I found this clever tip on the beebehavior.com site to keep nine frames easily spaced in a ten frame box.
Using only nine frames causes the bees to build out the wax further, and surprisingly you will get more honey than if you used ten frames. Also as the wax extends out further, it's easier to decap the honey with your decapping knife.
The tip is to use drawing pins on the top edge of the frames. This increases the gap between frames by about four millimetres.
I attached drawing pins (two per frame). For the frames by the sides of the box make a gap at both ends of the frames a finger width. Let's see how this works out, still waiting for a period of no rain in Auckland to help the bees bring in some more nectar.
I will report back on how the bees do with drawing pinned frames.
Do you use nine frames in your hive boxes? How do you space them out?
More photos of frames:-