Expert ModWood Deck Installation for Central Coast Homes

Installing ModWood isn’t like throwing down some timber boards and calling it done. There’s a specific process that ModWood requires, and cutting corners means voiding warranties and risking performance issues down the track.
Getting the Foundation Right
Everything starts with proper substructure. We use either treated timber or aluminium framing, depending on your specific site conditions and budget. For Central Coast properties with challenging slopes or poor drainage, aluminium often makes more sense – it won’t rot, twist, or deteriorate regardless of moisture exposure.
Spacing and Support
ModWood boards require joists spaced at 450mm centres maximum. This isn’t negotiable – it’s what ensures your deck remains stable and level for decades. We’ve seen DIY installations and dodgy contractor work where joists were spread too far apart. Those decks develop bounce and flex that shouldn’t be there.
Hidden Fastening Systems
We use ModClip hidden fastening systems on every installation. These clips secure boards from underneath, giving you a clean surface without visible screws or nails. It looks better, performs better, and prevents water pooling around fastener holes.
Expansion Gaps Matter
Composite materials expand and contract with temperature changes. We factor in precise expansion gaps between boards and at all fixed points – walls, posts, and structures. Get this wrong and you’ll have buckling boards come summer.
Proper Ventilation
Air circulation beneath your deck prevents moisture buildup and ensures optimal performance. We design ventilation into every installation, particularly important in Central Coast’s humid coastal environment.
Finishing Touches
Every cut edge gets proper finishing. Starter clips and end caps aren’t just cosmetic – they’re part of ensuring your deck meets manufacturer specifications and maintains warranty coverage.
When we say we follow ModWood’s installation guidelines exactly, we mean it. Your warranty depends on it, and so does your deck’s long-term performance.

If you’ve lived on the Central Coast for any length of time, you know what salt air does to outdoor materials. Timber rots faster, metal corrodes, and finishes break down under constant assault from ocean spray and humidity.
ModWood was designed for exactly these conditions.
Salt air doesn’t touch it. While your neighbours are replacing rotted timber boards or dealing with rust stains from corroded fasteners, your ModWood deck keeps performing exactly as it did on day one. There’s no chemical reaction, no deterioration, no gradual breakdown of the material’s integrity.
Pool surrounds are where ModWood really shines. Constant moisture, chlorine or salt water splashing, wet feet tracking across the surface – conditions that destroy timber within years. ModWood handles all of it without complaint. We’ve installed dozens of pool decks across Terrigal and Avoca Beach, and owners consistently report the same thing: it looks as good five years later as it did when we finished the job.
Year-round performance without seasonal maintenance means you’re not stuck re-treating your deck before summer or repairing winter damage come spring. It just works, consistently, regardless of what Central Coast weather throws at it.
That’s the advantage of choosing materials specifically engineered for Australian coastal conditions rather than trying to make timber survive where it was never meant to last.