I Joist
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Ark Building Supplies E13 H2 Treated LVL Beam – 300 x 45mm x 3.0m
A 3m length of 300 x 45mm E13 H2 treated LVL beam for internal, above-ground structural use. Delivers high stiffness, straightness, and uniformity for lintels, beams, and joists. H2 treatment provides termite resistance in protected interior environments. Easy to cut and fix with standard tools and compatible fasteners. Follow design specifications for spans and loads. Not suited to exterior exposure. A dependable, engineered solution for consistent, efficient construction.
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Advanced Timber & Hardware E13 H2 Treated LVL – 300 x 45mm x 3m
A 3m length of 300 x 45mm E13 H2 treated LVL beam for internal, above-ground structural use. Delivers high stiffness, straightness, and uniformity for lintels, beams, and joists. H2 treatment provides termite resistance in protected interior environments. Easy to cut and fix with standard tools and compatible fasteners. Follow design specifications for spans and loads. Not suited to exterior exposure. A dependable, engineered solution for consistent, efficient construction.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 3.0m
An engineered 300 x 45mm I-joist in a 3m length for lightweight, high-performance floor and roof systems. Offers excellent straightness and dimensional stability for rapid installation and reduced squeaks. Compatible with standard joist hangers and connectors. Provides predictable strength for efficient spans while easing handling on site. Cut and fix per manufacturer and engineering guidelines. Ideal for residential and light commercial projects requiring consistent, engineered timber solutions.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 3.6m
This 3.6m length 300 x 45mm engineered I-joist delivers straight, stable performance for floor and roof framing. Lightweight yet strong, it simplifies handling and speeds installation. Works with commonly available hangers and connectors for secure support. Provides uniform strength and stiffness for predictable spans. Cut and fix to specification, following engineering requirements. A reliable choice for builders seeking consistent, efficient framing components in modern construction.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 4.2m
A 4.2m length of 300 x 45mm engineered I-joist offering excellent straightness and stability for floor and roof systems. Engineered for consistent load performance and long-term reliability. Lightweight construction assists with fast handling and installation. Compatible with standard joist hangers and connectors. Cut and fix according to engineering and manufacturer guidelines. Ideal for residential and light commercial builds requiring predictable, efficient framing solutions.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 4.8m
This 4.8m length of 300 x 45mm engineered I-joist supports longer spans with superior straightness and stability. Designed for efficient floor and roof framing with predictable strength and stiffness. Lightweight for easier handling and rapid installation. Compatible with standard connectors and hangers. Follow engineering and manufacturer instructions for cutting, bearing, and fixing. A dependable, high-performance option for modern residential and light commercial construction.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 5.4m
A 5.4m length of 300 x 45mm engineered I-joist for long, straight spans in floor and roof applications. Provides consistent, engineered strength with excellent dimensional stability to reduce deflection and squeaks. Lightweight for efficient handling and installation. Works with commonly used joist hangers and fixings. Install per engineering and manufacturer guidance. An ideal choice for high-performance framing where reliability and productivity are key.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 6.0m
This 6m length of 300 x 45mm engineered I-joist offers extended spans with reliable stiffness and straightness for floors and roofs. Its lightweight, consistent design speeds installation and supports predictable performance. Compatible with standard hangers and connectors for secure fitment. Cut and fix following engineering and manufacturer recommendations. A robust, efficient framing component for residential and light commercial projects requiring modern engineered timber solutions.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 6.6m
A 6.6m length of 300 x 45mm engineered I-joist designed for long spans in floor and roof systems. Delivers consistent strength, straightness, and stability to minimise on-site rework and improve performance. Lightweight for faster handling and installation. Compatible with standard connection hardware. Follow engineering specifications and manufacturer instructions for cutting and fixing. A reliable choice for efficient, high-performance framing in modern construction.
