John Robertson wrote, on Fri, 17 Oct 2014 23:46:50 -0700:
I asked the owner about the weight of the deck, where this came back:
Hello Danny:
Thanks for your help last week. I couldn't have done it without you.h
You seemed skeptical about my estimate of the first bridge section. Given a 2x10 weighs 3.37 lbs per foot. Given a 2x6 weighs 2.00 lbs per foot.
3x16x3.37 = 162 lbs for the three long boards 2x10x3.37 = 68 lbs for the two end boards2x6 2.00 lbs/ft
10x2x32 = 640 lbs for the decking870 lbs per 16 foot section.
So if there are 5 sections (80 feet), or 6 sections (96 feet) we have
4,350 lbs or 5,220 lbs for the deck.The cables can support 28,000 lbs.
That gives us 22,780 lbs for the house and occupants, assuming the only support is the cable.
If we allow that some of the weight is supported by the posts and the trees, we have even more leeway.
If the house is 24 feet long and ten feet wide, it will weigh about 8,000 pounds.
Add 4,000 pounds for furnishings and appliances. That gives us 10,780 pounds of leeway for occupants.
But I plan to have most of the house weight supported by the redwoods, not by the cable.