How to Add Support to a Sagging Floating Shelf

Written by bailey shoemaker richards
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Floating shelves are a simple but practical addition to any wall. They are more versatile than traditional bookshelves and can easily hold display items as well as practical ones. However, over time a floating shelf may begin to sag. There are numerous causes for a sagging shelf, and fortunately, all of them are easy fixes. Adding support to a sagging shelf can prevent it from falling, breaking or being permanently damaged.

Skill level:
Moderately Easy


  1. 1

    Take everything off the floating shelf to examine the shelf more closely.

  2. 2

    Look at the brackets underneath the shelf first; brackets that have been spaced too close to the edges of a shelf can cause it to sag.

  3. 3

    Move the brackets 1 to 2 inches in from the edge of the shelf. Remove them from the wall with a screwdriver and replace the screws in the brackets' new position.

  4. 4

    Add a third bracket to the centre of the shelf to hold up the sagging middle. Attach the shelf with screws. Make sure it is even with the other brackets.

  5. 5

    Replace items on the sagging shelf; put the heaviest items at the ends of the shelf and lighter items in the middle.

Tips and warnings

  • Before you add support to a sagging shelf, check to make sure it has not cracked or split; if it has, the shelf needs to be replaced, not supported.

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