All of our window boxes are designed to be installed with the use of lag bolts and washers that pass through the back of the box. This is the safest and strongest method to secure a window box without having to worry about shifting, warping, rusting, breaking, and bending. This tried and true method is the only way we recommend to install a window box. Depending on the number of window boxes you will need, you may need to purchase multiple hardware kits.

24" - 39" Window Box (1 Mini Kit):
2- 3/8" x 3 1/2" lag bolts
2- 1 1/2"washers.

40" - 95" Window Box (2 Mini Kits):
4- 3/8" x 3 1/2" lag bolts
4- 1 1/2"washers.

96" - 119" Window Box (3 Mini Kits):
6- 3/8" x 3 1/2" lag bolts
6- 1 1/2"washers.

120" - 144" Window Box (4 Mini Kits):
8- 3/8" x 3 1/2" lag bolts
8- 1 1/2"washers.

Recommended use for siding, wood, stucco, composite wood siding, and cedar shakes.

For brick and rock installation separate lead anchors recommended - purchase one of our Brick Mini Kits instead.