Our Products in Port Stephens NSW

Flooring — GRT Building Supplies in Port Stephens, NSW

Your One-stop Shop

At GRT Building Supplies, we’re proud to be Port Stephens onestop shop for high quality building supplies and materials. Based in Salamander Bay, we service engineers, architects, and builders from across Newcastle and the Central Coast. Our products are sourced from the most reputable brands in the market, to ensure superior durability and quality.  

All products can be delivered to you for your convenience, with special discounts available for large commercial projects. Get in touch with our friendly team today to request a quote!  

Engineered System — GRT Building Supplies in Port Stephens, NSW

Engineered Systems

Choose from SmartFrame or hySPAN for high quality floor and roof systems. Residential and commercial options available, with all models built to your specifications.

Roofing Supplies

Beautiful and durable roofing products from Colorbond, Lysaght and Stramit. Get strong and secure roofing that’s tested to endure Australian weather conditions. Facias & gutters also available.

Cladding — GRT Building Supplies in Port Stephens, NSW


Weatherproof your building with cladding materials from Weathertex, Design Pine, Scyon Walls + Floors, Tilling, Hurford Wholesale and Britton Timbers. Make your property stands out from the crowd!


Our expert team can provide you with reliable and professional advice on the best sheet products for your project. All products are sourced from Australian brands such as Forest One and Easycraft.

Plasterboard — GRT Building Supplies in Port Stephens, NSW


We have a wide range of ceiling and wall plasterboards from CSR, one of Australia’s leading suppliers. All products can be delivered to you onsite, contact us today for more information.

Decking — GRT Building Supplies in Port Stephens, NSW

Decking (Composite)

Composite timber mimics the look and feel of natural wood without the maintenance. Specifically engineered to be stain and fade resistance, choose from a variety of sizes, colours and finishes.


Decking (Timber)

We have timber decking material from brands such as Hurford and Boral. Create a gorgeous deck from Australian hardwoods such as spotted gum and merbau, as well as a range of treated softwoods.

Flooring — GRT Building Supplies in Port Stephens, NSW

Flooring (Timber)

Elevate any space by installing stunning and durable timber flooring. Choose from a wide range of hard and soft wood, with various coatings and finishes available.

Flooring Measuring — GRT Building Supplies in Port Stephens, NSW

Flooring (Engineered & Vinyl)

Get the appearance of natural timber without the price. Choose from a selection of engineered hardwood that offers superior longevity and versatility. Suitable for classic and modern interiors.

Door — GRT Building Supplies in Port Stephens, NSW


Choose the perfect doors to finish off any construction or renovation. We have a wide range of entrance, interior and wardrobe doors to complement any interior design.

Door Moulds & Jambs

Door moulds and jambs are a vital component to a room’s structural integrity. Our team can help you choose the ideal style, and custom manufacture them in a material of your choice.

Door Furniture & Hardware

Superior doors, handles, knobs, locks and other hardware from trusted brands such as Zanda and Scope Distributors. Equip your property with top-of-the-line products.

Fibre Cement Supplies

We’re a proud supplier of CRS and James Hardie products and accessories. All our fibre cement systems are stylish, versatile, durable, low maintenance and easy to install.

Water Proofing — GRT Building Supplies in Port Stephens, NSW

Waterproofing Supplies

Renovating the bathroom? You’ll need quality waterproofing membranes, joint bands, sealants, primers and additives. Find everything you need at affordable prices with GRT Building Supplies!

Insulation — GRT Building Supplies in Port Stephens, NSW


Reduce your property’s energy costs with quality insulation. Keep your house cool in summer and warm in winter with our range of Bradford insulation materials.

Electric Screwdriver, Screws and Floor Plans — GRT Building Supplies in Port Stephens, NSW


No fixture is forgotten at GRT Building Supplies. Find a variety of washers, screws, anchors, rivets, nails and more at our store. Our specialised staff members are more than happy to help!


We have a large selection of quality adhesive products for a variety of applications. All our adhesive products are suitable for industrial and commercial projects.