Mines ‘red hooks’ at about eye level, spaced about 60cm, and the bikes hung vertically.
+ Cheap and easy, just drilled some small pilot holes and screwed them straight into the brick (quicker than doing it properly with rawl plugs and an 8mm bit, but they’ve stayed in).
– the hooks bend, particularly with heavier bikes and wider rims, the fatty’s is barely holding together.
+ easy to put a ground anchor in the wall at each end and a long cable through all the bikes with a padlock at each end.
Having a sort out before Christmas and cleared out a number of bikes I’m thinking of changing it to something more like the double decker stands you get at stations as I’ve loads of wood left from building the walls. Or even a ‘mezzanine’ 4ft off the floor, bikes on top, other bulky sports kit (and the lawnmower) underneath.