Blacktown Building Supplies
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Blacktown Building Supplies Insulation Batts Bradford Gold Wall Batts for Steel Frames
Bradford Gold Wall Batts for Steel Frames are engineered to suit steel-framed construction, delivering reliable thermal and acoustic performance. Pre-cut for typical steel stud spacings, they install quickly with a snug friction fit to reduce gaps and thermal bridging. The durable glasswool composition is non-combustible, low itch, and maintains loft for long-term effectiveness. Ideal for external and internal walls, these batts help moderate indoor temperatures, lower energy use, and reduce noise transfer. A practical choice for residential projects using steel framing systems.
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Blacktown Building Supplies Iron Bark Post 90 X 90 F17 Hardwood Solid Timber - 2.7m
This 90 x 90mm Ironbark F17 solid hardwood post in 2.7m length delivers exceptional strength and durability for exposed structural applications. Ironbark is renowned for its hardness and stability, making it ideal for decks, verandahs, pergolas and fencing. Straight, dense and long wearing, it holds fixings securely and stands up to harsh weather. A dependable choice where structural capacity and long-term performance are paramount.
$256.50
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Blacktown Building Supplies Iron Bark Post 90 X 90 F17 Hardwood Solid Timber - 3.0m
A 90 x 90mm Ironbark F17 solid hardwood post in 3.0m length for robust, long-lasting structural framing outdoors. Ironbark’s natural density and stability provide excellent resistance to wear and weather, with strong screw and bolt holding. Ideal for decks, pergolas, verandahs and feature posts, it offers reliable performance and a classic Australian hardwood look. Choose where strength, aesthetics and service life are essential.
$285.00
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Blacktown Building Supplies Iron Bark Post 90 X 90 F17 Hardwood Solid Timber - 3.6m
This 3.6m 90 x 90mm Ironbark F17 post delivers high structural capacity and outstanding durability for demanding outdoor builds. Suited to tall pergolas, verandahs, decks and feature structures, it provides excellent stiffness, fastener holding and long-term stability. The dense hardwood withstands heavy use and exposure, offering a premium finish that weathers attractively or coats well. A proven solution where extended lengths and reliable performance are required.
$342.00
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Blacktown Building Supplies James Hardie 300660 HardieBlade 184mm Diamond Tip Circular Saw Blade
A 184mm James Hardie HardieBlade engineered with diamond‑tipped segments for clean, fast cutting of fibre cement products. Designed to reduce dust and deliver smooth edges, it improves cut accuracy and blade life compared to conventional teeth. Ideal for site or workshop use when sizing cladding and lining boards. Fits compatible circular saws and supports efficient, professional results on James Hardie fibre cement materials.
$167.85
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Blacktown Building Supplies James Hardie 301197 Scyon Linea 180mm 90 Deg Aluminium S/S External Corner Soaker
An external corner soaker for 180mm Scyon Linea boards, providing a crisp 90° corner detail and improved weather management. The aluminium/stainless steel construction offers durability and corrosion resistance in exposed locations. Designed for a consistent, professional appearance, it speeds installation and reduces onsite fabrication. Ideal for new builds and renovations seeking a neat, low‑maintenance external corner solution on Linea cladding systems.
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Blacktown Building Supplies James Hardie 302821 Scyon Linea 150mm 90 Deg Aluminium S/S External Corner Soaker
Purpose‑made 90° external corner soaker for 150mm Scyon Linea weatherboards. The aluminium/stainless steel design delivers durable, corrosion‑resistant performance and a sharp, consistent corner profile. Speeds cladding installation and helps control moisture at critical junctions. Ideal for achieving a clean, architectural finish on Linea façades in residential projects where precision and weatherability are paramount.
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Blacktown Building Supplies James Hardie 303375 HardieBlade 254mm Diamond Tip Circular Saw Blade
A 254mm James Hardie HardieBlade with diamond‑tipped segments for precise cutting of fibre cement cladding and linings. Optimised for reduced dust and longer blade life, it produces smooth edges that minimise finishing work. Suitable for site and workshop use, the blade helps maintain productivity and accuracy when sizing panels, delivering reliable performance on James Hardie fibre cement products.
$285.65
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Blacktown Building Supplies James Hardie 304491 Base Coat 15kg
A 15kg base coat compound designed for jointing James Hardie fibre cement sheets. Suitable for bedding and undercoat applications over recessed joints, fasteners and accessories, it builds a stable foundation for subsequent finishing coats. Formulated for smooth application and dependable adhesion, it helps deliver flat, consistent joints that sand and finish cleanly. Ideal for residential interiors, façades and eaves systems using approved Hardie jointing methods.
