extra support for floating shelves

Kiera Grace 23"x4" Wall Shelf Dark Brown: MDF Composite, Rustic Edge Floating, Bedroom & Living Room Decor

Floating Nightstand 12"H, Wall Mounted with Single Drawer and 2-Tier Shelf, White

LOVSON 60''Decorative Shelf, Rustic-Style Mantel Shelf with Hidden Brackets, Wooden Floating Mantel, Suitable for Living Rooms and Hallways, Natural

Aghana Digitals 4-Piece White Matte MDF Floating Wall Shelves, 47.2in Long, Modern Wall-Mounted

Kate & Laurel All Things Decor 18"x10" Deguara Floating Shelf Black

Aghana Digitals Handmade Solid Oak Floating Wall Shelf, Farmhouse Style, 31.5"x31.5"x0.8", 84.9lb

Sussexhome Metal Bridge Shelf for Desk or Wall, Unique Home Office Decor

Aghana Digitals Handcrafted Rustic Solid Oak Floating Wall Shelf, Light Brown, 39.4x19.7x0.8in,

Floating Wall Shelves 2 pcs Gray 15.7"x9.1"x1.5" MDF

23.6" Black Floating Shelf ¨C invisible-bracket wood wall mount, perfect bathroom/bedroom/kitchen d¨¦cor or book/plant display, easy install.

Illia Floating Wall Decor Wall Mounted Rustic Decorative Hanging Shelf for Books, Set of 2,Walnut

Kate & Laurel All Things Decor 18"x6"x30" Ramos Wood/Metal Accent Shelf Black: Modern Floating Storage, 3-Tier Design

Kate and Laurel Ubbard Rectangle MDF Floating Shelf, 30x4, Walnut Brown

Modern Ember Boone Wood Fireplace Mantel Shelf with Tall Boxed Design

Kate and Laurel Samuels Rectangle Wood Floating Shelf, 24x8x8, Rustic Brown

Greer Floating Shelf in Melamine x2, Grey

SEVOBAL Decorative Wall Shelf 48'' Floating Fireplace Mantel Solid Fir Wood Shelf for Living Room and Home Decor, Brown, 48"*9"*6"

InPlace 11.8" Floating Corner Shelf Wall Mounted Espresso - Modern Decor, Wood Composite, Includes Mounting Hardware

COWLOWN Embossed Fireplace Mantel & Floating Shelf, Wall-Mounted Rustic Wood Decor

FONTOI 2PCS Wide Storage Shelf Wall Mounted, Floating Shelf for Living Room Bathroom, Wall Decor, Gray, 31.5"*1.5"*9.8"

Kate and Laurel Hatley Floating Shelf Set, Black, 2pc 24 inch

InPlace 72" Floating Shelf Wall Mounted Rustic Wood - MDF, Home Storage, 8" Depth

11.81" Maple Floating Shelf ¨C invisible-bracket wood wall mount, perfect bathroom/bedroom/kitchen d¨¦cor or book/plant display, easy install.

21" x 32" Freade Tiered Decorative Wall Shelf White/Gold - Kate & Laurel All Things Decor: Modern Metal Floating Shelf with Open Storage