New to woodworking, simple joinery question

[Negativecreep0]

I want to build a simple floating long cabinet for a wall

this will support wine bottles and a touchscreen pc monitor, so its purpose is to hold some decent weight.........

is this the proper way to join the pieces?

[HaRuMaN]

Where are you going to anchor this to the wall?

I would make the bottom mirror the top, otherwise, you may get some shearing between the bottom shelf and the sides.

[Negativecreep0]

ya I was gonna make a back panel inside the 4 walls then nail the sides to it, then attatch that to wall studs

[fixedpigs]

are you just planning on using a simple butt joint for all of the ends...?

you should use a french cleat to hang it on the wall...
http://www.newwoodworker.com/frenchcleat.html
 

[Negativecreep0]

thanks man that was exactly kinda what i wanted but not as long and no need to support as much weight french pleat looks perfect for my application

[javeryh]

you should use a french cleat to hang it on the wall...
http://www.newwoodworker.com/frenchcleat.html
 

This is EXACTLY what I was going to suggest.