Metal Window Box Planter 140cm long – Handmade Steel Planter

140cm Slimline Metal Window Box Planter – 12cm High x 12cm Wide – Handmade Steel Planter (Black, Anthracite, Juniper Green, Goosewing Grey)

A long, slimline metal planter designed for modern outdoor spaces.

At 140cm in length, this low-profile planter is ideal for windowsills, patios, balconies and garden walls — perfect for herbs, flowers and structured planting.

Handmade in the UK from durable plastisol-coated steel, with a clean folded edge and protective rubber trim for a refined, long-lasting finish.

Dimensions (External):
Length: 140cm
Width: 12cm
Height: 12cm
Tolerance: ±5mm due to handmade nature

Available Colours:
Black
Anthracite
Juniper Green
Goosewing Grey

Key Features:
• Handmade in the UK
• Slimline, low-profile design
• Made from 0.7mm plastisol-coated steel
• Precision folded construction for strength
• Rubber edge trim fitted around the full top edge
• Built-in drainage via unsealed base edges
• Weather-resistant – suitable for year-round outdoor use
• Lightweight yet strong
• Clean, modern finish

Drainage & Construction:

This planter is made in two sections, allowing for natural drainage through three unsealed edges along the base.

This design allows excess water to escape without visible drainage holes, maintaining a clean external appearance.

Additional drainage holes can be added if required; however, these are not offered as a service and would need to be drilled by the customer.

Planting Guide:

Suitable for direct planting with compost for herbs, flowers and shallow-root plants.

For water retention or indoor use, the planter can be lined with pond liner or similar material.

Build Details:

Precision Folded Steel
Formed from 0.7mm coated steel for a clean, strong and lightweight structure

Rubber Edge Trim
Protective trim fitted around the entire top edge for a safe, neat finish

Ideal For:
• Windowsills
• Garden walls & fencing
• Patios & decking
• Balconies
• Narrow planting spaces
• Herb gardens

Lead Time & Delivery:
• Made to order
• Typical dispatch: 7 working days
• Busy periods: up to 21 working days
• Sent via tracked courier (Royal Mail / Parcelforce)

Important Notes:
• Handmade from coated steel
• Minor marks or variations may occur due to the manufacturing process
• Each piece is individually made and unique

Need a custom size?
We can make these to your exact measurements — just get in touch.