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Ark Building Supplies Engineered I-Joist – 300 x 45mm x 7.2m
This 7.2m length of 300 x 45mm engineered I-joist provides maximum reach for long-span floor and roof framing while maintaining straightness and stability. Lightweight construction supports rapid installation and consistent performance. Works with commonly available joist hangers and fixings. Cut and install according to engineering and manufacturer guidance. An excellent, high-capacity option for builders seeking efficient, predictable results in large residential and light commercial projects.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 3.0m
This 300 x 63mm engineered I‑joist delivers excellent stiffness‑to‑weight for efficient floor and roof framing. Lightweight yet strong, it installs quickly and provides consistent straightness for quieter, flatter floors when installed correctly. Compatible with common joist hangers and suitable for service penetrations per guidelines. Ideal for residential and light commercial applications. Length: 3.0m. Use approved fasteners and bracing and follow manufacturer and AS/NZS installation requirements for safe, compliant performance.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 3.6m
Engineered for strength with minimal weight, this 300 x 63mm I‑joist streamlines floor and roof construction. The consistent, straight profile aids fast installation and helps deliver flat, quiet floors when installed to guidelines. Compatible with joist hangers and suitable for service holes as specified. Ideal for residential and light commercial framing. Length: 3.6m. Always use approved fixings and bracing and follow manufacturer instructions and AS/NZS standards for compliant, long‑lasting results.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 4.2m
This 300 x 63mm engineered I‑joist offers high stiffness‑to‑weight for efficient spans in floors and roofs. Its lightweight design improves handling, while engineered straightness supports speed and accuracy on site. Compatible with standard joist hangers and service penetration guidelines. Ideal for residential and light commercial floor systems. Length: 4.2m. Install with approved fasteners and bracing and comply with manufacturer instructions and AS/NZS requirements for dependable performance.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 4.8m
Delivering reliable strength with easy handling, this 300 x 63mm engineered I‑joist is ideal for floor and roof framing. The straight, dimensionally stable profile aids flat finishes and efficient installation. Designed to suit common joist hangers and service hole practices. Suitable for residential and light commercial builds. Length: 4.8m. Use approved connectors and follow manufacturer and AS/NZS installation standards to ensure compliant, long‑term structural performance.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 5.4m
This 300 x 63mm engineered I‑joist provides excellent stiffness‑to‑weight for longer spans in floor and roof applications. Lightweight yet strong construction supports fast installation and consistent straightness. Compatible with standard hanger systems and service penetration guidance. Ideal for residential and light commercial use. Length: 5.4m. Always use approved fasteners and bracing and install to manufacturer instructions and AS/NZS standards for safe, compliant performance over the life of the structure.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 6.0m
Optimised for strength and ease of handling, this 300 x 63mm engineered I‑joist suits long floor and roof spans. The straight, stable profile supports accurate, efficient installation and flat finishes. Compatible with joist hangers and service hole practices as specified. Ideal for residential and light commercial framing. Length: 6.0m. Use approved fixings and bracing and follow manufacturer guidance and AS/NZS requirements for compliant, durable performance on site.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 6.6m
This 300 x 63mm engineered I‑joist delivers high stiffness with low weight for efficient long spans in floors and roofs. The straight, dimensionally stable member aids quick installation and consistent results. Compatible with common hanger systems and service penetration guidelines. Suited to residential and light commercial builds. Length: 6.6m. Install with approved fasteners and bracing and comply with manufacturer instructions and AS/NZS standards for reliable structural performance.
