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29th December 2010, 09:10 PM #1
SSlab V Timber floor and many other questions
Thanks for the previous advice re truss roof - works out much cheaper than expected.
As stated previously I intend to build a large 4 car garage for material storage with a granny flat to live in while building first to get experience and to ensure that I can undertake the larger project
My first question Is that while I prefer to have a timber floor as stated below is there any substantial price difference between slab and timber floors (know will need slab for garage/granny flat)
I would prefer a raised timber floor rather than a slab. My initial thought was to purchase pre made adjustable steel piers but when I costed them at at about $100 each and on my plan would need a about 150 at 2 metre centres my thoughts were to look elsewhere.
I can probably access either used C section or SHS at about 100mm dimension. My thoughts were to weld a plate about 200mm square and have about 3-400mm cube concrete pad for each pier, something I can do myself with the assistance of unskilled labour. Would this be strong enough? ( I know I will need a draftsment later to finalise matters but want to to do as much preliminary work as possible).
For bearers I am easy depending on cost whether recycled hardwood or steel depending on price and availability ( for philosophical reasons I want to recycle where possible)
Bearing in mind 2m meter centres would 100 X 100 hardwood or 100X 100 SHS be OK for the bearers and 100 X 50 hardwood for the joists at about 400- 500mm spacing depending on the type of flooring. (could I get away with 3 X 2 m pier centres with larger bearers to reduce number of of piers) I will probably use recycled plywood flooring (have access to clean used formwork about 17-18mm thick and for living areas would use recycled hardwood floorboards where I wish to have exposed timber. Would ant capping be necessary or would a regular chemical treatment suffice (in Berry NSW area)
As to framing I intend to have steel portal (posts 3 m above floor height to give 3m ceiling) framing at about 2 -3 m centres depending on window and door location with a steel ring beam to which the truss roof will be attached. Any suggestions for size of posts and beam ( will have lightweight steel roof), ideally would build portal and frame and roof before floor.
I know it seems to building from roof down rather than floor up but my aim is to have a enclosed area where I can build at my leisure using recycled non load bearing softwood stud frames which I can build in a modular fashion and then have a group construction "party" where it all comes together, relatively quickly.
The external walls will be weatherboard or something similar to give a New England style. (much in the same style as the dreaded Breakfast Point development in Cabarita Sydney or the Truman Show for lovers of bad movies))
Read the full thread at RenovateForum.com...
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