Not a lot of slope on that slab, but something. The one thing I lack in my shop is proper slopes to drainage. The original owner laid what he fondly imagined to be a level floor slab, and saw no need for floor drains. So this week has been typical winter muck with snow melting off quads and trucks looking for somewhere to go. It finds its way unerringly to the man door next to the big overhead door, so every time I unlock and walk in, there's a 1/4" deep puddle waiting for me.
We've talked about emptying the shop out for a week, hammering in a centre drain and laying a topping slab over it all to create proper drainage, but agh what a lot of work. There's a LOT of equipment in there and no other covered storage on site for it. The drive and apron would have to be lifted another 4", and they're already on the steep side as it is.
So we have a big floor squeegee and a push broom to get the worst of it out under the doors. Run a big floor fan overnight to push off moisture. It's low grade annoying, we have to live with it. The location is way too convenient and we're too settled where we are to contemplate selling and buying something else.
Anyone thinking about a shop build, do the floor drains or slope it from the back out toward the doors. Easy and cheap at time of construction, really hard to do later.