Hi
I am looking for information on building a children's climbing frame. What I am after is a wooden structure that spans the width of our garden and is raised off the ground by approx. 7 ft.
What I am hoping to achieve is to concrete into the ground 4 wooden posts, two each side of the garden. The posts will be about 6ft apart at each end and the total span across the garden is 17ft.
The structure will be used for a 'tree house' type play den raised off the ground and will also have possible a slide, and one or two swings.
The information I need is:
- WxD dimensions of the 17ft cross pieces to support up to approx 20 stone (300lbs)
- Best type of joint for the upright support posts to cross posts
- Would I need 45 degree supports from uprights to cross post.
- Best type of wood to use (permanent structure)
- Best type of wood treatment.
- Best way to sink posts into ground (metal spikes, concrete) and depth of hole.
Any advice or links to information will be much appreciated.