[Advanced Design]

Marc,

Here is the seat riser sitting on the floor section I removed. We are looking at it from the front toward back.

Pic 1 red circle is where the front support ends and aligns with the hole in the seat riser.

Pic 2 is the original floor under the seat riser. As I thought I only had one support.

Pic 3 is the bottom of the seat riser showing the hole that aligns with the support.

The supports originally went from this position toward the rear. The floor section in front of the risers is depressed.

Hope that helps. Need anything more please let me know.

Ogre - They are roomy. I figured I put 55 sq ft of floor in mine.