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Blacktown Building Supplies James Hardie 304493 Top Coat 15kg
A 15kg top coat compound formulated to finish fibre cement joints over a prepared base coat. It levels and smooths recessed joints and fastener areas for a uniform surface ready for painting. Easy to apply and sand, it helps achieve a fine finish across interior linings and external soffits when used within the James Hardie jointing system. Suitable for residential renovations and new construction.
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Blacktown Building Supplies James Hardie 304560 50mm Wide Foam Back Sealing Tape 25m
A 50mm wide, 25m foam‑back sealing tape for use behind flashings, joints and trims on fibre cement installations. The compressible backing helps create an even seal over irregular surfaces, assisting weatherproofing and reducing rattles. Quick to apply and easy to cut, it improves finish quality at interfaces such as windows, corners and flashing junctions. An essential accessory for neat, durable cladding details.
$136.10
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Blacktown Building Supplies James Hardie 305432 6mm Black Pvc Eaves Jointer 3.0m
A 6mm x 3.0m black PVC eaves jointer designed to connect 6mm soffit or eaves lining sheets with a neat, uniform gap. Durable and easy to cut, it simplifies alignment and helps protect sheet edges for a clean finish. Suitable for residential eaves and soffits, it supports fast installation and consistent results when used with compatible James Hardie lining systems.
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Blacktown Building Supplies James Hardie 305510 Scyon Linea Aluminium Universal Window Adaptor 3700mm
A 3700mm aluminium universal window adaptor engineered for Scyon Linea cladding. It bridges the junction between weatherboards and window frames, creating a tidy, weather‑managed detail. The robust aluminium section is easy to cut and fit, delivering consistent clearances and a professional finish around openings. Ideal for new builds and upgrades seeking clean, durable trim details with Linea profiles.
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Blacktown Building Supplies James Hardie 305511 Scyon Linea Aluminium Internal Corner Mould
An aluminium internal corner mould for Scyon Linea weatherboards, providing a crisp, straight internal corner detail with improved moisture management. It streamlines installation by reducing on‑site fabrication and ensures consistent, repeatable results. Durable and easy to cut to length, it supports a professional façade finish and complements the architectural shadow lines typical of Linea cladding systems.
$107.70
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Blacktown Building Supplies James Hardie 305512 Scyon Linea Aluminium External Slimline Boxed Corner 3600mm
A 3600mm slimline boxed corner in aluminium for Scyon Linea cladding. It creates sharp, modern external corner details while assisting water management at façade edges. The robust section is simple to cut and fix, delivering consistent, architectural lines and reducing on‑site fabrication. Ideal for contemporary residential exteriors where precision and long‑term durability are essential.
$178.00
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Blacktown Building Supplies James Hardie 305513 Aluminium Snap On Corner 3.0m (2 PIECES PER SET)
A 3.0m two‑piece aluminium snap‑on corner that simplifies creating crisp, concealed‑fix corner details. The base section fixes first, with a snap‑on cover for a clean finish and improved weather management. Easy to cut and install, it speeds façade work and delivers consistent lines across external or internal corners. Suitable for use with compatible James Hardie cladding systems in residential projects.
$144.25
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Blacktown Building Supplies James Hardie 305514 HardiePlank 230mm Aluminium External Corner Soaker
An aluminium external corner soaker for 230mm HardiePlank weatherboards, providing robust edge protection and a tidy, consistent corner profile. Designed to manage moisture at façade corners, it reduces onsite fabrication and speeds installation. Easy to cut and fix, it delivers a clean, durable finish ideal for residential weatherboard exteriors seeking both performance and visual consistency.
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Blacktown Building Supplies James Hardie 305515 HardiePlank 300mm Aluminium External Corner Soaker
An aluminium external corner soaker for 300mm HardiePlank profiles, engineered to create clean, weather‑resistant 90° corners. It protects board ends, improves water management and offers a consistent, professional appearance. Quick to trim and install, it supports efficient cladding work and reliable long‑term performance on residential façades clad with 300mm HardiePlank boards.
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Blacktown Building Supplies James Hardie 305516 HardiePlank 230mm Aluminium Internal Corner Soaker
An aluminium internal corner soaker designed for 230mm HardiePlank weatherboards. It provides a neat internal corner junction and assists with moisture management, reducing the need for complex corner fabrication. Easy to cut and install, it ensures consistent lines and speeds installation for a professional finish on residential weatherboard façades.
