Too scared to add it up to be honest!
Timber was about £950 from sawmill about 50 miles away, it’s all (except the top strapping) either Larch or Douglas Fir and sourced from local forests, some from Dartmoor. About £100 of that was delivery

but there’s no way I could get the long lengths home. The PT strapping was about £30 from local builders merchant for 7 lengths of 4.2m…only used about 5 in the end.
Initially priced all the wood from Travis Perkins for PT kiln dried etc, that would’ve been about £650 without the 6x6 posts as most places don’t do that size, hence going to sawmill.
The post bases and beam supports were horrendous as they had to come from America, about £250 in total, which is ridiculous really, but that’s what we wanted. They are really well built (heavy!).
Also bought several different sizes of screw. All Spax from Wickes.
I bought a load of other tools and stuff to do this project, but obviously those will be reused etc.
So not cheap, although prices for timber are elevated at the moment, don’t know what it would’ve been at pre-pandemic prices.
So, including new tools, between £1500 and £2000 I reckon.
Took me about 2 and a half weeks but I didn’t work on it every day….was only meant to take about 5!!!