So will any decent builder’s merchant as well as deliver for free (if you have an account).
Its not really that common for merchants to offer cutting services for boards – I get supplies from MGM, Meyers, Walker Woodstock, Jewsons (bastards), Timbmet, Timbercenter, Thornbridge, Rowan…. non of them (in the branches I use at least) have facilities for cutting sheet material (other than some trestles and a hand saw). On my travels I’ve found few that do, but its the exception rather than the rule
I went through the whole thing going to several old established yards and looking at stacks of ply and it was all crap with loads of voids. Eventually I found someone who had a stash of birch ply and it was perfect, it was the stuff you used to get when you bought ply.
I find that most timber yards have a stock thats quite heavily skewed to the bulk purchasers nearest to that branch – so if most of the material going out the door is to builders then structurally sound boards, rather than visually tidy boards is what they’ll sell. If you happen to have busy furniture / exhibition / shop fitters close by them maybe they’ll hold some finer-finish stock but generally good stuff like birch is going to spoil on the shelf (either get damaged to turn black) if the stock isn’t turning over fast enough. If stuff like low voids or ‘A’ faces are important then ask the yard to get it in for you -it’ll be sitting in the wholesalers and usually only takes a few days to get in, but most places won’t hold that kind of stock all the time.