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Ark Building Supplies Engineered I-Joist – 300 x 63mm x 7.2m
Engineered for long spans and efficient handling, this 300 x 63mm I‑joist is ideal for floors and roofs. Lightweight construction supports faster installation while maintaining straightness and stability for flat, quiet floors when installed correctly. Compatible with standard joist hangers and service hole practices. Length: 7.2m. Use approved fixings and bracing and follow manufacturer guidance and AS/NZS requirements to ensure compliant, long‑term performance in residential and light commercial projects.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 3.0m
This 300 x 90mm engineered I‑joist offers increased capacity with excellent stiffness‑to‑weight for floors and roofs. Lightweight construction improves handling and installation speed, while straightness supports flat, quiet floors when installed correctly. Compatible with standard joist hangers and service penetration guidelines. Suited to residential and light commercial applications. Length: 3.0m. Use approved fixings and bracing and follow manufacturer guidance and AS/NZS standards for compliant, durable structural performance.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 3.6m
Engineered for strength and efficiency, this 300 x 90mm I‑joist delivers high capacity with low weight for floor and roof systems. The straight, stable member aids rapid installation and flat finishes. Compatible with common hanger systems and service hole guidance. Ideal for residential and light commercial framing. Length: 3.6m. Install with approved fasteners and bracing and comply with manufacturer instructions and AS/NZS standards for safe, long‑term performance.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 4.2m
This 300 x 90mm engineered I‑joist provides excellent stiffness and capacity for longer spans in floors and roofs. Lightweight design reduces handling effort, while dimensional stability supports fast, accurate installation. Compatible with joist hangers and service penetration guidelines. Suitable for residential and light commercial builds. Length: 4.2m. Use approved fixings and bracing and follow manufacturer and AS/NZS requirements for dependable structural performance across the project’s life.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 4.8m
Delivering strong, efficient spans, this 300 x 90mm engineered I‑joist is designed for floors and roofs where higher capacity is needed. Lightweight yet stable construction aids fast installation and consistent straightness. Compatible with standard hanger systems and service hole guidance. Ideal for residential and light commercial applications. Length: 4.8m. Install using approved connectors and bracing and follow manufacturer and AS/NZS standards for compliant, long‑lasting performance.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 5.4m
This 300 x 90mm engineered I‑joist offers high capacity with excellent stiffness‑to‑weight for extended spans in floor and roof systems. Lightweight construction improves handling, while a straight, stable profile supports fast, accurate installation. Compatible with joist hangers and service penetration guidelines. Length: 5.4m. Use approved fasteners and bracing and follow manufacturer instructions and AS/NZS standards to ensure compliant, durable performance in residential and light commercial projects.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 6.0m
Optimised for long spans and efficient handling, this 300 x 90mm engineered I‑joist provides high capacity for floors and roofs. The straight, dimensionally stable member supports rapid installation and flat finishes. Compatible with common hanger systems and service hole practices. Length: 6.0m. Install with approved fixings and bracing and comply with manufacturer and AS/NZS requirements for safe, long‑term structural performance in residential and light commercial builds.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 6.6m
This 300 x 90mm engineered I‑joist delivers high capacity and excellent stiffness‑to‑weight for extended floor and roof spans. Lightweight construction aids easy handling, while engineered straightness supports fast, accurate installation. Compatible with joist hangers and service penetration guidelines. Length: 6.6m. Use approved connectors and bracing and follow manufacturer guidance and AS/NZS standards for compliant performance in residential and light commercial applications.