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Blacktown Building Supplies James Hardie 305517 HardiePlank 300mm Aluminium Internal Corner Soaker
Internal corner soaker in aluminium for 300mm HardiePlank boards, delivering a clean, protected internal junction. It improves water handling at corners and helps achieve consistent, repeatable detailing while saving installation time. Durable and simple to fit, it supports a professional finish on weatherboard façades in renovation and new build projects.
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Blacktown Building Supplies James Hardie 305518 14mm Aluminium Internal Corner 3.0m
A 14mm x 3.0m aluminium internal corner trim for use with compatible cladding systems. It creates straight, uniform internal corners and assists moisture management at junctions. The durable aluminium profile is easy to cut and fix, enabling efficient installation and a tidy, consistent façade finish. Suitable for residential exteriors requiring reliable, low‑maintenance corner details.
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Blacktown Building Supplies James Hardie 305519 14mm Aluminium External Trim Corner 3.0m
A 14mm x 3.0m aluminium external trim corner designed to form crisp, durable 90° outside corners on compatible claddings. It protects exposed board edges and promotes consistent shadow lines for an architectural finish. Quick to cut and install, it supports efficient façade work and reliable weather performance across residential building projects.
$102.60
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Blacktown Building Supplies James Hardie 305520 Scyon Axon 9mm Aluminium Internal Corner 3.0m
A 9mm x 3.0m aluminium internal corner specifically for Scyon Axon 9mm cladding. It delivers a clean, straight internal junction, protects board edges and improves moisture control. The robust aluminium profile is easy to cut and fix, ensuring uniform lines and saving installation time. Ideal for achieving a professional Axon façade finish in new builds and renovations.
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Blacktown Building Supplies James Hardie 305524 HardiePlank Galvanised Stud Clip
A galvanised steel stud clip for HardiePlank installations, assisting secure fixing at joints and providing support where studs are not ideally positioned. Corrosion‑resistant and easy to install, it helps maintain correct board alignment and spacing for a consistent façade. An essential accessory for efficient, professional weatherboard installation on residential projects.
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Blacktown Building Supplies James Hardie 305525 PrimeLine Galvanised Universal Off Stud Joint Clip - Pack 100
A pack of 100 galvanised universal off‑stud joint clips for PrimeLine weatherboards. These clips support joints where no stud is available, ensuring correct board alignment and secure fixing. Corrosion‑resistant steel construction offers durability, while the universal design speeds installation and promotes consistent spacing. Ideal for residential façades requiring reliable, professional off‑stud joint support.
$108.00
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Blacktown Building Supplies James Hardie 305528 HardiePlank Zinclume Footmould 3.0m
A 3.0m Zincalume footmould starter trim for HardiePlank weatherboards, providing a straight, durable base line and improved moisture management at the bottom of façades. The corrosion‑resistant finish suits exposed conditions. Easy to cut and fix, it ensures consistent board alignment and a professional start to cladding runs on residential exteriors.
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Blacktown Building Supplies James Hardie 305534 Joint Sealant 300ml
A 300ml cartridge joint sealant formulated for use with James Hardie fibre cement systems. It provides flexible, paintable sealing at control joints, penetrations and trim interfaces to help manage water ingress and movement. Applied with a standard caulking gun, it tools smoothly for a neat finish. Ideal for residential façades, eaves and internal wet areas using compatible Hardie products.
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Blacktown Building Supplies James Hardie 305536 Top Coat 3kg
A 3kg top coat compound for finishing fibre cement joints over a prepared base coat. The smooth, easy‑sand formula levels recessed joints and fastener areas, producing a uniform surface ready for paint. Ideal for smaller jobs, patching and trims where a large bag is not required. Suitable for internal linings and soffits within the James Hardie jointing system.
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Blacktown Building Supplies James Hardie 305547 Scyon 3000mm Stria Vertical Flashing Stop
A 3000mm vertical flashing stop designed for Scyon Stria cladding. It provides a neat termination at vertical junctions and assists in directing water away from building fabric. The durable profile is easy to cut and install, helping achieve consistent, professional detailing across façades. Ideal for residential projects seeking reliable moisture management and clean, architectural lines with Stria boards.
