These floating boxes attach right to the wall. It's easy to adjust them to any size you need. You can tuck a basket underneath, or better yet leave it wide open for an uncluttered look. Get the full plans at More Like Home - http://www.morelikehome.net/2015/03/nightstands-day-3-floating-boxes.ht…
And check out the rest of my DIY Nightstand series: http://www.morelikehome.net/2015/03/diy-nightstand-series.html
1 - 1x12 @ 10'
1 - 1x4 @ 4'
1 1/4" screws
2 1/2" screws
Kreg jig with 1 1/4" pocket screws (optional)
(A) 4 - 1x12 @ 12 1/2" (sides)
(B) 2 - 1x12 @ 10 1/2" (small box top & bottom)
(C) 2 - 1x12 @ 22 1/2" (large box top & bottom)
(D) 1 - 1x4 @ 10 1/2" (small box support)
(E) 1 - 1x4 @ 22 1/2" (large box support)
Please read through the entire plan and all comments before beginning this project. It is also advisable to review the Getting Started Section. Take all necessary precautions to build safely and smartly. Work on a clean level surface, free of imperfections or debris. Always use straight boards. Check for square after each step. Always predrill holes before attaching with screws. Use glue with finish nails for a stronger hold. Wipe excess glue off bare wood for stained projects, as dried glue will not take stain. Be safe, have fun, and ask for help if you need it. Good luck!
Start by using two sides (A) to connect the small top & bottom (B). Keep all the edges flush and use glue. You can use a Kreg Jig or drill through the sides into the top & bottom boards. Do the same to build the large box, connecting two sides with the large top & bottom (C). These are super easy to customize! You can make any number and size of boxes you want. Cut the boards longer or shorter to try different sizes of boxes.
To mount the boxes to the wall (paint or stain before mounting) attach the support boards (D & E) to the boxes. The supports should sit under the top of the box and be flush with the back. Drill through the top & sides of the boxes to attach them to the supports (or use a Kreg Jig). Then attach the boxes to the wall by drilling through the support boards with 2 1/2" or longer screws (depending on your drywall thickness). Make sure they are level, and that you hit a stud! You're guaranteed at least one stud with the longer box, if the small box doesn't hit one you'll need to anchor it with proper hardware for your wall type and how much weight you expect it to hold.
If you want your supports to be more "invisible" try painting them the same color as your walls so they blend in.
It is always recommended to apply a test coat on a hidden area or scrap piece to ensure color evenness and adhesion. Use primer or wood conditioner as needed.