Floor drain opinions wanted

I met with the concrete contractor this evening to go over options and here’s what we came up with. We’ll be putting a trench drain (blue) in 15’ from the doors and 6’ from either side wall. The first 30’ of the shop will all drain toward the drain, the remainder of the shop will be flat. He also has a 40x60 shop and he later his out very similar, other than he did his drain at 20’ and sloped the first 40’ and left the remaining 20’ flat and he really likes it laid out that way.

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