I had a 1907 house where the porch windows were like that. It looked really good.

susan and jn --- yay! thank you. !!

I agree, i think the two outside being opposed would make the center window akward if it opened. And with all three operable, you get better airflow.

I can see it either way. Most of it really depends on prevailing winds and sightlines that are site specific.

What will be your window treatments? If you have draperies, and all 4 casements open in the same direction, one of the end casements will have its opening behind the stackback of the drapes. Solutions would be to have that end casement handed the opposite of the other 3, or make that window a stationary window, or not have draperies.

Your photo appears to show draperies, with the left-most window either handed the other way or stationary.

If each window will have individual blinds, try to get blinds that when fully-opened will have narrow compressed stackbacks at top. When the casements are opened, you don't want their blinds flapping. That is why people often get draperies for casement windows. When the draperies are pulled open, you can open the casements with no flapping blinds.

You could forego window treatments, but it's a first floor, so depends on your privacy situation.

fredajune, sorry for my late thank you! I actually grabbed this photo from google. In my case I have 4 windows. I am not really a curtain person so appreciate your advice on blinds (because I have been in 'flapping blinds annoyance' situations in the past :) These are also for me 1st floor porch so I may have to reconsider my previous curtain aversion. Thank you.