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48in. Black Supreme Fiberglass Window Box

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48" L x 8 1/2" W x 9" H -Includes (3) Brackets

Grow your curb appeal with the ease of Supreme Fiberglass Window Boxes. Constructed using an extruded manufacturing technique, each outdoor garden container features inherent resistance to rot, mold, hot and cold. Each lightweight 48"L window planter also comes with three stainless steel mounting brackets, bolts and a pre-fit drainage mat to encourage healthy roots. By channeling excess water over the convex bottom of the container to escape through holes in the end-cap, container garden arrangements enjoy optimal drainage and airflow for healthy plants free of root rot.

Fiberglass planter boxes are easy to display because of their maintenance-free design. And although not required, containers are easy to rinse - water just rolls off the smooth black finish. Other colors and sizes are available online, or call toll free to ask about custom fiberglass window boxes measuring up to 14" long.

48" L x 8 1/2" W x 9" H -Includes (2) Brackets 

Fiberglass Window Box Dark Green Dimensions Hooks and Lattice 

If you'd like a more decorative look to your windows, consider these wrought iron window box brackets below.  Simply locate our different styles on the right side of this page and click to review or add to your shopping cart.Using these shelf-like brackets allows your box to be mounted further from the wall frequently allowing clearance from window trims and other trim boards.
Wroght Iron Window and Flower Box Mounting Hardware
  • French Shelf Bracket Pair- creates a 8 1/4" Shelf

  • Scroll Shelf Bracket Pair - creates a 8 1/4" Shelf

  • French Shelf Bracket- creates a 11 1/4" Shelf
Finish: Powder Coated in Textured Black
Our line of Supreme Fiberglass Window Boxes come with wall brackets to hang your window box beneath a window on your home. Bolts are included, but if you are mounting the box to a stone/brick home, you will need to purchase lag shields separately. Diagrams are shown below so that you can see how the boxes are mounted to a wall and to a railing. To explore additional mounting hardware, including brackets for hanging the box from a railing, visit our Optional Brackets (For Fiberglass Supreme Boxes Only) page.

Fiberglass Window Box Installation from Hooks and Lattice