Aluminium vs Timber vs Steel: Which Outdoor Seating Material Is Right for You?

Outdoor seating is available in a wide range of materials, from metal and timber to plastic and recycled options. While each can help create an inviting outdoor space, not all are suited to the same environments. Australia’s weather can be harsh, so the material you choose should be able to handle both the heat and the rain while maintaining its appearance and structure.

Your outdoor seating should not only complement your space but also stand the test of time. Among the many materials available, aluminium remains one of the most popular and practical choices for councils, schools, and workplaces. Still, every material has its pros and cons, and understanding them can help you make the best decision for your project.

Below, we compare aluminium with other common outdoor seating materials to help you find the right fit for your space.

Aluminium

Aluminium is one of the most versatile and dependable materials for outdoor furniture. It’s durable, lightweight, and easy to maintain, which makes it a favourite for parks, schools, and coastal areas.

Pros

• Doesn’t rust, even in coastal environments
• Lightweight and easy to move
• Simple to maintain and clean
• Can be powder coated in a wide range of bright, vibrant colours
• Long-lasting and weather resistant
• Ideal for seaside or high-humidity locations
• Available in a range of modern powder-coated finishes

Cons

• May blow over in strong winds if not properly secured
• Can heat up quickly if exposed to direct sunlight for long periods

SeatsPlus offers a range of bench seating and spectator seating options made from premium aluminium, ensuring long-lasting comfort and style for any environment.

Merbau Timber

Merbau timber is a classic choice for creating a natural, warm look in outdoor spaces. It’s strong, durable, and contains natural oils that help it resist cracking, splitting, and shrinkage.

Pros

• Offers a warm, natural aesthetic
• Sturdy and durable for everyday use
• Can withstand harsh temperatures and climates
• Naturally resistant to termites and fungal decay
• Excellent wear and tear over time
• Long-lasting with proper care
• Naturally fire-resistant, ideal for bushfire-prone areas

Cons

• Can fade or weather over time without maintenance
• May require regular oiling or sealing
• More susceptible to rot or decay if not properly treated

Merbau is an excellent choice for shaded areas or where a natural, organic look is preferred. SeatsPlus also offers durable Merbau seating options designed for public spaces, blending beauty and practicality.

Wrought Iron

Wrought iron provides a timeless, rustic look that adds charm and sophistication to outdoor spaces. It’s extremely durable and can handle strong weather conditions ,but requires more maintenance to prevent rust.

Pros

• Very durable and long-lasting
• Can withstand heavy use and harsh weather
• Provides a classic, historic appeal
• Perfect for decorative or traditional settings

Cons

• Extremely heavy and difficult to move
• Can rust or corrode if not maintained properly
• Can become uncomfortable in extreme heat or cold
• May require protective coatings or regular repainting

While wrought iron offers visual appeal, it’s better suited for private gardens or decorative use rather than high-traffic public spaces due to its maintenance needs and weight.

Plastic

Plastic outdoor furniture is lightweight, waterproof, and available in many colours and designs. It’s often chosen for its affordability and ease of cleaning but may not hold up as well in long-term outdoor environments.

Pros

• Lightweight and easy to reposition
• Waterproof and simple to clean
• Available in a wide variety of colours and shapes
• Cost-effective for short-term or low-maintenance needs

Cons

• Susceptible to UV damage, causing fading and brittleness
• Can lose colour and strength over time
• May blow away in strong winds
• Not as durable for high-traffic or public use

Plastic can be practical for temporary setups or low-use areas, but for long-term installations, materials like aluminium or timber offer better durability and performance.

Recycled Plastic

Recycled plastic furniture has become an increasingly popular choice for councils and schools focused on sustainability. It offers an eco-friendly option that’s easy to maintain, although its appearance may not have the same warmth as timber.

Pros

• Made from recycled materials, supporting sustainability
• Resistant to moisture, rust, and pests
• Low maintenance and easy to clean
• Long-lasting in all weather conditions

Cons

• Can look less natural than timber
• May not have the same structural strength as metal or hardwoods

This material is ideal for organisations that value sustainability and need furniture that can withstand heavy outdoor use with minimal upkeep.

Comparing Aluminium, Timber, Steel, and Plastic

Here’s how these materials compare across key factors:

Aluminium offers the best balance of strength, low maintenance, and longevity, making it a standout choice for outdoor furniture in Australia’s changing climates.

Which Material Is Best for Your Space?

The best material depends on where and how your furniture will be used. For coastal areas, aluminium is ideal because it resists rust and moisture. Timber suits shaded community spaces where a natural aesthetic is desired. Recycled plastic works well for sustainable public projects, while wrought iron is best for decorative or private spaces.

If you’re looking for a reliable, long-lasting option, aluminium remains the top choice for most environments. Explore our full range of park settings, bench seating, and shelters to see how different materials can suit your outdoor project.

Invest in Outdoor Seating That Stands the Test of Time

No matter the space, choosing the right material can make all the difference in durability, maintenance, and visual appeal. At SeatsPlus, we create outdoor seating solutions designed to handle Australia’s unique weather conditions while providing lasting comfort and style.

Discover our range of durable outdoor furniture or get a quote today to find the perfect fit for your park, school, or workplace.