Racedeck has too many nooks & crannies for stuff to get lost in.
cvairwerks is right, primers and spilled powder, Detent balls, springs, C clips, E Clips, screws, pins, etc. all need to be found and retrieved / cleaned up easily.
Smooth is fast.
I'm in the planning stages of building a 10' X 12' Reloading room inside my existing 24 x 30 shop building.
Existing flooring is open concrete slab with various dirt, old paint, etc. stains.
I'll power was the floor ( And Let it dry thoroughly ) before I start the framing so that I have a...
Used conveyor belting is good too. We use it for bench mats as well.
Drill holes in the rubber and use a few strategically placed zip ties to keep the rubber in place on the bottom of the jack stand so that the rubber moves with the stand.