I decided to replace the edging for the floor with hardwood as opposed to softwood, I know that if the caravan is sealed properly then the softwood shouldn't get damp etc, but having used hardwood on the boat I saw it as a no brainer.

I picked up the hardwood and also the plywood from Beers Timber, where I always get my timber. I couldn't have rebuilt Sabrina without them due to the cost that some timber merchants charge for hardwood.

If you are in the Northwest and are looking for timber then pop in, they have several branches:

Beers Timber & Building Supplies, 
Darlingtons Industrial Estate, 
Chester Road, 
Gayton, 
Wirral, 

You can see the first section of floor in place, the ply is glued to the support timber using Gorilla Glue, a waterproof wood glue.

You can see the first piece of foam dry fitted:

I had problems finding replacement foam locally but managed to find some on Ebay, you can't use the normal insulation from places like B&Q, you need the close tolerance stuff. I picked mine up from Coleshill from a firm that seem to do insulation for everything. I can thoroughly recommend them if you are stuck for foam for your own project:

DAWN CARROLL

Unit 2 Roman Way Coleshill West Midlands B46 1HG United Kingdom  carroll.d@btinternet.com    http://myworld.ebay.co.uk/eatingrose789rugby/ Once I'd cut the side piece out it was time to start striping the rear, I planned to remove 31cms of lower ply, 45 of foam and 60 of the upper ply so the laminate created has an over hang of at least 6"

Once I'd chopped the floor and cut the foam it was time to bond it in place, I bought my resin from The Glue People and spoke to the Managing Director Richard who suggested I use their EM400 resin, I ordered 6.5KG of it which as it turns out is about half of what I needed.  They can be located at

http://www.thegluepeople.co.uk

The EM400 mixes like most 2 pack products, but as opposed to Epoxy resin that I'm used to it is more like a cream, very easy to apply, although if you were mixing by hand it will take some time. I bought a cheap food mixer from Tescos and used that, then threw it out, the completed lower layers of the floor is looking good:

Tomorrow I'll cut the top pieces of ply and dry fit those while I wait for the next batch of glue to arrive and I'll also rebuild the door frame and seal it back in place. The rear of the caravan has its strength back so I can sort the cracked aluminium above the door out at the same time.