1x4s - approximately twice as much in length as the desired length of shelving OR for taller crown use a 1x5 or 1x6 for the back (1x4 in desired shelf length, 1x5 or 1x6 in desired shelf length)
Crown moulding no more than 2 3/4" installed dimension width (you will need approximately the length of your shelf + 12" to accommodate those tricky corners)
2" fasteners or 1 1/4" PH screws
3/4" finish nails and wood glue
1 - 1x4 in desired shelf length
1 - 1x4 OR 1x5 OR 1x6 (depending on crown height) 5 1/2" LESS than desired shelf length
1 - Crown, shortest point to shortest point edge length of BACK, both ends double beveled outward
2 - Crown, cut in MIRROR, with one end double beveled outward - cut to fit
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!
First determine the desired length of your crown moulding ledge. This is the length of your top board.
Then subtract 5 1/2" and cut a 1x4 (or for taller crown, a 1x5 or 1x6) for the back to this length.
Attach the two boards together, with a 2 3/4" overhang on each end, back is flush.
Start with the center crown piece, cut along bottom edge, shortest point to shortest point the length of your back piece. The ends are mitered outward to wrap the shelf.
Build a crown moulding ledge shelf! Free DIY plans from Ana-White.com
And then cut your two ends. What I do is take my remaining scraps and cut the right angle to match and end. Match the corners up, and mark length. Cut and attach. Then repeat in MIRROR on the opposite side.
If you used pocket holes, you can use them as "keyholes" for hanging. You can also buy hardware to assist with hanging.