In message , Mark Rand
writes
On Sun, 23 Jun 2019 11:57:04 +0100, john west
wrote:



What might be a 'lowest' cost, but transportable floor for a wooden
shed please ?


Phenolic coated formwork plywood on top of second hand railway sleepers will
get you as good a damp-resistant floor as you can get short of concrete.

My awful, but cheap, Australian metal shed is on a base made of level
soil, then a few plastic pallets, then a layer of plywood.
The pallets came off ebay from someone who advertised them as ideal for
a shed base, and they have been fine.
The ply base is slightly larger than the shed, which has no provision
for guttering, so water from the roof hits the ply and seeps into the
floor inside.

Must look at that when I can!
--
Bill