It’s tragic when you enter your bike store room and find your precious bike laying on the floor. Something failed and someone’s to blame. (Probably you).
I’m not a structural engineer but I have some knowledge in the construction industry (tree falling was my career) and acquired a number of related certifications over the years. The branches of skills required for any trade can be endless. I’ll try not to wander out of my lane.
I tell my wife that I’m only a “Fastener” with a little bit of knowledge. There’s only a billion + fasteners available but how they are used is important. Nails, screws, bolts , adhesives etc (the list is huge). Every factor or possibility needs to be considered, otherwise the results can be tragic.
Consider the wall or ceiling that you’re mounting to. Wooden wall studs, sheet rock, concrete, brick, cinder blocks, plywood, OSB etc. They all require different types of fasteners or fastening methods. Choose the correct one, otherwise the result can be tragic.
I’m mostly faced with wall studs or a concrete wall. Easy right? Not always. Locating the centre of a wooden stud or ceiling joist through sheet rock is important. A stud finder is helpful …but not always accurate. Once the general location of a stud is found, a series of small holes nailed on either side of the stud can determine the correct centre. Mark that spot with a pencil. Now you can transfer hole location vertically. Check those also. Most stud walls are spaced consistently on a horizontal plane. 16” or 24” is typical …but not always. (8”, 10”, 19 5/16”, 32” can happen).just depends on the structure.
Concrete holes must be drilled accurately. A hammer drill and properly sized concrete bits are required. The type of fastener is very important. Sometimes I’ve added a special type of epoxy to help secure the metal fastener into the concrete hole.
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There’s usually instructions and a number of caveats for each type of bike hanger. The caveats may seem insignificant but they are written in to CYA, and theirs.
I won’t use some types of bike hangers for different reasons. Weight of bike, hanging method, mounting options.
So I use the Steady Rack. It pivots the bike, supports the weight nicely, keeps the rear wheel off the floor, folds up and out of the way, looks nice.