(dmun) "It's been discussed making the bottom slab slope forward to drain rainwater from your firewood storage. If you do this you need to mortar up your first layer of blocks so they (and the hearth slab) is lever. Most base slabs so far have been made level."
(M) I agree that the foundation slab should be poured level. Below, for whatever it may be worth, is a Copy-Paste from a much earlier posting of mine. If you want to see the images that go with this Paste, go to:
http://www.fornobravo.com/forum/show...ighlight=SLOPE (A Newbie's photo documentary Page 01)
(M) The next image shows some of the begining support for the plywood particle board - wafer board - or whatver. I had read in someone else's posting, his regret that he had not sloped the wood storage area, to prevent rain water build up, until after he poured his hearth slab! 'Good', I thought, I'll learn from his mistake not realizing
I overlooked the resulting angle cuts needed by my vertical 2x4 supports where they rest on a now sloped floor! You are probably going to have less trouble in the long run by first pouring the Hearth Slab, building your block stand, and then crawling under it and only then pouring a 1/2" slope to the front, even as awkward as that would be.
Ciao,
Marcel