A cord of wood is 4' x 4' x 8' but a cord of split wood contains quite a bit more wood usually than a cord of unsplit wood.
As to cost, it depends on the kind of wood and the area you live in -- and how close you are to a major city. A cord of aspen sells for C$150 here 150 miles NW of Edmonton, Alberta, Canada. Closer than about twenty five miles to the city, the same cord costs C$250.00 delivered, not stacked. For
birch firewood the prices are C$225 and C$350 respectively.
If you want the wood neatly stacked in your yard, most venders will do it for about $25.00 -- as long as they can get their truck right beside wherever you want your wood stacked.