Slimline Metal Window Box – 200mm High
Black Metal Window Box Planter – Slimline Balcony & Windowsill Planter
Handmade in the UK from Repurposed Steel
📏 Size (External)
Length: 94.5cm (945mm)
Width: 12cm (120mm)
Height: 20cm (200mm)
Tolerance: ±5mm due to handmade nature
A slim, long metal window box planter designed for narrow spaces.
Perfect for windowsills, balconies, patios, decking, fencing and urban gardens, this modern black steel planter lets you grow herbs, flowers or greenery where space is limited.
✅ Key Features
• Handmade in Lincolnshire, UK
• Slimline design – ideal for narrow ledges & balconies
• Made from durable plastisol-coated steel
• Removable rubber edge trim included for a clean, safe finish
• Built-in drainage via three unsealed edges
• Fully weather-resistant – suitable for year-round outdoor use
• Strong, rigid and built to last
🌿 Perfect for Small Space Gardening
Designed with urban homes in mind, this narrow window box planter is ideal for flats, terraces and compact gardens. Grow herbs in a kitchen window, flowers on a balcony, or greenery along fencing and decking.
♻️ Made from Repurposed Materials
Each planter is handmade from 0.7mm coated steel, commonly used in roofing and cladding.
As a result of using repurposed materials, you may notice the occasional light scratch, mark or small ding. These are cosmetic only and do not affect the strength, durability or performance of the planter.
🔧 Drainage & Care
• Built-in drainage – no drilling required
• Additional holes can be added prefilling using a household drill if required
• Rubber trim is removable and can be repositioned or secured
• For best results, line with pond liner, grow bags or similar
• Add drainage material (grit, stones, organic matter) beneath soil
📦 Handmade to Order
Each planter is made in small batches in our Lincolnshire workshop.
Please check your delivery on arrival and report any damage to the courier immediately so this can be resolved quickly.
A durable, slimline metal planter with a clean industrial look — designed for tight spaces and built to last in the British climate.