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by tom66
Mon Nov 12, 2018 9:09 pm
Forum: Concreting, Drives, Paths and Patios Forum
Topic: Help I Need to Build a 20' Bridge (PS not a real bridge)
Replies: 2
Views: 2289

weight?

what about the weight of all the boards? + people? they are rated at 200-250lb, but i think that is mostly about the strength of each step, do you think it'd hold that much weight used as a joist(s)?
by tom66
Mon Nov 12, 2018 8:19 pm
Forum: Concreting, Drives, Paths and Patios Forum
Topic: Help I Need to Build a 20' Bridge (PS not a real bridge)
Replies: 2
Views: 2289

new idea

a friend gave the idea of using two 20' aluminum ladder rungs and screwing the boards right on it , what do you guys think? the one in the picture is the one I use to go on my roof, and the pieces are 18' long, I looked on Craiglist and I can find a used 40' ladder for $150 which is close to what it...
by tom66
Sun Nov 11, 2018 3:56 pm
Forum: Concreting, Drives, Paths and Patios Forum
Topic: Help I Need to Build a 20' Bridge (PS not a real bridge)
Replies: 2
Views: 2289

Help I Need to Build a 20' Bridge (PS not a real bridge)

I need to build a footbridge (or boardwalk, as it has no railings) to span 18-20'. The 2x4 in the picture are 20' long, the shorter one (the one in the middle) is 16'. If I had a good way to build footings in between the two skimmers (square grey spots) I'd have only 14' distance to cover, but I don...
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