Driveway, Outdoor & External Grates & Drains

36 products

    Take control of stormwater and overland flows. Our extensive range of grates and drains includes various options for external use. Find backyard drainage solutions that work–linear drains in both Heelguard and traditional line patterns for driveway grate drains alongside outdoor slot drains and square floor wastes for larger volumes of water.

    Proudly made in Australia and compliant with all Australian Standards, our outdoor drainage grates feature marine-grade 316 stainless steel or hot dip galvanised steel to ensure durability. Each of our external grate and drains are available with a range of drainage accessories (sold separately), including end caps, outlets and filters to suit your chosen product. 

    We offer free quoting for domestic housing projects, competitive lead times, and complete packages to service the entire Sydney metropolitan area, as well as Wollongong, Newcastle, and Canberra, with an expert crew of site welders for onsite welding and rectification where required.

    Quickly joined with bolts supplied on either end or fasteners purchased from Steel Builders, with next-day dispatch across the Sydney metropolitan area, you’ll have your grates and drains at your doorstep in no time. And if you live or work nearby, select FREE pick-up from our St Mary’s or Belmore warehouse for structural steel supplies within 24 hours. 

    Steel Builders also stocks a range of Stormwater Products to ensure you avoid flooding, improve lawn drainage and prevent overland flows from ruining all your hard work. As for showers and bathrooms, check out our selection of internal grates and drains, including more affordable plastic options with minimal visual impact and a sleek finish.

    If you need help selecting the right product, with a few short questions, the Steel Builders’ grate and drain configurator can help you find something from our range that best suits your requirements. Need custom fabrications? Call us and get a quote for your next project today!

