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building a woodie

hangdoggy

8-Jan-2005
2:47:39 AM

looking for someone with engineering experience to give me a bit of feedback..
i want to build a free standing woodie in my back yard...
drawn up some plans 2.4x2.4 square base and 4-5m high with the back wall on a 15 degree overhang
i'm thinking steel angle (like the lintils used over windows) would be the go to support each corner.
just looking for an opinion of what size angle to use and how deep i should concrete it into the ground
any help would be appreciated

jens

8-Jan-2005
12:53:26 PM

Hi, I'm not an engineer, but I would lean toward 2' square tubing as to angle. Tubing has almost twice the loading strength to angle, wich will twist, buckle and then kink. Rectangular tubing is even better.
As for the concreting, I would use galvernised steel with maybe even a cold-gal paint over the top, as you will not see the corrosion (rust) in the slab. The slab would have to be substancial as the overhang will excentuate the forces with leverage, so the slab has to reach as far out as the overhang and will require steel mesh re-inforcing. This will also be an expense. Better to hang it off a wall or something, with chains. Just a thought.

Hope this makes sense, good luck.

Jens

Hatman

10-Jan-2005
7:17:55 AM

I have a free standing in my back yard (see woodie post in gear lust)
It works verry well and is not concreted in it just sits there with supports. It is made entirely from wood. The suports are laminate pine (very strong unless wet) frame work is mainly pine studs. To keep it water proof I have put some 2nd hand laserlite on top and will on the back as well eventually. I used some 10mm pebble as the base wich creates a clean and softer spot for the futon materesses wich form my crash mats.

Just used a bit of high school carpentry and many beers!

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