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Hereof, how deep should a floating shelf be?
For example, if you are floatingabookshelf, typically your shelf won't need tobedeeper than 10" since most books are less than9"deep. If you are floating kitchen shelves,12"usually works since most cabinets and the plates, cups, andbowlsthey house, are 12" or less deep.
Simply so, how thick should Shelves be?
Thickness and Sizes Use 3/4-inch thick materials forshelvesand bookcase structure. If you're using hardwoodsolids, it's OK toboost the thickness to 1 1/4 inch foralmost unlimitedsupport. This type of shelf looks more likea mantel and isexpensive, but adds the opulent lookofcraftsmanship.
Find a Stud A nail in just drywall can't holdmorethan a few pounds of weight, but a thin nail in awoodstud can typically hold up to 20 pounds andseveralcoarse threaded wood screws in wood studs cantypicallyhold up to 100 pounds or more.