What's the rough timing breakdown, from excavation to the day you can start framing the house walls, to build a slab-on-grade foundation for a simple master bedroom+bathroom addition? Assume an experienced crew of (5?) + plumber and dry summer weather in N. CA. I've cobbled this together from online sources but know it's waaaay off: Excavation: 1-2 days Footings: 2 days Ground plumbing: 2 days + inspection Pour gravel bed in foundation, lay vapor barrier, mesh: no idea Pour foundation: 1 day Cure concrete: 7 days Backfill: 1 day Total: 16+ days??? Many thanks.