hm.. don't know. I have not built anything in 2 decades so it was a price shock and I won't buy OSB for anything, not durable and the chemicals in it... yuck
this is sort of the coop I am building. I made some changes- like substituted sheathing for the crap OSB and hardware cloth for chicken wire and putting it on wheels and metal roof instead of shingles irony here the metal roofing was the cheapest part!)
We bought materials at Home Depot
3 pt 4x4
4 15/32 4x6 sheathing plywood
3 19/32 4x8 T1-11
2 25' rolls 1/2" hardware cloth
roofing material not yet bought
wheels not yet bought
2 screw eyes
1 14 x 21" window I got cheap on ebay ($19)
Wow that's a nice looking coop!! Mines going to be rather simple I think so that is probably part of it plus we didn't get any siding or anything.
I think one of the biggest costs involved with a coop and run isn't so much the lumber, but the hardware cloth. We were fortunate that we have a local company about 45 minutes away that specializes in metal screening and they sell 100 foot rolls of 48" 1/2" hardware cloth for $92. That's pretty much unheard of. Anywhere else we looked, online or local, we were looking at $200+ for that amount.
But really when it is all said and done, it still all adds up depending on what you are doing. Roofing materials are costly and paint can be too. We'll be lucky if our full materials cost comes in under $750 for the full coop and run. But at least we know it is built strong, secure and pretty darn predator resistant. And we can build it how we want. It will last for years upon years.
That is very very true!!!! Fortunately we have lots of shingles laying around from redoing the roof so that's free but paint and hardware cloth will probably cost a lot.
I think 750$ is a reasonable amount to expect to spend, some thrifty engineers can do it for less...but I found that when I got a good deal on hardware cloth (at a farm auction) I sprung for the more expensive hinges, added a couple extra latches for security, and decided to side the beauty in locally sourced, rough-sawn pine when I should've just used plywood.