This is what I've been doing for the last few days, among other things:
You might recognise it as my standard joist layout for an 18-foot wooden floor. We'd have done this last year but we didn't have the time or the money. This year, at least we have the time. (The woodyard has the money.)
It's taken a bit longer than previously, because this week temperatures have been in the mid to high 30s. Centigrade. And 38C is a bit hot to do much sawing by hand - even in the woods. Yesterday, I actually had to go and sit in a lake up to my neck. Something everyone should do more often.