Raised Garden Beds & Planter Boxes

Grow vegetables, herbs and flowers with Steelmates’ range of raised garden beds and planter boxes for New Zealand homes. Choose from metal garden beds and elevated planters in different sizes, whether you’re starting a backyard vegetable patch or adding a compact growing space to your patio.

Our garden boxes help keep planting areas tidy and make it easier to manage your growing soil. Choose an open-bottom bed for placing over garden soil, or an elevated planter with a contained base for a smaller outdoor space. Check each product’s dimensions, base design and drainage requirements to find the right fit.

  • Powder-coated aluminium zinc panels

    A strong steel core with aluminium-zinc coating and a powder-coated finish creates a durable, easy-care bed for your vegetables, herbs and flowers.

  • Open Bottom Design

    The open-bottom design lets roots reach into the soil below and allows water to drain naturally when placed on suitable ground.

  • Safer Edge

    Smooth finished edges, rounded corners and a protective top strip make planting, tending and harvesting more comfortable.

  • Get Growing Sooner

    A straightforward panel connection system uses fewer screws, helping simplify assembly so you can get on with planting.

  • Space to Flourish

    An open base gives roots room to grow into the ground below and supports natural drainage when placed on suitable soil.

  • Thoughtfully Finished Edges

    Wide, folded top rails create a smooth edge, making your garden bed more comfortable to handle while planting and tending.

Steelmates Garden Bed vs Wooden Planter

Steelmates® Garden Bed

✔ Accessory-compatible with reinforced edges

✔ Maintains vibrant, clean look.

✔ Made with durable, non-fading materials.

✔ 10+ years of durability.

✔ Stands tall at 40cm for easier gardening.

Wooden Garden Beds

✘ No add-ons or built-in safety features.

✘ Fades and deteriorates within a few years.

✘ Prone to fading, cracking over time.

✘ Typically 4-5 years; prone to decay.

✘ Shorter, usually 20cm, requiring more bending.

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A More Sustainable Way to Grow

A few thoughtful choices can make growing at home more sustainable — helping you grow more, use resources wisely, and create a garden built to last

  • Turn Organic Waste into New Growth

    Use compost made from suitable kitchen and garden waste to enrich the soil and return nutrients back to your plants

  • Grow Food Closer to Home

    Grow vegetables, herbs and fruit at home, helping reduce packaging and the transport involved in store-bought produce

  • Use Water More Efficiently

    A contained growing area makes it easier to water directly where plants need it and reduce unnecessary water use

Frequently asked questions

Do these planter boxes require assembly?

Assembly requirements vary by model. Review the product description and instructions to check the components, tools and setup required before ordering.

Can I put a raised garden bed on concrete or paving?

Suitability depends on the model. Check its base design, drainage requirements and installation instructions first. Open-bottomed beds may need additional measures to manage drainage and prevent growing mix from escaping onto the surface.

How much soil will I need to fill my garden box?

For a rectangular bed, multiply its internal length, width and intended fill depth in metres to estimate the volume in cubic metres. Multiply that figure by 1,000 for litres. Curved shapes require a different calculation, and the amount also depends on your chosen fill level.

What size raised garden bed should I choose?

Choose a size that fits your space and allows you to reach the planting area comfortably. Consider access from one or both sides, leave room for paths, and check that the bed is deep enough for your intended plants.

What is the difference between a planter box and a raised garden bed?

The terms are often used interchangeably, but construction varies. Some planters have a base, while many raised garden beds are open-bottomed and sit directly on the ground. Check the individual product specifications before choosing a location.

What are the materials for your planter boxes?

The planter boxes are made out of colorsteel processed steel panels and galvanised steel framing. Sturdy material for long-lasting support

What does 4 layout options and 9-in-1 mean?

For some of our planter boxes, you can choose from the different layout options to find the right size for you. Get the perfect size!

Do they come with a base?

They do not come with a base. However, if you plan to place it on surfaces like decking or concrete, we suggest making a base to keep the soil contained and protect the underlying surface.

Raised Garden Beds and Planter Boxes for NZ Homes

Create a dedicated space for vegetables, herbs and seasonal flowers with a raised garden bed or planter box. A defined growing area keeps your garden organised and lets you choose a soil mix suited to your plants.

Choosing a Garden Box for Your Space

Start by measuring the available area and allowing room to walk, water and harvest around your garden box. Compact planters can suit smaller outdoor spaces, while larger raised beds provide more planting room for a backyard vegetable garden.

Consider planting depth as well as width and length. Herbs and salad greens generally need less root space than larger vegetables, so choose a bed that suits what you want to grow.

Open-Bottom Beds or Elevated Planters?

Open-bottom raised garden beds sit over the ground, allowing roots to extend into the soil beneath. Prepare the site before installation and choose a position with suitable sunlight and drainage.

Elevated planter boxes lift the growing area higher, which can reduce bending when tending plants. For use on patios or decks, check the planter’s base, drainage and filled weight, and protect the surface beneath it.

Metal Raised Garden Beds

Metal garden beds offer an alternative to timber for an organised outdoor growing area. Compare each model’s dimensions, construction and assembly details to choose one that fits your garden layout.

Find Your Raised Garden Bed or Planter Box

Browse Steelmates’ raised garden beds and planter boxes to compare sizes and styles. Check individual product pages for specifications, availability and New Zealand delivery options.