FAQs
Frequently Asked Questions
Does Composite decking warp in the sun?
Composite decking is highly resistant to warping, even in direct sunlight. Proper installation and quality materials help ensure a warp free life for your deck.
Can composite decking handle Sydney’s heat and sun?
Yes, it can. Good-quality composite decking is made to cope with hot Aussie summers. It won’t warp or crack like timber can, even when the sun’s beating down.
Will composite decking fade over time?
Most quality boards are built with UV protection to keep their colour looking great for years—perfect for Sydney’s sunny backyards.
Is Composite decking safe to use in bushfire zones?
Many composite decking options are designed to meet up to BAL 29 (Bushfire Attack Level) ratings. Just check that your chosen board is certified for the zone you’re in.
How does Composite decking compare to timber in Sydney’s weather?
Timber needs regular oiling and can twist or split over time. Composite decking is a low-maintenance alternative that holds up much better in Sydney’s mix of heat, rain, and salt air.
Is Composite decking slippery when wet?
Most composite decking has a textured, slip-resistant surface, making it a smart choice around pools or in damp areas. Some boards are even made specifically for better grip. Check your chosen board’s slip rating before installation.
I am hearing a lot about composite decking. Is it good?
If you choose the right composite board for your situation, you will achieve a really wonderful look as well as getting a deck that will give you 25 years and more of service.
What type of timbers can I choose from?
We have an extensive range for you to choose from based on the look you like and how practical it will be for you. Choose from the list below and more.
- Trex composite
- Millboard composite
- Newtech Wood composite
- Spotted gum
- Blackbutt
- Merbau
- Ironbark (grey and red)
- Turpentine
- West Australian karri
- Jarrah
- Teak
How long does it take to build a deck?
The timeframe it takes to build a new deck can vary depending on the project’s size and complexity of the deck design, the deck’s location, and any preparation work that is required for us to commence work. For simple projects, the turnaround time may be less than a week from start to finish. For more complex decking projects, the process may take a few weeks or even months with some of the commercial-scale work that we carry out.
We recently completed a commercial deck and walkway area that was 127 metres long. It ranged from being almost at ground level to 4 metres off the ground in some places. The installation time for that project was seven weeks.
A 90-square-metre trex deck replacement built over two levels has just been completed in over two weeks.
Before we commence work, we draft plans and provide an accurate timeframe for work (weather permitting) so that you’ll have a clear timeframe. Like anything, we can run into unexpected hurdles that can change timeframes, but we’ll always ensure that you know how we are progressing throughout the build.
An advantage of choosing us for your deck makeover or installation is that you will have your portal login ID that gives you access to our programme to see progress on your project. You can feel free to ask questions or make comments directly through the portal, and a staff member will immediately be notified and will be able to respond very quickly.
If you seriously consider adding a deck to your property, some of the following considerations may affect how long your project will take.
- Does your site have good access or difficult access? The more difficult the site, the longer it will take to bring materials in and take waste away.)
- Are you looking to have a complex design or a more straightforward design? The more complex your design, the longer it will take to install.
- Do your materials have to be specially ordered? Some overseas materials (and Australian sourced) can take up to 6 months to arrive on site.
- What is the size of your deck? Generally speaking, the larger the deck – the longer the installation will take.
- Adding features to your design will generally add time to complete your project. For instance, storage, bench seats and barbeque areas will add time.
How much does it cost to build a deck in NSW?
Decking costs will vary depending on the materials you choose and the nature of the site your deck is being built on. Balcony decks will generally cost more than Alfresco decks, for instance.
You should allow between $600 and $1200 a square metre, with more complex decks being at the higher price point.
If you would like an estimated cost, go to our ‘Resources’ page and select either the Composite or Timber deck option.
I'm not sure of the deck design I want. Can you design one for me?
Yes! We have a full design service that is available for our clients.
Is decking cheaper than concrete?
Decking is generally more expensive than concrete. There is a lot more work involved in the construction of a deck and the deck boards are more expensive than concrete per square metre. The work is also of a higher level of finish than concrete and so will take more time to build.
Decking costs per sq metre will usually range from $600 to over $1000 if the deck needs special materials or is cantilevered over a sloping site, for instance.
How long long will my new deck last?
Beware the cheap quote for your deck. If built properly, with the correct materials, substructure, and maintenance, a timber or composite deck should last 25 years or more.
Do I need a building permit for my deck in NSW
In NSW, installing balconies, patios, decks, and verandas may not require approval if the proposal meets the relevant development standards in the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 (the State Policy).
Some of the critical considerations that will ensure that your deck is exempt from a development proposal include the following:
- The deck must be located behind the building line of any road frontage
- The deck must not have an area of more than 25m²
- Not have to enclose walls that are higher than 1.4-metres
- Not have a floor height that is more than one metre above the existing ground level
- Not be more than three metres at its highest point above the current ground level
- If metal is used, it must be low reflective and use pre-coloured materials
- Decks located on bushfire-prone land must be less than 5-metres from a property
- Decks constructed in a heritage conservation area or a draft heritage conservation area must be located behind the building line of any road frontage.
- In some cases, it may be necessary to contact your local council for approval if existing trees or vegetation need to be removed for your decking project.
Our team can help assess your property and provide advice on any steps that need to be taken before moving forward with construction work. We will also consider important factors such as water mains, power lines, and storm drains to ensure nothing is disrupted during the building process.
Can you install decking over an existing surface
Decking can be installed over an existing surface, provided that the surface is level and in good condition. Any moisture, rot, or damage to an existing surface must be fixed before proceeding with any construction.
Hardwood deck boards should not be installed closer than 350 mm (35 centimetres) close to the existing surface. You also need to ensure there is adequate ventilation under the deck to prevent moisture buildup.
Composite boards on the other hand,can installed up to 35 mms from the existing surface.
What can I add to my deck that will make it more functional?
There is a wide range of options we can add to your deck for you. Planter boxes are very good for extra screening and privacy. Plants will also soften the look of large deck areas. Privacy screens will give your deck a more intimate and cosy feeling. Built-in seating and storage will increase the usability of your deck. If you like to entertain you can incorporate a built-in barbecue or pizza oven. Deck lights will add that something extra to your deck that will make it sparkle. Contact us for more ideas.
Why Choose UrbanArch Building?
Quality You Can Trust
Our team of experienced deck builders use only top-quality materials — never second-hand or auction-sourced.
Experienced Deck Builders
We bring years of expertise to every project, and we make sure that your deck is installed correctly, safely, and with precision from start to finish.
Attention to Detail
We believe in doing the job right — no shortcuts. Our team makes sure that every detail, from the layout, to the finishing touches, to the overall look, is attended to with care and precision.
Custom Design to Suit Your Space
Your deck should be as unique as your home. If you’re after something a little different or want to explore creative ideas, we’re here to help bring your vision to life.
Responsive and Hassle-free Service
Communication is key, and we make it easy. We respond quickly to any questions or concerns you have and keep you informed at every stage of your project.
Family-owned and Customer-focused
We genuinely care about our clients and take pride in providing exceptional customer service. We want to make sure you’re completely satisfied with your Spotted Gum decking.
On-time and Within Budget
From the initial consultation to the final touches, we will give you a clear schedule outlining the project timeline. We work diligently to stay on track and within the agreed budget.
Benefits Of Choosing UrbanArch Building
20 Years Of Experience
10 Year Warranty
Family Owned & Operated
Personalized Services
Excellent Local Reputation
Exquisite Decking Products
Fast and FREE Consultation
On-Time, Within-Budget Project Completion
Competitive Pricing
Client Reviews
Our Trading Partners
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