The lip on my beams is perfect for "2" lumber, so I used 2x12's cut to fit between the beams and aluminum thresholds to bridge between rows. Got 2x12x16s at Home Depot and they cut it to the required lengths for free.
Wow your setup is awesome RayI have to give you credit for what I've got so far. I'm loving it so far.
I know what you're talking about now. Where did you get the aluminum threshold?
