extra support for floating shelves

InPlace 36" Picture Ledge Wall Shelf Black: Modern Floating Display, Wood Composite, Includes Mounting Hardware

24" x 6" Glass Floating Shelf with Brackets Clear/Silver - Danya B.: Wall Mounted, Tempered, Bathroom Compatible

Altai Floating Wall Decor Wall Mounted Rustic Decorative Hanging Metal Bracket Triple Shelfs for Books, White Blue

35.4" x 4.5" Picture Ledge Wall Shelf White - InPlace

Wall Shelf Black Metal - Brightroom™: 2-Tier Storage, Open Cubes, No-Tool Assembly, 14.7" H x 18.1" W

3 Tier Floating Ladder Accent Shelf - Danya B

FONTOI Floating Storage Shelves Set of 3, Wall Mounted Shelf with Brackets for Living Room Bathroom, Wall Decor, Natural Wood, 4.2"*5.1"*23.7"

72" Floating Shelf Wall Mounted Hidden Brackets Driftwood - Inplace

31" Decorative Shelf Wall Mounted with Front Edge Unfinished Wood - InPlace: Pine Material, Plate Display, DIY Customizable

38.5" x 31.5" Two-Tier Wire Bracket Shelves - Danya B.

Kate & Laurel All Things Decor 36"x8" Havlock Wood Floating Shelf Rustic Brown

25" x 9" Entryway Floating Utility Wall Shelf with Hooks - Danya B.

Decorative Wall Shelf - Kate & Laurel All Things Decor

29" x 16" 2-Tier Ledge Wall Shelf Organizer with Five Hanging Hooks - Danya B.

Rosebud Corner Floating Shelf: Modern Full-Wall 4-Shelf Unit

37" x 31.5" Rectangular Shelf Unit - Danya B.

For Sale Sign - up&up™: Plastic, 12"x16", Red, Utility Shelf Parts, No Assembly Required

Attop Fire Escape Wall Shelf - New York Decorative Ladder Shelf, Wall Art Floating Shelf Black Metal Shelves

34.5" x 23.6" Rhodes 4 Tier Modern Floating Windowsill Wall Shelf Unit - Danya B.

48" Floating Shelf Wall Mounted: Modern Decor, Wood Composite, Hidden Brackets - InPlace

18" x 12" x 6.5" Kitt Floating Shelf Side Table - Kate & Laurel All Things Decor

Floating Shelf Wall Mounted Hidden Brackets Rustic Wood - InPlace

Fold Down Loft Tray Nightstand White - Room Essentials™: Sturdy Steel, Multipurpose, No Assembly Required

InPlace 48" Floating Shelf Wall Mounted Hidden Brackets Driftwood Stylish Storage & Picture Ledge