CityCyclingEdinburgh was launched on the 27th of October 2009 as "an experiment".
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CCE is 15years old!
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not resolvedBuilding storage racks under the garage ceiling to reclaim space for bikes - thinking of bolting together metal sections in a "U" shape under each joist.
I have no idea what profile, thickness etc. would be strong enough?
It's to store timber - say 100kg of it and it needs to be 600mm wide so I can get half sheets up there.
Any advice? I don't want to go massively overboard, but don't want to drop that much weight on myself while fettling a puncture either.
Dave. I built something similar for my garage. I am able to store 4 X 8 foot sheets timber under the roof trusses but above the 'opened' garage door. I will try to get you some photo's later.
Just a more reinforced version of the one in the pic will do (without the mesh). 100kg isn't that much really when spread over 4 or 6 down-structs.
Get the appropriate 90deg brackets from local builders merchant, some lengths of 50x50 and a box of 1" 3/4 x 10 screws. If you able to use a couple of joint hangers, so much the better - although not essential.
Don't screw any wood directly together, use the brackets and remember that the 'front' of the rack will briefly take significantly more of the load when you are storing the wood ie when you are heaving it up there. So an extra screw or two.
I await a Civil or Mechanical Engr to come along and talk about bending moments and sheer forces......
Thanks, hadn't thought about nail plates & similar. I was more worried that just screwing the wood together would be vulnerable to shearing off or tearing out (since end pieces of wood are taking the strain parallel to the grain)
I await a Civil or Mechanical Engr to come along and talk about bending moments and sheer forces...
"The sheer force of heavy bits of wood could shear the bracket."
Just a little joke, there.
Tulyar and I are both mechanical engineers in need of an opportunity to do more sums.
I have something similar in my garage. It's made with 44mm timber. All the joints are reinforced with metal brackets and the resulting u brackets are strong enough for chin ups.
I'm away just now but will try and get some pics once home.
I built some benches and shelving using Supadex, an old school Dexion clone. Has the advantage of allowing endless tinkering until you get what you want. Should be OK with the loads you're talking about, though this opinion is based on a mix of optimism and the knowledge that I won't be under it.
Dave. For my under truss storage I used lengths of 75mm angle iron supported with 8mm threaded bar. The bar is held in place by a wedge and a metal plate above the node point. The node point is the strongest point, as this is where the timbers joint to form the truss. With this method I am able to have 1800 mm between the threaded bar. I have 5 horizontal lengths of angle iron space at 600 mm so easily able to store 8 x 4 sheets of timber.
First attempt at adding photos to CCE.
Thanks! Very helpful.
(Looks like you could probably hoist a car up on those, if the roof would take it...)
@Dave. My storage solution is a bit over engineered for some. I was just working with materials I had been gifted.
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