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Ark Building Supplies Engineered I-Joist – 300 x 90mm x 7.2m
Designed for long spans, this 300 x 90mm engineered I‑joist combines high capacity with low weight for efficient floor and roof framing. The straight, stable profile helps deliver flat, quiet floors when installed correctly and speeds installation. Compatible with standard hanger systems and service hole guidelines. Length: 7.2m. Install with approved fasteners and bracing and follow manufacturer and AS/NZS requirements for safe, durable performance in service.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 3.0m
Engineered timber I-joist, 240 x 45mm x 3.0m, designed for lightweight floor and roof systems. High stiffness, straightness and dimensional stability enable longer spans with reduced deflection and fewer squeaks. Quick to handle and install, ideal for residential and light commercial builds. Use with compatible hangers and connectors for optimal performance.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 3.6m
240 x 45mm x 3.6m engineered timber I-joist for efficient floor and roof framing. Offers excellent stiffness-to-weight ratio, straightness and predictable performance. Enables long spans and faster installation with fewer callbacks. Use with face-mount joist hangers and approved connectors. Suitable for residential floors and roof structures.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 4.2m
Engineered I-joist, 240 x 45mm x 4.2m, for strong, lightweight floor and roof systems. Delivers consistent straightness, reduced shrinkage and minimal squeaks. Ideal for residential spans with quick installation using compatible hangers and fixings. Provides predictable structural performance and easier services routing.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 4.8m
240 x 45mm x 4.8m engineered timber I-joist for efficient floor and roof framing. High stiffness and straightness support long spans with reduced deflection. Lightweight for faster handling and installation. Use with matched joist hangers and connectors for secure support. Suitable for residential and light commercial applications.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 5.4m
Engineered I-joist, 240 x 45mm x 5.4m, offering long-span capability and consistent performance for floors and roofs. Straight, stable and lightweight to speed installation with fewer callbacks. Works with compatible face-mount hangers and fixings. Ideal for residential and light commercial framing where efficiency matters.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 6.0m
Long 6.0m 240 x 45mm engineered timber I-joist for extended spans and fewer joints. Provides high stiffness, straightness and dimensional stability for quiet, solid floors and roofs. Lightweight for rapid handling and installation. Use with compatible joist hangers and connectors. Suitable for residential and light commercial structures.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 6.6m
Engineered timber I-joist, 240 x 45mm x 6.6m, tailored for long spans with consistent performance. Straight and stable to reduce floor bounce and squeaks. Lightweight, easy to install and compatible with face-mount hangers and approved fixings. Ideal for residential floors and roof framing where efficiency and speed are required.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 45mm x 7.2m
Extra-long 7.2m 240 x 45mm engineered timber I-joist for expansive spans and fewer joints. High stiffness and straightness enable quiet, solid floors and smooth roof lines. Lightweight construction speeds handling and installation. Use with compatible hangers and fixings for secure connections. Suitable for residential and light commercial projects.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 3.0m
Engineered timber I-joist, 240 x 63mm x 3.0m, designed for robust floor and roof systems. The wider 63mm flange improves bearing and fixing performance. High stiffness and straightness support long spans with minimal deflection. Lightweight for quick handling and installation using compatible joist hangers and connectors. Ideal for residential and light commercial projects.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 3.6m
240 x 63mm x 3.6m engineered I-joist for efficient, lightweight floor and roof framing. Wider flange enhances connection capacity and stability. Straight, dimensionally stable and quick to install. Use with compatible face-mount hangers and approved fixings. Delivers predictable structural performance and reduced squeaks.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 4.2m
Engineered I-joist, 240 x 63mm x 4.2m, offering high stiffness-to-weight ratio for floors and roofs. Straight and stable for long spans and rapid installation. Wider flange supports improved bearing and fastener performance. Use with compatible hangers and connectors for secure support. Suits residential and light commercial framing.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 4.8m
240 x 63mm x 4.8m engineered timber I-joist for strong, lightweight floor and roof systems. Provides excellent straightness and long-span capability with reduced deflection. Wider flange improves connection strength. Fast to handle and install with compatible hangers and fixings. Ideal for residential builds.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 5.4m
Engineered I-joist, 240 x 63mm x 5.4m, for efficient floor and roof framing with fewer joints. Straight, stable and light to handle, supporting long spans and consistent performance. Use with face-mount hangers and approved connectors for reliable support. Suits residential and light commercial applications.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 6.0m
Long 6.0m 240 x 63mm engineered timber I-joist for expansive spans and faster installs. High stiffness, straightness and dimensional stability reduce floor bounce and squeaks. The wider flange improves bearing and fixing performance. Use with compatible hangers and fixings. Ideal for residential and light commercial framing.
