Hi Ian,
I'm currently building a garden shed 3 x 2.4m using the following:
150X50x2400 H4 treated pine @$10.41 each
150x50x3000 H4 @$15.12
I'm going to use 4 or 5 150X50X2400 for the joists so all up for that is around: $103.11
I had some round logs 90mm with I'm using for posts. However 90x90mm H4 3m posts, will probably set you back $30 - not sure exactly.
Chipboard (yellow tongue)3600 x 900 x 15mm = $36. I was going down the plywood path @$55 per sheet, but saved a few bucks with the YT. One side appears to be painted with clear stuff, the otherside raw chipboard. Even though my flooring will be off the ground by about 250mm, I'm planning of just putting a coat of bondcrete to seal it.
I cheated and used rapid set @ $5.60 per bag.
I guess all up its about $300 much cheaper than a concrete slab, its relatively easy to do.
PS: at the time of writing this, I've got 5 stitches on my left thumb after an accident with my drop saw
. As such, I'm going to now have to supervise the other 1/2 on how to continue construction
.
so if you go done this path - be careful with powertools, especially the ones with blades or teeth!
When complete I;m cladding it with colorbond corrugated iron. 762mm width at anywhere between $12-15 l/m - acutal width is 820-850mm (Lysaght, Stratco etc).
Cheers, Norm