So my Planning documents and con docs are A3.
A builder says my A3 con docs are information dense which he likes but it’s not great (for him) reviewing on a his laptop, tablet and phone. They’re great on my 1440p 27" monitors.
A3 overviews are ok, he says, on laptop/tablet/phone. He prefers A2 on-site.
A recent project I did some overview documents for the engineer on A3 at 1:75 which he was not keen on because his scale rule didn’t have 1:75.
They were 1:75 because I needed to fit them onto A3.
Engineer says 1:100 or 1:50 is better because if the paper size is A1 or A2 it scales down nicely printed on A3.
Historically I done A3 because I could never afford (or actually want to get) a larger format printer. These days I don’t provide hardcopies. If the client or builder wants hardcopies I say go to a print shop.
What’s your experience?
(I do domestic alterations, extensions, conversions and the occasional new build single dwelling)