slope sketches

BodyIslandSlopeSketchAREA

Image not to scale!

I made some sketches of the slope for the mountain to get a better idea of pitch, area and how much wood it will take to make it. I have yet to design the specific measurements of the 4×8 platforms that will make up the two slopes, but if my calculations are correct I will need 24 4×8 platforms, some of which will be cut at angles to accommodate the diagonal center ridge where the two sloped planes meet. The pitch is 24˚ when walking up the slope, but it’s something like 19˚ when walking up the ridge. Nice.

24˚ is rather steep, so I’m planning to make little flat pockets on both slopes, which will necessitate a bit more planning, and a bit more plywood to make platforms. The slopes will be mounted on a lattice of 2×4 pillars and cross-bracing. If one 2x4x8 pillar of doug fir can hold my weight (165lbs), then it shouldn’t be too hard to calculate how many pillars will be needed. I’m planning the assembly system and process. I’m hoping to borrow 4×8 platforms from a generous theater.

The full area of the sloped plane is 758.2 sq/ft.
The area of the footprint is 736.125 sq/ft (adding the area of the interior space, L1).

That’s a lot of wood… and a lot of bolts.

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