Browse Forums Renovation + Home Improvement 1 Oct 09, 2011 9:30 am Greetings all, My shed is an old apple packing shed of approximately 20 x 9 meters. It also has a lean-to section of approximately 20 x 5 meters. The shed was built on a mild slope upon a very rough slab. The lean-to was an addition added sometime after. The floor of the lean-to wasn't leveled and is simply dirt. One end drops below the slab by about 30 cm and the other is close enough to level and continues to rise above the slab from that point. This lean-to area is quite a large space that I'd like to incorporate into the shed. My intention is to wall off the two ends and partition the space into 3 separate rooms with an entrance from within the shed. I'd like to keep the cost to a minimum and I intend to use recycled materials for the bulk of the framing. I'm hoping to get away with some sort of timber subfloor structure, but I've never done it before and I'm uncertain about requirements. A slab of this size well exceeds a virtually non-existent budget. I suppose what I'm really wondering is, how close to the ground can the subfloor be built? Are there clearance minimums that have to be met? The partitioned rooms will be properly finished, so a leveled dirt or gravel floor isn't what I'm after. Drainage is also a necessary consideration given the slope of the block. The water presently drains through this lean-to to a dam further down the slope. Once permanent drainage considerations are made, I can't think of any reason I'd have to access the space beneath the floor. What sort of clearance requirements exist for this sort of undertaking? What I'm hoping to hear is that there aren't any and that I'll be able to excavate just enough to create some breathing room below the joists and bearers to get them off of the dirt. Despite the natural drainage channel running through the lean-to, the ground is very dry and I've yet to see evidence of termites anywhere on the 3 acre property. The house is weatherboard from the 40s. Thoughts and ideas much appreciated. Cheers, J.P. Re: Subfloor Clearance for Shed Extension 2Oct 11, 2011 2:35 pm I think the min from the under side of the lowest point (bottom of Bearer) is either 400 or 600mm for anything that is to be "serviced" regardless of how often you think it needs servicing Re: Subfloor Clearance for Shed Extension 3Oct 11, 2011 3:13 pm What constitutes something to be serviced? There won't be any plumbing and the floor will be as basic as lino over particle board. Theoretically, the subfloor structure could be serviced, if ever the need arose, from above. Does this logic enter into the equation? Building Standards; Getting It Right! When my house was built (over 7 years ago), the post brackets were done to allow for concrete porch, but they didn’t allow for the planned stone paving. I’m finally… 0 1924 Jimbo73 I would use heaps of adhesive on each sheet and screw rather than nail. use as many as you like cheers Simeon 1 4074 XCEM Alpha flooring seems to relatively new and I could not found any reviews. Have you or someone you know have used it and would recommend over other subfloor options?… 2 7597 |