Greg what is it made from?

I wouldn't treat it with anything myself, the bunny will probably eat it before it decays.

Depending on what it is made from you could use Tung oil for wood, or varnish for ply or wood (look for one which is toy safe) I doubt you will find a food safe varnish.

Keith

Sorry guys, didn't make myself clear - ive got to build a hutch - the ones in the pet shop are absoulute crap and i refuse to pay £70 for them as they are so poorly built.

Would i be OK using ordinary rough sawn soft wood to build the carcase, T & G for the sides / back etc and treating them with a preservative

Cheers

made a hutch for my brothers kids out of 12mm exterior ply [untreated ]which the rabbits cant get there teeth into except when the doors are open
4 years later sighns of wear and tare but nowt you cant fix with a new panel

the recomended size is much bigger than you think for a hutch

the base [cant remember exact size think it was 43" which allows the roof to overhang 2inches either side]was as you would expect an oblong with 2by2along all edges[underneath]this gives you somthing solid to fix the sides and back to and the batton at the front supports the floor [as you have your doors on all the frontage]it also gives you somthing solid for your bricks to sit under

none off it was treated
two trays made up to cover the floor area both sides eases cleaning and most rot happens on these [in the areas used as a toilet

type a  few more details later if you like but getting boared at the min