Browse Forums Renovation + Home Improvement 1 Dec 11, 2013 9:50 am Hi, I'm replacing a badly rotted floor of a bathroom in a beachside suburb. The House is approximately 150 m from the beach and the soil is 90% or more pure sandy. Could somebody out there give me an indication of what the current sub floor framing requirements are , i.e. size and strength of floor joists and bearers and also the general requirements of acceptable stumps (for bearers) and acceptable material i.e. concrete or timber. Also, are bottom plates to the stumps still required? I am an ex professional in the building business, but have been out of it for 30 years and hence I am completely out of touch with the current regulations. Any help would be greatly appreciated! Re: Sub floor framing to bathroom 2Dec 11, 2013 9:59 pm Stumps in your case should probably be 230 x 230mm brick on concrete pads @ 1500mm centres. Bearers should be 100 x 75mm hardwood @ 1500 centres and 1800mm spacings max. Joists should be 100 x 50 hardwood @450mm centres depending on what type of floor sheeting you are laying ( I'd recommend 15mm compressed fibre/cement sheets). Ant capping and DPC to all sub-floor piers and walls. Pretty easy to google a few detailed drawings but if you get stuck I can put up one from a clients job. Stewie Re: Sub floor framing to bathroom 3Dec 12, 2013 10:49 am Dear Stewie, Many thanks for the information which I shall be following religiously. Sadly, Im a relic or should I say dinosaur from the age of imperial measurements , drawing boards, and set squares. When I began my architecture degree in 1961, there was not even a framing code! And one would select sizes on "standard historic practice" which was nothing more than what carpenters had used since Captain Cooks days. (This is what we learnt at the Melbourne Uni Archi Faculty). Sadly, it was worse than this but somehow we all survived in a sort of a fashion. Thanks again Brian (aka Croxton) Re: Sub floor framing to bathroom 4Dec 12, 2013 2:35 pm Quote: the age of imperial measurements , drawing boards, and set squares. Nothing wrong with any of those. I started my carpentry apprenticeship in imperial measurements and finished it in metric. My mother was a draftie for a large architectural firm - all drawing boards, set squares and pens. Doesn't matter what method you use, if you follow the standard conventions and pay attention to detail you will do well in any profession. I've seen architects with the latest CAD program, a top flight computer etc etc and they still make mistakes or design something that is flawed. Is this you ? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ I should have asked what kind of sub-floor do you have at the moment - timber or concrete stumps, brick piers on concrete pads? Stewie Houses have been framed on floor joists since settlement, chipboard flooring is only around for 50 years or so, so why would it not be satisfactory? However exercise skill… 3 16834 Building Standards; Getting It Right! 1. optional, you can but normally just use the earth from the main switch board 2. should be enough but the distance determines voltage drop - sparky should work it… 1 28812 STEFF62 Framing should be fine, but he will only be able to nail the baseplates in, I wouldnt think you can dynabolt them after 24 hours. My question is, how is he… 1 5848 |