I've seen many do the 12圆 route, but I wasnt sure, so for now i have it figured as roughly 12-13 12x8s? Here is a shot of my ground so far, i wasnt sure if i should just get a bobcat and push it forward till level, or if tossing the extra dirt that is "high" on the upper part, to the lower part would suffice or cause a settling issue later?Įither way, once down to level, i figure ill either just leave it as just dirt under, or put down plastic to block weeds and cover with a thin layer of gravel. I have to make things level, so that i dont need extra height on a concrete pier, to keep the whole structure say 12" off the ground and not need a railing. On top of the deck will be the nexdome with 2 bay (astronomy plastic dome weighs around 300lbs i think). (with everything i have below and $69 to ship, its around $480 as of now, so higher than planned) I know that a build like this should only cost $300 to $400. I thought home depot had an online one, but only found an offline tool, lowes online did work, but in both cases they generated ridiculous materials lists and prices close to $10k. I've tried using some online deck building tools to generate the materials needed for what should really be a simple build for this, but i'm getting weird results and had some questions. plywood is often used for observatory builds because its a smoother surface to seal off, i assumed it was ok. Resummarizing here because it wont let me edit my main thread, with photos. The one designer tool shows using these right angle brackets too, unsure if needed?įor the hangers, i'm guessing ill have to tilt the whole thing on its side as i add the plywood flooring to do the hangers, because it will only be about 12 inches off the ground.Īlso, i've started leveling the ground by hand (though i may wait on a bobcat), the higher area towards the back needs scooped out, i thought about just tossing that dirt to the lower area to make it even and level and packing it, but i'm concerned after settling the deck may shift on those concrete blocks later? The load on top is around 300lbs of material plus 1-2 people (observatory dome on the deck, cement floating pier in the middle not touching the deck). (if we ever move i might either try to disassemble it or just take it as is on a truck) I'm not sure on the deck screws ( #8 2"?) nickel, zinc etc. Is a 12圆 enough for this small of a deck even, or should i go with 12x8's? The other things i'm not sure on are the joist hangers count and location (i think mainly the outside perimeter and then angle brackets of some kind at each other place. I assumed 12-13 2圆x12 pressure treated boards, going for a 3/4 plywood deck so roughly 3-4? at $39 a piece ( yellow pine sheathing?), there was cheaper sheathing, unsure. I was going for block footers (6-9 of them), 16 on center for each joist. Ill have a 2x2 center pier area boxed off. Can anyone comment on the materials needed (primarily at Lowes) for a build like this. I've tried using sites like the home depot offline generator and its saying $10,000 for a simple flat deck. I'm trying to get a list of materials for a very basic 12x12 deck build.
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