I have a 550, not a 560; but the galley area is essentially the same I believe (unless there have been significant changes in the last few years, which is possible).
Keeping in mind that there might be tolerances and slight differences from one to another, here are the dimension on mine:
Galley Left Shelf, above the utility drawer:
18 1/2" width (side to side)
15 1/8" depth (back to front)
4.5" tall at the front, and of course angles to the back; at the back about 9.5 - perhaps 10" tall; it's taller of course; but the hatch needs to come down. I have comfortably stored a 10" French press at the back of the top left shelf (I've switched that for an Aeropress, much more compact, but let's not digress...)
Galley Right side shelf:
12 3/4" width (side to side)
15 1/8" depth (back to front)
2.5" at the front, and angles to the back of the same 9.5-10" tall usable height.
Side table (generally used for a cooler):
23.5" by 14.5", with rounded corners
Folding table that goes in front of the sink (or to the left of the sink, if you have the extension arm--which I love by the way):
31.5" by 45.5" open. When folded, 31.5" by 11 3/4" Keep in mind that also isn't rectangular; at about 21" from the flat part that goes against the trailer, it starts it's curve to the apex.
Let me know if you want other dimensions! I have some already, and if you need something I haven't measured (excluding 560 specific things) the 550 is right in the garage, winterized. I'll use any excuse to open it up and visit it in the middle of winter.
