Thinking of building a new patio roof in plastic. Rafters about 4m and a front beam of 5m.
Preferably only three posts, i.e., 2.5m between the posts.
Is a construction lumber beam 45x225 enough for the beam?
What spacing and size for the rafters would be sufficient? I was thinking of placing 45x45 across the rafters and then some cheap plastic roof from Byggmax.
Snow zone 2
