Attach the plywood top to the frame.
Hanging selves on an uneven wall.
Push a pencil through the holes in the support.
Place the shelf and bracket assembly against the wall in the chosen location lay a carpenters level on top and adjust the shelf so it is level.
It doesn t have to be paper.
Shelves with the right kind of mounting holes can be evened out by stuffing a little paper into the bottom of the hole so that the nail or screw doesn t slide all the way in.
Measure out the rough height at which you plan to install each shelf.
Buy a different type of shelf that s less dependent on wall being flat.
For example using an ordinary standard and bracket shelving system would push the shelf itself off the wall by about 1 2.
If you want the line to stay invisible place the top of the shelf on the line.
Use the drawn line to help you ensure the shelf stays even.
Position the shelf on the wall.
Use a hammer drill with a 1 4 inch mason bit or an electric drill with the same bit to.
Set your shelf against the wall where you want to put it holding it as level as you can.
Remember that the top of the shelf will be above your marks.
Or just using a bracket that would allow you to move the shelf away from the wall slightly.
Place a pencil mark where each shelf will start and use a 4 foot.
Hang the shelf on the mounting brackets.
Toggle bolts work better than screws with.
Lay a sharpened pencil against the wall perpendicular to the shelf with the point set against the shelf itself.
Pick up the shelf with the fasteners attached and line it up on the wall.
You can use the nail gun to hold them in place while they dry.
With some setups the shelf rests on top of the brackets.
Hold the level against the wall at the height you want the shelf.
You can have someone hold the shelf for you while you use a level to double check the evenness if desired.
You can use more or less to get the right angle just make sure not to use too much or it won t be able to hold the shelf.
Use liquid nails to attach the front and optional sides.
Adjust the level until the bubble is centered and mark the keyhole locations on the wall.
At this point you have.
Place the shelf frame with the bottom but no top where you want it on the wall and screw it into every stud that it touches.
How to install shelves on a brick or concrete wall.
How to cut shelves for uneven walls.