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Ark Building Supplies Engineered Timber I-Joist Lightweight Floor/Roof Joist – 240 x 63mm x 6.6m
Engineered timber I-joist, 240 x 63mm x 6.6m, tailored for long spans with predictable performance. Straight, stable and lightweight to speed installation. Wider flange enhances connection and bearing capacity. Use with compatible face-mount hangers and fixings. Suitable for residential floors and roof framing.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 200 x 45mm x 7.2m (H2S Treated) MeyJOIST
meyJOIST H2S engineered timber I-joists offer the strength-to-weight benefits builders rely on. This 200 x 45mm, 7.2m member includes H2S termite protection for internal, above-ground use and provides dependable stiffness for floors and roof framing. The straight, stable section is easy to cut and fix with standard tools and accessories. Achieve longer spans, less bounce and fewer mid-supports, simplifying layouts and services. Ideal for residential and light commercial applications demanding consistent quality and efficient installation.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 240 x 45mm x 3.0m (H2S Treated) MeyJOIST
With greater depth for added stiffness, meyJOIST H2S I-joists streamline framing. This 240 x 45mm, 3.0m length is H2S termite-protected for internal, above-ground applications and delivers reliable performance in floors and roofs. Lightweight, straight and easy to handle, it cuts and fixes using standard carpentry tools and common hangers. Achieve improved spans and reduced deflection while maintaining fast installation. Ideal for residential and light commercial flooring, rafters and trimmers where accuracy and consistency are essential.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 240 x 45mm x 3.3m (H2S Treated) MeyJOIST
meyJOIST H2S engineered timber I-joists provide stiffness, straightness and speed on site. This 240 x 45mm, 3.3m member is H2S termite-protected for internal, above-ground use and enhances floor and roof performance. The light, stable section is easy to cut, drill and fix with standard tools and common brackets. Achieve improved spans with reduced bounce and fewer mid-supports. Excellent for residential and light commercial projects, helping deliver clean service runs, predictable deflection and reliable results with efficient installation.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 240 x 45mm x 3.6m (H2S Treated) MeyJOIST
Engineered for performance, meyJOIST H2S I-joists deliver strength with low weight. This 240 x 45mm, 3.6m joist is termite-protected (H2S) for internal, above-ground use and provides dependable stiffness for floors and roof framing. Straight and dimensionally stable, it installs quickly with standard tools and widely available hangers. Expect improved spans, reduced deflection and clean service penetrations. Ideal for residential and light commercial builds requiring consistency, speed and high-quality framing components.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 240 x 45mm x 3.9m (H2S Treated) MeyJOIST
meyJOIST H2S engineered timber I-joists combine stiffness, straightness and ease of handling. This 240 x 45mm, 3.9m member features H2S termite protection for internal, above-ground applications and elevates floor and roof performance. Lightweight and stable, it cuts and fixes with standard tools and common connectors, streamlining installation. Achieve longer spans with fewer supports and reduced bounce while simplifying service runs. Suitable for residential and light commercial framing where predictable results and fast progress are essential.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 240 x 45mm x 4.2m (H2S Treated) MeyJOIST
Built for efficiency, meyJOIST H2S I-joists offer high stiffness-to-weight for rapid framing. This 240 x 45mm, 4.2m length is H2S termite-protected for internal, above-ground use and delivers consistent performance in floors and roofs. Factory-straight and dimensionally stable, it is easy to cut, drill and fix with standard hardware. Achieve improved spans, reduced deflection and fewer mid-supports. Ideal for residential and light commercial projects requiring accurate, clean and dependable structural members.
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Swadlings Timber & Hardware Engineered Timber I-Joist – 240 x 45mm x 4.5m (H2S Treated) MeyJOIST
meyJOIST H2S engineered timber I-joists deliver reliable stiffness with low weight to speed installation. This 240 x 45mm, 4.5m joist is H2S termite-protected for internal, above-ground use and performs in floors and roof framing. Straight and stable, it cuts and fixes easily with standard tools and common brackets. Achieve better spans, lower bounce and fewer supports to simplify layouts and services. A proven choice for residential and light commercial builds where quality and consistency are critical.
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