Skip to content

Your Cart

Galvanized Mild Steel - Surcharge Grates

Galvanized Mild Steel - Surcharge Grates — 600x600 Cast In

$1.00

Galvanized Mild Steel - Surcharge Grates — 900x600 Cast In

$1.00

Galvanized Mild Steel - Surcharge Grates — 900x900 Cast In

$1.00

Galvanized Mild Steel - Surcharge Grates — 1000x700 Bolt Down

$1.00

Galvanized Mild Steel - Surcharge Grates — 1000x1000 Bolt Down

$1.00

Galvanized Mild Steel - Surcharge Grates — 1200x1200 Cast In

$1.00

Galvanized Mild Steel Surcharge Grates

Our Galvanized Mild Steel Surcharge Grates are specialized drainage components engineered to relieve pressure and safely redirect excess water during heavy rainfall or stormwater system overloads. Installed over surcharge pits or designated overflow points, they serve as a secondary outlet when the main drainage system reaches capacity.

Constructed from high-strength galvanised steel, these grates provide a durable, corrosion-resistant, and low-maintenance solution for flood-prone or high-volume drainage areas.

Technical Specification

Description Frame (L x W x D mm) Grate (L x W x D mm) Clear Opening (L x W mm)
600x600 Raised Grate/ Frame M/D Cast In 710 x 710 x 55 690 x 690 x 50 600 x 600
900x600 Raised Grate/ Frame M/D Cast In 1010 x 710 x 55 990 x 690 x 50 900 x 600
900x900 Raised Grate/ Frame M/D Cast In 1010 x 1010 x 55 990 x 990 x 50 900 x 900
1000x700 Raised Grate/ Frame M/D Bolt Down 1110 x 810 x 55 1085 x 785 x 50 1000 x 700
1000x1000 Raised Grate/ Frame M/D Bolt Down 1110 x 1110 x 55 1085 x 1085 x 50 1000 x 1000
1200x1200 Raised Grate/ Frame M/D Cast In 1310 x 1310 x 55 2 x 640 x 1290 x 50 1200 x 1200


Key Features

  • Heavy-duty galvanized steel construction
  • Surcharge-Resistant Design
  • Anchored Frame
  • Corrosion Resistance
  • High-Capacity Overflow Protection
  • Grated Design
  • Flush or Raised Edge Profiles
  • Easy Installation & Replacement

Applications

  • Stormwater Overflow Pits
  • Flood-Prone Urban Areas
  • Car Parks & Driveways
  • Industrial & Commercial Estates
  • Council Drainage Systems
  • Basement Entry Points & Loading Docks