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Blacktown Building Supplies James Hardie 305548 HardiePlank Smooth Pvc Joiner 230mm
A smooth‑profile 230mm PVC joiner for HardiePlank weatherboards, delivering a clean, unobtrusive joint between boards. It aligns edges, protects cut ends and speeds installation, reducing the need for complex on‑site detailing. Durable and easy to cut, it helps achieve consistent, professional results on residential façades using 230mm smooth HardiePlank boards.
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Blacktown Building Supplies James Hardie 305549 HardiePlank Smooth PVC Joiner 300mm
A smooth‑profile 300mm PVC joiner for HardiePlank weatherboards. It creates a neat, consistent junction between boards, protects cut edges and simplifies installation. Trim to length as required for a professional finish with minimal site fabrication. Ideal for residential façades using 300mm smooth HardiePlank profiles seeking clean, contemporary lines.
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Blacktown Building Supplies James Hardie 305550 HardiePlank 230mm Woodgrain PVC Joiner
A 230mm woodgrain‑profile PVC joiner for HardiePlank weatherboards, matching the timber‑look texture for a seamless joint appearance. It helps align boards, protect ends and speed installation while delivering consistent visual results. Easy to cut and fix, it’s ideal for residential weatherboard cladding with 230mm woodgrain HardiePlank boards.
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Blacktown Building Supplies James Hardie 305551 HardiePlank 300mm Woodgrain PVC Joiner
A 300mm woodgrain‑finish PVC joiner designed for HardiePlank weatherboards. It blends with the board’s timber‑look texture, providing a tidy, durable joint and protecting cut edges. The joiner trims easily and installs quickly for a professional façade finish. Suitable for residential exteriors using 300mm woodgrain HardiePlank profiles.
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Blacktown Building Supplies James Hardie 305552 6mm PVC Flashing Mould 3000mm
A 6mm x 3000mm PVC flashing mould for use with compatible James Hardie cladding and lining systems. It assists in directing water away at critical junctions, providing a clean edge detail around openings and interfaces. Lightweight, easy to cut and simple to install, it supports consistent, durable weatherproofing and a professional finish on residential projects.
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Blacktown Building Supplies James Hardie 305555 Scyon Matrix Pvc Cavity Vent Strip 18 x 3000mm
The James Hardie Scyon Matrix PVC Cavity Vent Strip 18 x 3000mm promotes continuous airflow at the base of cladding cavities, helping manage moisture and improve durability. Sized for Matrix panel systems, it provides effective vermin protection while maintaining drainage. Lightweight PVC is easy to cut and install, resistant to corrosion, and designed for long-term performance. Ideal for ventilated rainscreen facades in residential and commercial applications seeking reliable cavity ventilation.
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Blacktown Building Supplies James Hardie 305556 Exotec® Gasket Snap Strip 3620mm
Designed for the Exotec facade system, the 3620mm James Hardie Exotec Gasket Snap Strip provides a neat, gasketed seal to express joints. It helps manage water ingress while enabling crisp shadow lines and consistent joint spacing. The snap-in design speeds installation and enhances aesthetics across large-format panels. Durable formulation resists UV and weathering for long service life. Use in commercial or residential facades where clean lines and reliable joint performance are essential.
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Blacktown Building Supplies James Hardie 305557 Backing Strip 1190mm
The James Hardie 1190mm Backing Strip is a purpose-made substrate behind panel joints to support sealants and flashings in facade systems. It helps create consistent, weather-resistant joints and improves sealant performance by controlling depth and contact surfaces. Lightweight and simple to position, it enhances installation speed and quality. Ideal for James Hardie cladding systems requiring precise joint backing in both residential and commercial applications.
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Blacktown Building Supplies James Hardie 305558 Backing Strip 2390mm
The James Hardie 2390mm Backing Strip provides continuous support behind express and sealed joints in facade cladding. It helps achieve durable, weather-managed joints by assisting sealant positioning and coverage. Supplied in convenient lengths for fewer joins, it speeds installation and improves finish quality. Compatible with James Hardie panel systems across residential and commercial projects where reliable joint backing and neat detailing are required.
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Blacktown Building Supplies James Hardie 305559 Backing Strip 2990mm
The James Hardie 2990mm Backing Strip supports sealant and flashing at facade panel joints to help control moisture and achieve a uniform finish. Long lengths reduce waste and butt joins, improving efficiency on site. Engineered for compatibility with James Hardie cladding systems, it assists in delivering clean joint lines and long-term performance in residential and commercial projects where detail and weatherability matter.
