With the deck being quite narrow have you considered taking the timber to the edge of the deck and not using a coping stone. This will give you a sleeker more clean lined look. With regard 90 verses 140 decking. We use mainly 140mm now, but with the deck only being 2 metres wide this may look out of place. A lot will depend on your surroundings. If the deck hasn't been started yet I would also suggest that you run your decking the short length, this will draw your eye along the lines and give an illusion of the deck being wider than it is and looking up it not as long. With regard cupping it very much depends on the timber selected and you really need to screw down rather than nail. For almost all of our decking I specify and recommend Accoya for its stability. I am sure that it will be available in Australia.

DB.....A LOT of ideas and advice flying around here.......skimming through I see you are endeavouring to establish a basic concept for a designer/architect to consolidate for you, which is great.......whilst you may think this is a logical approach to achieve the best outcome, you are arguably just throwing around random ideas rather than properly resolving/focusing on the critical aspects ........my advice is do this: firstly clearly ascertain two things on paper, not in plan or building format but in writing...that is 1. List all your requirements/needs/goals and 2. Nominate a budget. Next, identify/research a logical local designer/architect option and approach them with this information....A designer's job is to come up with an appropriate concept/solution that best balances your requirements, aligned with a budget and of course make it viable within context/site. Sure, you want a cost effective/modest result, that's fine, and that will influence the solution, but as a general comment it feels like there is massive potential being missed considering the site..it dens;t necessarily have to be that big or fancy, but you have to put the EXPERIENCE of the home front and centre of the process, and not just think of it as a kitchen or whatever laid out this way or that ....This is about an amazing site and the living experience of that and the design should be based on this and bring together your specific requirements elegantly balanced in context......The issue I have scrolling through all this is that you have all these almost disconnected ideas of building form, but you have this incredible site....... the process of resolving the spaces ideally needs to develop from cues of the immediate environment/site in order to make the most of it since you are pursuing a customised solution.....agree with MB, every project has a budget and ultimately from experience this is in general the ultimate/overriding constraint. This project could be anything upwards from $500K and it will come down to the working out how far you want to take it, and what your priorities are over various levels.......this one has seriously significant potential -make sure you make the most of it as you're truly fortunately to have this opportunity to build a home for you and your family to enjoy there.......best of luck :) PD

haha!!!! Siri - you can have your Eiffel tower angel... give me the beach any day :) Nic - perhaps some driftwood, shells and a jar of sand might help bring the beach to you - just don't knock your sand flying or you'll literally be able to crank up your fireplace and lie down on your sand to sunbake lol.

Unexpectedly to me, due to it's location on the crest of the Great Dividing Range at an elevation of around 700m above sea level, Toowoomba has a climate more similar to Sydney than Brisbane. With average summer highs of only 28°C, & average winter highs of 17°C (lows of 7°C & cold wind, as has been mentioned). It's located in Climate Zone 2: Warm Temperature, the same climate zone as Sydney, not Brisbane. Though this climate zone is very varied, so care must be taken to cater for local conditions. As has been advised a few times, have a good read of the Your Home site. Read this section, Designing for Climate, for zone 5: warm temperate. http://www.yourhome.gov.au/passive-design/design-climate Along with having cooler temperatures than Brisbane, the fact that Toowoomba is inland means it has greater variation between daytime highs & nighttime lows (diurnal temperature range). This means that unlike Queensland coastal climates, some thermal mass in the home will be appropriate, so a lightweight structure isn't needed. Although a lightweight structure, on a ground-coupled slab (with polished concrete or tiles in North facing living areas) would be a good idea. As the temperature is so much cooler than tropical Queensland climates I'd advise against going too overboard with a pavilion style house. As I think it would be too cold in winter. Maybe something like two off-set rectangles, joined in the centre. Kinda like dreamer's inspirational picture, without the middle section, the two rectangular sections joined. Or just go for a more traditional rectangular house. In any case, like just about all Australian climates, you should try to build a house that is generally rectangular, the long sides facing north & south. This will give an opportunity for northern sunshine to enter home in winter, while the shorter eastern & western sides will limit the effect of hot summer western afternoon sunshine. Though I guess this house shape won't look great from the western road, as it will look very narrow from here. You could fatten it's street frontage a little bit, by having the garage to the south of the rectangular house. With such a large block you'll be able to build something that works for you. But as OKLouise said, don't just pick a plan for an average narrow block. The plan you picked is not really suitable for your block. I'd also recommend you do a lot of research yourself. As has been shown with the plan you've received, you can't rely on the builder to design a plan that will work best for you, that is appropriate for your location. So read up on the Your Home website. It's an invaluable resource when it comes to building a comfortable, energy efficient home.