A timber deck turns the bare yard behind a new Point Cook home into somewhere to sit, eat and let the kids play, and it gives older homes in Werribee and Hoppers Crossing a warm, natural outdoor floor. Wyndham's climate is hard on timber in a particular way: Laverton RAAF, the Bureau of Meteorology station beside Point Cook, records about 8.5 hours of sun a day in January and a mean afternoon wind of 21 km/h across the year, so boards dry, grey and move faster than in leafier suburbs. Peak Decking builds treated pine and hardwood decks across Point Cook and the rest of Wyndham, with stumps sized to a soil test, boards spaced and fixed to move, and a finish chosen for the sun.
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The timber decides how the deck looks, how long it lasts and how much care it needs. Most decks in Point Cook use one of three types.
Treated pine is the most economical decking timber. It is pressure-treated against rot and termites, straight and easy to work, and takes stain or paint well, so it can be coloured to suit the house. It is softer than hardwood, so it marks more easily under furniture, and it needs regular oiling or staining to stay sound in strong sun.
Merbau is the most popular hardwood decking board in Wyndham. It is dense, stable and naturally durable, with a rich red-brown colour that deepens with oil. It bleeds tannin when new, so the first rains can stain nearby paving, and the boards are oiled before and after laying to settle it. See merbau decking.
Australian hardwoods such as spotted gum, blackbutt and ironbark are hard, heavy and long lasting, with lighter honey and grey-brown tones than merbau. Spotted gum has a lively grain and good fire resistance; blackbutt is a pale, even board; ironbark is among the hardest of all. See spotted gum decking.
Decking boards usually come in 90 mm and 140 mm widths. Narrow boards move less, cup less and give a traditional look, which suits Wyndham's dry, windy summers. Wide boards cover faster and give a modern look but need careful fixing and spacing so they stay flat. The width is chosen with the timber and the size of the deck.


Most homes in Point Cook, Tarneit, Truganina and Wyndham Vale were built in the last twenty years on compact blocks, often with a small alfresco slab and little else at the back. A timber deck is designed around that layout.
The most common deck here extends the alfresco slab into the yard at the same level, so the living room opens straight onto one large outdoor floor. A low deck sits close to the ground, needs no balustrade and keeps the view across the garden open. The deck height is set to finish just below the door sill so water cannot run inside.
On corner blocks and homes with doors on two sides, a deck can wrap around the corner, joining the alfresco to a side yard or a second living area. Board direction is planned so the joins look deliberate and water drains away from the house on both sides.
Where the yard falls away, or the slab sits higher than the lawn, broad timber steps or a second, lower deck level connect the two. Wide steps double as extra seating, and each level is kept within the heights that suit the block and the permit rules. See deck stairs and balustrades.
What sits under a deck decides how long it stays level. Wyndham sits on the western basalt plains, where the clay shrinks in summer and swells in winter, so the frame is built for that movement.
Every deck starts with a soil test that sets the AS 2870 site class for the block. Stumps or posts sit on concrete footings sized and set to the depth that class calls for, so the deck does not rise and fall with the clay. Galvanised steel stumps or brackets keep timber off the ground.
Bearers sit on the stumps and joists sit on the bearers, at spacings set by the board thickness and the timber species. Boards are fixed with stainless or galvanised screws and laid with a gap between each one, so they can swell in damp winter weather and shrink in dry summer heat without buckling or opening wide cracks.
Even a low deck needs air moving underneath, or the frame stays damp and the boards cup. The frame is kept clear of the soil, the sides are left partly open or battened, and the ground is shaped so water drains away rather than pooling under the deck.


Laverton RAAF records a mean maximum of 25.8 °C in January, about 8.5 hours of sun a day, and steady afternoon wind, peaking in December at 23.5 km/h. That combination dries timber quickly, which is why the finish matters as much as the build.
A new deck is oiled on all faces before or just after laying, then again a few weeks later once the timber has settled. A penetrating decking oil keeps moisture moving in and out evenly and slows greying from the sun. In Wyndham, a deck in full sun usually needs re-oiling every six to twelve months. See deck restoration and oiling.
Cupping happens when one face of a board dries faster than the other. Correct board gaps, airflow under the deck, oiling the underside as well as the top, and narrower boards in full sun all keep boards flat. Checking and splitting at the ends is limited by sealing every cut end before the board goes down.
Every timber deck is priced from a free measure and a written, itemised quote, so each part of the job is shown on its own line.
The area of the deck sets how much frame and decking is needed. Treated pine is the most economical board, merbau sits in the middle and spotted gum, blackbutt and ironbark cost more. Wider boards and premium grades with fewer knots add a little more.
A low deck on a level block is the simplest job. Taller decks need longer stumps, bracing and a balustrade; steps and second levels add framing; and a yard reached only through the house means materials are carried through, which takes longer. A building permit, where one is needed, is listed separately. See deck permits.


Timber and composite decking are the two main choices for a new deck in Point Cook, and they suit different priorities.
Timber looks and feels natural, can be sanded and re-oiled to look new, and treated pine is the most economical deck of all. It does need regular oiling in Wyndham's sun to stop greying and cracking. Composite boards cost more to start with but need no oiling, resist fading and do not splinter, which suits busy families and rental properties. Timber suits owners who like a natural deck and do not mind a yearly oil; composite suits those who want to sweep it and forget it. On lifespan, a hardwood deck that is oiled regularly and kept dry underneath can last for decades, while treated pine lasts well with the same care but marks and weathers sooner. Composite boards do not rot and are sold with a manufacturer's warranty, which is checked for the board chosen. Both use the same frame and footings underneath, so the frame is built to outlast the boards either way.

A visit to measure the house and the yard, talk through boards, layouts and finishes, and then a written, itemised quote.

Drawings, engineering and a soil test are prepared, overlays are checked and the building permit is lodged.

Footings, frame and boards are built and inspected at each stage, the site is cleaned up and the finished deck is handed over.
The cost depends on the size, the timber, the height and the site. Treated pine is the most economical, merbau is in the middle and spotted gum and other hardwoods cost more. Taller decks, steps and difficult access add to the price. A free measure gives a written, itemised quote.
Merbau is the most popular hardwood for its colour and durability. Spotted gum and blackbutt are harder, lighter in colour and very long lasting. Treated pine is the most economical and can be stained to any colour.
A deck in full Wyndham sun usually needs re-oiling every six to twelve months. A deck under a roof or in shade can go longer.
Most decks need a building permit. A small, low, free standing deck can be exempt. A deck more than 800 mm above the ground can also need a planning permit on a smaller lot. This is checked at the measure.
Boards dry unevenly in strong sun and wind. Correct gaps, airflow under the deck, sealed cut ends and regular oiling keep them flat and sound.
The area, the door sill height, the fall of the ground and access are measured. Timber, board width and design are talked through, and a written, itemised quote follows.

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