How far apart do I plant my trees?
For espaliered apples we'd suggest 2m or 2.5m apart, or at a minimum 1.5m. Look at our article on espaliering, and note how the branches grow to meet it's neighbour.
How far apart do I make my rows?
This depends on what you wish to drive between them. If it's a tractor or ute (eg for mowing, harvesting, pruning or mulching) then leave between 3-4m if they are espaliered. A metre wider if they are free standing. If you plan to only walk between the rows, leave at least 2m.
Do I orient my rows North/South or East/West?
Most fruit trees do well either way, but grapes tend to be more fickle. We find more important is the vehicle access and drainage if on a slope. Planting across the contour of a slope may pool water, and cause water-logging in high rainfall area. Vehicles drive less well across the slope unless it is terraced.