Window box

When installed under a window, it is usually supported by brackets on the wall below.

Some materials, such as PVC or fibreglass, use a cleat mounting system from behind to attach it to the building, or it may be bolted directly to the building without the use of support brackets.

[1] Wood, brick, terracotta, metal, fibre glass, vinyl, and cellular PVC may all be used in window box construction.

A typical wooden window box lasts 3–5 years before showing deterioration, though with painting and maintenance can last 10–15 years.

Larger boxes, 10–12 inches in height, can be used to plant items that need more root space, and to allow flowers and plants to be grown in multiple rows.