The Complete Guide to Outdoor Tile Trims: L Shape, Square Edge, Step Edges & More

When laying outdoor porcelain tiles, the finish is just as important as the foundation. That’s where tile trims come in — not only enhancing the visual appeal of your installation but also providing vital protection for tile edges and joints exposed to the elements.

In this guide, we explore four essential types of outdoor tile edging profiles, each with unique benefits depending on your space and requirements. Whether you're tackling a patio, balcony, or outdoor stairway, this overview will help you choose the right trim for a long-lasting, professional finish.

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1. Aluminium L Shape Profile – Sleek & Versatile

If you're after a clean, discreet finish, the Aluminium L Shape Profile is a reliable choice. Designed for use with 20mm outdoor porcelain tiles, this trim offers edge protection while maintaining a minimalist look.

The 20mm tile trim is available in a variety of standard finishes, including a versatile stone effect that blends beautifully with natural stone or modern tiles. The L-shaped design sits flush against the tile edge, preventing chipping and water ingress while elevating the overall aesthetic of your outdoor area.

View Aluminium L Shape Profile →

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2. Square Edge Aluminium Profile – Bold Architectural Definition

For a more striking, defined finish, the Aluminium Square Edge Profile delivers. It features a 10mm wide top face that creates a bold visual line — ideal for contemporary landscaping, garden steps, or feature edges.

Made from durable aluminium and available in powder-coated finishes, this 20mm tile trim adds character while still protecting tile edges from damage. It can even double as a feature strip within tiled layouts, giving your project a custom-designed look.

View Aluminium Square Edge Profile →

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3. Stainless Steel Straight Edge Profile – Premium Durability

When you need something with a modern look and exceptional resilience, stainless steel is the answer. Our Stainless Steel Straight Edge Profile is purpose-built for external tile installations, combining sleek aesthetics with high performance.

Available in both brushed and polished finishes, this trim adds a luxury touch to patios, outdoor kitchens, and contemporary terraces. The stainless steel construction not only provides a clean finish but also resists corrosion — perfect for exposed environments.

View Stainless Steel Straight Edge Profile →

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4. Aluminium Tile-In Step Edge Profile – Safety with Style

Outdoor steps demand more than good looks — they require safety. The Aluminium Tile-In Step Edge Profile delivers both. Its innovative L shape with a grooved anti-slip surface provides a secure grip underfoot, especially in wet or high-traffic areas.

This trim also protects the riser, tile edge, and joint gap, preventing cracking and water ingress. Ideal for balconies, garden stairs, or commercial walkways, it’s a must-have where tiled steps are involved.

View Tile-In Step Edge Profile →

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Conclusion: Choose the Right Trim for the Right Space

Outdoor tile trims are not just finishing touches — they’re essential components that protect your tiles, improve safety, and define the character of your space. Whether you need a minimalist look, a bold edge, or a safety-focused step profile, there's a solution designed to perform and impress.

Need help choosing? Contact our team for expert advice or browse our full collection of 20mm outdoor tile trims today.