Timber vs Aluminium Slat Fencing — Which Should You Choose?

Slat fencing is one of the most popular privacy fencing styles in NZ. Here's how timber and aluminium compare.

Appearance

Timber slat fencing has a warm, natural aesthetic that suits traditional and heritage-style homes. Aluminium slat fencing offers a contemporary, clean look — and many manufacturers now offer wood-grain powder-coat finishes that closely replicate the look of timber without the maintenance overhead.

Maintenance

Timber requires oiling or staining every 2–3 years. Aluminium needs no maintenance beyond an occasional wash-down.

Lifespan

Timber lasts 12–25 years in NZ depending on species and exposure. Aluminium lasts 40+ years with no repainting required.

Coastal suitability

Timber performs poorly in coastal environments due to moisture and salt damage. Aluminium is excellent for coastal use — it does not rust or corrode.

Cost

Timber has lower upfront cost but higher lifetime cost due to maintenance and eventual replacement. Aluminium costs more upfront but is significantly cheaper over the lifetime of the fence.

Sustainability

FSC-certified timber is available for those wanting a sustainable natural option. Aluminium is highly recyclable at end of life.

Which should you choose?

Aluminium slat fencing is now the preferred choice for new builds in NZ, particularly on coastal sections and modern homes. Timber remains popular for those seeking a traditional aesthetic on a tighter budget.

View Edgesmith's aluminium slat range — including wood-look finishes — at edgesmith.co.nz.