/ bouldering on my ceiling?
It'll be reet. They hold your weight when your above them, so they'll hold your weight when you're below them. Plus the ply will spread the load nicely. 10" x 2" joists are massive - new timber in that depth is practically unheard of.
coach bolts would be my weapon of choice or ;possibly expanding bolts although I believe these are designed for concrete not wood .you can also buy serrated nails which don't pull out to back it up ,commonly used on decking.
guess if you could get some nuts and bolts through the floor this would be the ideal fixing but probably not feesible .
need to think it through properly don't want no accidents!
I put a length of ply on my garage roof. I think I put some support baritones behind the ply to stop it flexing. top tip - make sure you check that all your t-nuts are fine before you screw it in place, it will be a pain to change them over if any of them are threaded once it's all screwed in.
Elsewhere on the site
The release of Peter Jackson's new film The Hobbit: The Battle of the Five Armies on 12th December may not appear to link to... Read more
F ounded in 1993, Mountain Hardwear are a pretty young mountaineering clothing and equipment manufacturer but are also one of... Read more
Rock shoes stink – let’s face it. Boot Bananas are the perfect way to fight the funk and keep them fresh. They help... Read more
On Saturday 13th December Greg Boswell and Guy Robertson kicked off their Scottish winter season early by making the... Read more
Perhaps the perfect Xmas gift for the climber in your life... Wild Country's Crack School has two of the worlds best crack... Read more