If you want to hang floating shelf brackets use a stud finder to find the studs in the wall and drill into the stud where you want to hang your shelf.
How to hang floating shelves on a stud wall.
Using a power drill and 9 32 drill bit drill hole into wall marks.
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Next secure the bracket in the drilled hole and use a level to figure out where to drill a second hole for the second bracket.
Then check the shelf to make sure it s sturdy and ready to bear the weight of whatever you put on top of it.
With some setups the shelf rests on top of the brackets.
Measure and mark the spaces on the wall on both ends of where you want the shelf to go.
Using a power drill or screw driver for phillips head screw drive provided screws into studs or anchors securing backplate to wall.
Position the shelf on the wall.
Diy expert craig phillips shows how to hang floating shelves on a stud wall in this step by step video.