I can help
Do you have any plans or sketches of your proposed configuration that you can share with me?
There is a button on the Chat Window that lets you attach files.
Let me know when you come back online.
So you want something similar to "The Billstage!" ?
I have several questions:
1. So you want a 40' open front with no posts?
2. How deep will this roof cover be (distance from front to back of roof)?
3. What city and state are you near? I assume this is a summer thing and no snow load, correct?
4. What type of roof covering will you have?
OK, so the roof will span 40' side to side and and span 30' front to back, correct?
You are not going to be able to get conventional lumber longer than about 24'. How are you going to be able to span 40' across the front and span 30' front to back?
You are not going to be able to build up conventional lumber members, with splices, and span 30' to 40' distances.
Can you reduce your cover to 24' deep and then add a couple of posts 8' in from each end of the 40' dimension. This way I can work with 24' long lumber.
Let me know your thoughts.
Can you draw a rough plan view sketch of what you are thinking with some dimensions and attach it to the Chat Window. If you can not scan a sketch, you can always take a close-up picture of the sketch with your phone and attach the picture.
Super, no hurry.
Talk to you soon.