How will you use the area under the pergola? Picture's? Surrounding area? Context is key.

I need to see the prgola usually those are open on the sides so really not much need for fan.

We’ll be using it with outdoor seating, it’s not finished yet, they just started so thats why i didnt post a picture. But there will be a wall on one side.

This is what the progress is.

We’re in Florida so it gets really hot and plus there are a lot of mosquitos

30" fan. using two depends on placement.

what about lighting? and placement? you don't want a fan interferring with the lighting, creates a strobe effect.

This is what its looking like, there will be a wall on the side of the fence. No grill underneath, just seating area. ceiling is 10ft high

Thank you everyone for your comments

One fan and I would screen that area.

Wow that doesn't look 19 x 12. I think I would do one fan 50 - 60" centered. Watch the height of the fan - the ceiling doesn't look to high.

Nice place to relax!

Maybe the picture doesn't seem like it but it is 19x12 and ceiling is 10ft high.