    36 products
    External Stainless Steel Grate - Heelguard Pattern - 200mm x 170mm (Class A and B) - Steel Builders
    Heelguard Stainless Steel Driveway Drain & Grate - Class B
    from $1,155.00
    Galvanised External Box Grate & Channel - Heelguard Pattern - 300mm x 170mm - Steel Builders
    Heelguard Box Drain & Grate - 300 x 170mm (Galvanised)
    from $708.00
    Galvanised External Box Grate & Channel - Heelguard Pattern - 200mm x 170mm - Steel Builders
    Heelguard Box Drain & Grate - 200 x 170mm (Galvanised)
    from $574.00
    Heelguard Stainless Steel Drain & Grate - 85 x 20mm
    $550.00
    Galvanised External Box Grate & Frame - Heelguard Pattern - Steel Builders
    Heelguard Grate & Frame (Galvanised)
    from $518.00
    Galvanised External Box Grate & Channel - MAXI Heelguard Pattern - 200mm x 170mm - Steel Builders
    Maxi Heelguard Box Drain & Grate - 200 x 170mm
    from $514.00
    Galvanised External Box Grate & Channel - Traditional Pattern - 300mm x 170mm - Steel Builders
    Galvanised External Box Grate & Channel - Traditional Pattern - 300mm x 170mm - Steel Builders
    Traditional Box Drain & Grate - 300 x 170mm (Galvanised)
    from $502.00
    Heelguard Stainless Steel Driveway Drain & Grate - 140 x 125mm
    from $440.00
    Stainless Steel External Box Grate & Channel - Heelguard Pattern - 140mm x 125mm - Steel Builders
    Stainless Steel External Box Grate & Channel - Heelguard Pattern - 140mm x 125mm - Steel Builders
    Heelguard Box Drain & Grate - 140 x 125mm (Stainless Steel)
    from $440.00
    Galvanised External Box Grate & Channel - Traditional Pattern - 200mm x 170mm - Steel Builders
    Galvanised External Box Grate & Channel - Traditional Pattern - 200mm x 170mm - Steel Builders
    Traditional Box Drain & Grate - 200 x 170mm (Galvanised)
    from $428.00
    Galvanised Pit Grate and Frame - Including Floorplate - Steel Builders
    Stormwater Pit Grate & Frame + Floorplate
    from $352.00
    External Stainless Steel Grate - Heelguard Pattern - 110mm x 60mm - Steel Builders
    External Stainless Steel Grate - Heelguard Pattern - 110mm x 60mm - Steel Builders
    Heelguard Stainless Steel Drain & Grate - 110 x 60mm
    from $330.00
    External Stainless Steel Grate - Heelguard Pattern - 85mm x 40mm - Steel Builders
    External Stainless Steel Grate - Heelguard Pattern - 85mm x 40mm - Steel Builders
    Heelguard Stainless Steel Drain & Grate - 85 x 40mm
    from $302.50
    External Stainless Steel Grate - Lines Pattern - Steel Builders
    External Stainless Steel Grate - Lines Pattern - Steel Builders
    Linear Pattern Stainless Steel Drain & Grate - 85 x 20mm
    $302.50
    Stainless Steel Pit Grate and Frame - Heelguard Pattern - Steel Builders
    Heelguard Stormwater Pit Grate & Frame (Stainless Steel)
    from $279.07
    Galvanised External Box Grate & Channel - Heelguard Pattern - 150mm x 125mm - Steel Builders
    Heelguard Box Drain & Grate - 150 x 125mm (Galvanised)
    from $259.00
    External Aluminium Base & Stainless Steel Top Drain - Heelguard Pattern - Steel Builders
    External Aluminium Base & Stainless Steel Top Drain - Heelguard Pattern - Steel Builders
    Heelguard Aluminium Strip Drain + Stainless Steel Grate
    from $244.20
    Galvanised External Box Grate & Channel - MAXI Heelguard Pattern - 150mm x 125mm - Steel Builders
    Maxi Heelguard Box Drain & Grate - 150 x 125mm (Galvanised)
    from $228.00
    Galvanised Pit Grate and Frame - Paving Tile Insert - Steel Builders
    Tile Insert Stormwater Pit Grate & Frame (Galvanised)
    from $226.00
    Galvanised External Box Grate & Frame - Traditional Pattern - Steel Builders
    Traditional Trench Grate & Frame - Galvanised
    from $222.00
    Sold Out
    External Aluminium Drain - Tile Insert - Steel Builders
    External Aluminium Drain - Tile Insert - Steel Builders
    Tile Insert Aluminium Grate & Strip Drain - 85 x 40mm
    from $208.00
    Stainless Steel Pit Grate and Frame - Paving Tile Insert - Steel Builders
    Tile Insert Stormwater Pit Grate & Frame (Stainless Steel)
    from $207.90
    Sold Out
    External Aluminium Drain - Tile Insert - Steel Builders
    External Aluminium Drain - Tile Insert - Steel Builders
    Tile Insert Aluminium Grate & Strip Drain - 85 x 25mm
    from $191.00
    External Stainless Steel Grate - Lines Pattern - Steel Builders
    External Stainless Steel Grate - Lines Pattern - Steel Builders
    Linear Pattern Stainless Steel Drain & Grate - 85 x 40mm
    from $187.70
    Galvanised Pit Grate and Frame - Heelguard Pattern - Steel Builders
    Heelguard Stormwater Pit Grate & Frame (Galvanised)
    from $182.00
    External Stainless Steel Grate - Slot Pattern - Steel Builders
    Slot Stainless Steel Drain & Grate
    from $176.00
    External Stainless Steel Grate Only - Heelguard Pattern (Grate Only) - Steel Builders
    External Stainless Steel Grate Only - Heelguard Pattern (Grate Only) - Steel Builders
    Heelguard Grate Only (Stainless Steel) - Steel Builders
    from $165.00
    Galvanised External Box Grate & Channel - Traditional Pattern - 150mm x 125mm - Steel Builders
    Galvanised External Box Grate & Channel - Traditional Pattern - 150mm x 125mm - Steel Builders
    Traditional Box Drain & Grate - 150 x 125mm (Galvanised)
    from $157.00
    Galvanised External Box Grate (Grate Only) - Heelguard Pattern - Steel Builders
    Galvanised Heelguard Grate - 1000mm
    from $150.00
    Sold Out
    External Aluminium Drain - Lines Pattern - Steel Builders
    External Aluminium Drain - Lines Pattern - Steel Builders
    Slotted Pattern Aluminium Grate & Strip Drain - 115 x 80mm
    from $143.00
    Galvanised External Box Grate & Channel - Traditional Pattern - 125mm x 80mm - Steel Builders
    Galvanised External Box Grate & Channel - Traditional Pattern - 125mm x 80mm - Steel Builders
    Traditional Box Drain & Grate - 125 x 80mm (Galvanised)
    from $128.00
    External Aluminium Drain - Lines Pattern - Steel Builders
    External Aluminium Drain - Lines Pattern - Steel Builders
    Slotted Pattern Aluminium Grate & Strip Drain - 85 x 40mm
    from $121.00
    External Aluminium Drain - Lines Pattern - Steel Builders
    External Aluminium Drain - Lines Pattern - Steel Builders
    Slotted Pattern Aluminium Grate & Strip Drain - 85 x 25mm
    from $99.00
    Galvanised Pit Grate and Frame - Traditional Pattern - Steel Builders
    Traditional Stormwater Pit Grate & Frame (Galvanised)
    from $94.00
    Galvanised External Box Grate (Grate Only) - Traditional Pattern - Steel Builders
    Galvanised Traditional Grate
    from $93.00
    Galvanised External Box Grate & Channel - Heelguard Pattern - 125mm x 80mm - Steel Builders
    Heelguard Box Drain & Grate - 125 x 80mm (Galvanised)
    $0.00