I'm putting up a wall mounted holder for my road bike and the istructions say that the bolts must go into brick, not mortar. There are three bolts and they are quite randomly placed (i.e not in a row).
I would usually use trial and error but in this instance because of the arrangement of bolts I could end up with lots of holes in my wall.
Is there a way to find where brick/mortar is behind plaster before drilling the holes for the bolts?
Best Answer
If you are talking about supporting a bicycle then 100 year old mortar will certainly hold your bike especially with three anchors.
I would just put the anchors where I wanted them and not worry about hitting brick. However, with a running bond pattern, and measuring the brick dimensions from the outside, whether your first anchor hits brick or not you should be able to measure from there to hit brick on the two subsequent anchors.
Good luck!