th a couple of years back. I don’t recall what floor thickness I determined but I removed a screw holding down the dining table and measured how much of the screw was protruding and went into the slide floor. I selected a screw that would extend from the screw down points on the new seating the same or slightly more and added washers as needed to get my needed length. This worked well for me.