Best Steel Window Boxes of 2026

The RUDDINGS WOOD Window Boxes are a stylish solution for your outdoor planting needs. Each box measures 91cm wide, providing ample space for your flowers and plants. The heavy gauge steel construction with black powder coating ensures durability against rust and harsh weather, making them perfect for any garden setting. Included coco liners, made from natural coconut fibres, help retain moisture, so you can enjoy thriving plants with less frequent watering. Additionally, the two slots for easy fitting make installation a breeze, allowing you to beautify your space effortlessly.

The RUDDINGS WOOD Wall Planter is a large 120cm (48") wide trough made from durable steel with a PVC coating, ensuring it can withstand various weather conditions. It comes with a quality coco liner, allowing you to easily plant and maintain your favourite flowers or herbs. The ornate Fleur-de-lys design adds an elegant touch to your garden or window. With its generous size, you can create a stunning display that enhances your outdoor space and brings joy to your gardening experience.

The RUDDINGS WOOD Window Box is a 48" (121cm) large garden planter that features a quality coco liner. This liner, made from natural coconut fibres, helps retain moisture after watering, ensuring your plants thrive. Constructed from heavy gauge flat steel with a black powder coating, it resists rusting and protects against various weather conditions. Additionally, it includes two fixing slots on the back for easy installation, allowing you to effortlessly enhance your outdoor space.

The ZOENHOU Window Box Planter is constructed from high-quality PP material, ensuring durability and resistance to cracking, making it suitable for both indoor and outdoor use. Its lightweight design allows you to easily reposition it as needed. Each planter features predrilled holes for drainage, ensuring your plants receive proper airflow and moisture, promoting healthy growth. Additionally, the included trays help maintain water levels during warm, dry spells, providing convenience for plant care.

The CASARIA Flower Boxes are a charming addition to your garden, balcony, or indoors, helping to brighten your space and lift your mood. Made from robust, weatherproof plastic with a galvanised steel frame, these planters offer long-lasting stability and protection for your plants. They are easy to install with adjustable mounting brackets that fit various railing widths, providing flexibility for your setup. Additionally, the solid bottom allows you to use them as regular pots or add drainage holes for direct planting, giving you versatile options for your gardening needs.

The RHAIQBVC Window Box Brackets are made from premium thick iron, ensuring they are sturdy and can support up to 40 pounds. Their adjustable base design allows you to customise the length of the brackets to fit various pot sizes, accommodating depths from 7.09 inches to 9.06 inches. Installation is straightforward; simply adjust the base and tighten the wing nut for a secure fit. These brackets are rustproof, making them suitable for both indoor and outdoor use, allowing you to enhance any space with beautiful plants and flowers.

The RUDDINGS WOOD Window Boxes are a practical addition to your outdoor space, featuring a set of two 30" (76cm) garden window boxes. Made from heavy gauge flat steel with a black powder coating, these boxes resist rust and weather damage, ensuring long-lasting use. Each box comes with quality coco liners made from natural coconut fibres, which help retain moisture, making it easier for you to keep your plants healthy. The design includes two slots for easy fitting, allowing for straightforward installation.

The RUDDINGS WOOD Window Boxes are a practical addition to your garden. This set includes two 24-inch metal window boxes, designed with durable heavy gauge steel and coated to prevent rusting, ensuring long-lasting use. The included quality coco liners, made from natural coconut fibres, help retain moisture, making it easier for you to care for your plants. With two slots for easy fitting, these window boxes provide a convenient way to enhance your outdoor space. Their dimensions of 61cm wide, 16.5cm height, and 16cm depth offer ample room for your favourite flowers.

The Achla Flower Box Kit is an excellent choice for enhancing your home's curb appeal. With two sturdy wall-mounted brackets, you can securely display the charming Small Nantucket Blue Flower Box. This planter, crafted from galvanized steel with a lovely blue patina finish, measures 22 inches in length and stands 5 inches high, making it a perfect space-saving option. The wrought iron brackets are designed to project 7.5 inches from the wall, ensuring ample room for your plants while remaining aesthetically pleasing.