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We have bought a cubby house and we want to lift it off the ground it will be 1meter on one side and 800 on the other.
Its 1800x1800 we were thinking 4 x100 mill posts 500 in ground with concrete what size timber would you frame it with 70x35 pine treated around the out side and 4 of the frame in going side ways with yellow young on top when we place the cubby on top we will put 150x45 to join the cubby to the Fram screw the cubby bace and on the side frame.we will put a deck on the front and stairs and rails
Welcome to the Bunnings Workshop community @PeterE64. It's wonderful to have you join us, and many thanks for your question about elevating a cubby.
It sounds like your plan could quite possibly work. Lifting a cubby house is a great way to keep it dry and stable, although once you raise any structure off the ground it becomes a more serious bit of construction. Because you are looking at a one metre elevation with decking, stairs, and handrails, I cannot comment too specifically on the structural design. You really would need to speak to a builder or engineer to confirm that the posts, framing size, and footings you are proposing are capable of safely carrying the weight of the cubby house and the extra deck. It is also worth checking with the manufacturer to make sure the cubby is designed to be elevated and that there are no attachment points or load limitations you need to account for.
If you can sketch out how you plan to frame it in the air, it will help members understand your design and suggest general improvements. For spans of around one metre, you might also want to consider something closer to a 90x45 treated frame rather than 70x35, purely from a general robustness point of view. And just as a reminder, yellow tongue flooring is not meant to be exposed to weather; you will need to paint or otherwise weatherproof it to prevent deterioration.
Please let me know if you have any questions.
Mitchell
Hello @PeterE64
For long lasting quality, I suggest using 90 x 19mm Merbau SpecRite Pre-Oiled Decking - Random Lengths. You'll need to modify your timber frame in order to use the decking panels. It is an extremely durable, long-lasting, tannin-rich hardwood. It has a class 1 durability for above ground applications, exceptional stability and is approved for use in bushfire-prone areas.
If you need further assistance, please let us know.
Eric
