3mm PPC Mild Steel Planters

The 3mm PPC Mild Steel Planters are designed for outdoor and indoor spaces that need strong, clean, and colour-matched planting features. Made from 3mm thick mild steel and finished with polyester powder coating, these planters offer a practical balance of structure, durability, and visual flexibility for gardens, patios, terraces, courtyards, and commercial landscape schemes.

This product is available from £325.00 excluding VAT and £390.00 including VAT. Listed size options include 450mm, 500mm, 600mm, and 750mm heights, with 500mm and 1000mm width options depending on the selected variant. The product page also includes RAL colour selection and notes that the planter can be supplied with or without drainage holes.

For wider project planning, these planters can be viewed alongside the full Metal Planters range, including 3mm Corten Steel Planters and 4mm PPC Aluminium Planters.

Key Benefits

• Made from 3mm mild steel for a strong planter structure suitable for outdoor and indoor settings.

• Polyester powder coated finish helps provide a smooth, modern appearance with added surface protection.

• Available in any RAL colour, making it easier to match exterior design schemes, building details, branding, or landscape furniture.

• Suitable for gardens, patios, roof terraces, courtyards, commercial landscapes, and architectural projects.

• Fully welded corners create a cleaner, more professional planter finish.

• Can be supplied with or without drainage holes depending on the planting requirement.

• Useful alternative to 3mm Corten Steel Planters where a painted RAL colour finish is preferred instead of a natural weathered appearance.

Product Details and Specification

These product details are based on the current Online Metal Store Ltd product page, which lists the price, material thickness, RAL colour option, size variants, drainage option, and custom-fabricated item notice. 

Where This Product Is Commonly Used

These 3mm PPC mild steel planters are commonly used in private gardens, patios, balconies, roof terraces, courtyards, office entrances, hospitality areas, schools, retail spaces, and commercial landscaping projects. They work well where a planter needs to provide structure, colour consistency, and a clean architectural finish.

The Metal Planters page explains that Online Metal Store Ltd supplies planters for patios, balconies, gardens, rooftops, commercial landscaping, and private outdoor spaces. It also notes that the range includes aluminium, Corten steel, and powder-coated steel planters.

Why PPC Mild Steel Is a Good Choice

Mild steel is a practical material for planters because it provides strength and rigidity, especially in larger planter sizes where the structure needs to hold soil, planting, and water. The 3mm thickness helps create a strong planter body suitable for outdoor spaces and commercial settings.

The PPC finish gives the mild steel surface a clean coloured coating, helping protect the material and create a more refined appearance. This is useful when the planter needs to match other design details, such as cladding, doors, windows, signage, aluminium copings, fascia, soffits, or outdoor furniture.

Powder coating is often used as a corrosion protection method for steel structures, but the final durability depends on the correct surface preparation, coating specification, site exposure, and ongoing maintenance.

Finish and RAL Colour Options

These planters are available in any RAL colour, giving buyers strong design flexibility for residential, commercial, and architectural projects. This makes them a good option where the planter needs to match a specific exterior colour scheme rather than develop a natural patina like Corten steel.

The official RAL colour system provides recognised colour references across RAL Classic, RAL Effect, and RAL Design System plus. View official RAL colours.

For projects where powder coating specification matters, it is sensible to confirm the required finish, colour, gloss level, location, and exposure before ordering. This is especially important for coastal, exposed, high-traffic, or commercial environments.

Drainage and Planting Notes

The product page states that these planters can be supplied with or without drainage holes, depending on the planting requirement. Drainage holes are normally important for outdoor planting because they help excess water leave the planter and reduce the risk of waterlogged roots.

The Royal Horticultural Society advises that containers should have drainage holes in the base and notes that container plants need regular watering, especially during spring and summer. Read the RHS container growing guide.

Before ordering, confirm whether the planter will be used for shrubs, grasses, flowers, herbs, small trees, screening plants, or decorative planting. The right drainage setup, liner, growing medium, and placement can all affect long-term planting performance.

Installation and Ordering Notes

Before ordering, check the required height, width, and length carefully. The listed size options include 500mm and 1000mm width variants, with 450mm, 500mm, 600mm, and 750mm height options. Since this is a custom-fabricated product, the product page advises buyers to double-check measurements before ordering and states that the item is non-returnable unless faulty.

You should also consider the planter’s final location, access route, drainage requirement, finished weight when filled, ground surface, colour choice, and maintenance needs. Large planters can become heavy once filled with compost, plants, and water, so the base or surface should be suitable for the expected load.

If you are planning a wider exterior scheme, you may also want to view Metal Planters, Aluminium Copings, Fascia and Soffits, and Door Canopy and Window products for a more coordinated building finish.

Why Buy From Online Metal Store Ltd

Online Metal Store Ltd supplies metal planters and architectural metal products for UK homeowners, builders, contractors, landscapers, and commercial project teams. Their Metal Planters page states that the range includes aluminium, Corten steel, and powder-coated steel planters for private gardens and commercial landscaping.

This product is useful for buyers who want a custom-fabricated 3mm mild steel planter with a PPC finish and RAL colour flexibility. Ordering from the same supplier can also help keep planters, aluminium roofline products, copings, fascia, soffits, and exterior metalwork more visually consistent across a project.

If you are unsure about size, colour, drainage, finish, or site suitability, use the Contact Us page before ordering.

FAQ Section

What are 3mm PPC mild steel planters used for?

They are used for planting in gardens, patios, terraces, courtyards, balconies, commercial landscapes, and indoor or outdoor architectural spaces.

What does PPC mean?

PPC means polyester powder coated. It refers to the coloured powder coated finish applied to the mild steel surface.

What sizes are available?

The product page lists eight size options, including 450mm, 500mm, 600mm, and 750mm height options, with 500mm and 1000mm width options depending on the selected variant.

Can I choose a RAL colour?

Yes. The product page states that the planters are available in any RAL colour, allowing them to match a wider project colour scheme.

Can these planters be supplied with drainage holes?

Yes. The product page states that they can be supplied with or without drainage holes depending on the planting requirement.

Are these suitable for commercial landscaping?

Yes. They are suitable for commercial terraces, courtyards, entrances, hospitality areas, office landscapes, and public-facing outdoor spaces where a clean powder coated planter is required.

Are these planters returnable?

The product page states that this is a custom-fabricated item made to the selected size and finish, and it is non-returnable unless faulty. 

Choose the correct size and RAL colour for your 3mm PPC mild steel planter before ordering. If you are unsure about drainage holes, finish, colour matching, or site suitability, contact Online Metal Store Ltd for guidance before purchase.