On 08/03/2014 12:59, David.WE.Roberts wrote:

Can't at the moment decide about the beds - we have seen some made from
seriously thick sleepers which look nice, but if this is going to be a
once built last forever arrangement then we might build in brick and block.

If you want something made of wood that will not rot and will last
years, then go for old railway sleepers made of jarrah wood. The only
problem is if you want them cut to size - even saw blades tipped with
tungsten carbide can take quite a time to cut through seasoned jarrah.

There are a number of suppliers in the UK.

--

Jeff