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Blacktown Building Supplies James Hardie 305564 Colorbond 75 x 75mm Corner Flashing 3.0m
The James Hardie Colorbond 75 x 75 x 3000mm Corner Flashing provides a robust, prefinished solution for external corners. Made from durable Colorbond steel, it resists corrosion and delivers a clean, professional edge detail. Sized for consistent coverage and easy alignment, it enhances weatherproofing and protects vulnerable junctions. Ideal for pairing with James Hardie cladding systems where long-lasting, low-maintenance corner finishing is required.
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Blacktown Building Supplies James Hardie 305565 Facade Washer Box of 1000
James Hardie Facade Washers are designed to distribute screw loads and help protect panel surfaces during installation. Supplied as a box of 1000, they provide consistent, reliable clamping for facade systems, assisting in preventing pull-through and surface damage. Easy to use with compatible fasteners, they contribute to a neat, professional finish. Ideal for high-volume commercial or residential cladding projects requiring efficient and secure panel fixing.
$162.25
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Blacktown Building Supplies James Hardie 305568 HardieTex 7.5mm Pvc Starter Strip 3.0m
The James Hardie HardieTex 7.5mm PVC Starter Strip establishes a straight, durable base line for rendered cladding systems. At 3000mm, it provides fast, consistent setup and helps shed water at the lower edge. Tough PVC resists corrosion and is easy to cut and fix. Use with HardieTex systems to improve alignment, speed installation, and deliver a clean, professional base finish on residential and light commercial facades.
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Blacktown Building Supplies James Hardie 305570 Scyon Linea Pvc Box Corner Z Flashing 2700mm Long
The 2700mm James Hardie Scyon Linea PVC Box Corner Z Flashing creates crisp, weather-resistant external corners on Linea weatherboard facades. It streamlines installation by providing a uniform reference and effective water management at junctions. Lightweight PVC is easy to cut and handle, resists corrosion, and supports long-term performance. Ideal for achieving clean lines and consistent detailing across residential projects using Scyon Linea weatherboards.
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Blacktown Building Supplies James Hardie 305571 Scyon Linea Pvc Starter Strip 3.0m
The James Hardie Scyon Linea PVC Starter Strip sets a straight base for the first course of weatherboards, ensuring consistent alignment and drainage. At 3000mm, it reduces joins and speeds installation. Durable PVC is corrosion-resistant and simple to cut and fix. Use to achieve a neat, reliable starting point and professional finish on Scyon Linea cladding in residential applications.
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Blacktown Building Supplies James Hardie 305572 Scyon Linea 180mm 90 Deg Aluminium External Corner Soaker
The James Hardie Scyon Linea 180mm 90° Aluminium External Corner Soaker provides a robust, ready-made corner detail that protects and finishes weatherboard edges. Precision-formed aluminium delivers crisp lines and long-term corrosion resistance. It helps manage water at external corners and reduces onsite fabrication time. Ideal for consistent, durable corner detailing on residential projects using 180mm Scyon Linea weatherboards.
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Blacktown Building Supplies James Hardie 305574 Scyon Linea 150mm 90 Deg Aluminium External Corner Soaker
The James Hardie Scyon Linea 150mm 90° Aluminium External Corner Soaker creates strong, neat external corners for 150mm Linea weatherboards. Made from corrosion-resistant aluminium, it improves durability and reduces site cutting and flashing complexity. It helps shed water and protects board edges, supporting a tidy, long-lasting finish. Ideal for builders seeking consistent, professional corners on Linea weatherboard installations.
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Blacktown Building Supplies James Hardie 305613 9mm Aluminium Horizontal H Flashing 3.0m
This 3000mm 9mm Aluminium Horizontal H Flashing from James Hardie provides a clean, defined cover for horizontal panel joins. It assists with water management while delivering a crisp aesthetic across facade elements. Lightweight yet durable aluminium resists corrosion and is straightforward to install and align. Suitable for use with compatible 9mm cladding panels in residential and commercial facades requiring reliable horizontal joint flashing.
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Blacktown Building Supplies James Hardie 305614 9mm Aluminium Horizontal H Jointer 100mm 10 Pack
The James Hardie 9mm Aluminium Horizontal H Jointer, supplied as 100mm segments in a pack of 10, provides precise alignment and connection at horizontal panel joints. These compact jointers simplify detailing and help maintain consistent spacing. Made from corrosion-resistant aluminium, they support durable, long-lasting facades. Ideal for installers seeking neat, repeatable joint solutions across cladding systems using 9mm panels.
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