In addition to the 1 3/4 inch thick platform I also added 2 inch risers to the base. I knew it was going to be a little low without the box springs. The mattress is a 10 inch one so it is just about right.
2020 Ford F350 Platinum, 4X4, CCLB, SRW, diesel, 12,400 GVWR
2020 Jayco Pinnacle 32RLTS, Reese Goose Box