Corten Steel Threshold Storm Drainage Channel System A15

The Corten Steel Threshold Storm Drainage Channel System A15 is a modular linear drainage range for collecting rainwater and surface runoff around thresholds, patios, paths and paved domestic areas. This multi listing includes three separate components, allowing you to build a drainage layout to suit the project rather than relying on a single straight channel.

The Threshold Channel (1m Length) is the main drainage section used across doorways, along patio edges, beside garden rooms and at the base of paved falls where water collects. Its slim 65mm width keeps the run discreet while still providing effective surface water collection.

The Corner Piece is used where the drainage line needs to turn around internal or external corners. This is useful on wrapping patio edges, recessed entrances and paved returns where straight channels alone are not enough.

The T-Shaped Piece is designed for three-way layouts where a side branch needs to connect into the main channel run. It is useful on wider paved areas or entrances collecting water from multiple directions.

The channel body is manufactured from extruded PVC with a removable Corten steel heel guard grating. Corten develops a weathered protective patina over time, giving a rust-toned finish often chosen for contemporary landscaping, natural stone patios and modern garden schemes. Some early runoff staining can occur while the patina forms, so keep this in mind near light paving.

Rated A15 to BS EN 1433:2002, this system is suitable for pedestrian traffic only. It should not be used in driveways or vehicle trafficked areas. Install on a stable bed with suitable fall toward the outlet for best drainage performance.

Slim 65mm wide threshold drain for discreet installations

Corten steel grating develops a natural weathered finish

Modular system with straight, corner and T-piece options

Suitable for patios, paths, thresholds and paved pedestrian areas

Removable heel guard grating for maintenance access

A15 load class rated for pedestrian use only

Connects to compatible 50mm side or 80mm bottom outlets

Popular for modern landscaping and architectural schemes

The drainage channel body is extruded PVC for corrosion resistance and low maintenance use. The top grating is steel Corten, selected for its surface weathering layer that protects the steel while creating a distinctive aged finish.

Product type: Modular threshold drainage channel system
Product options: Threshold Channel (1m Length), Corner Piece, T-Shaped Piece
Grating finish: Corten steel
Body material: Extruded PVC
Load class: A15
Standard: BS EN 1433:2002
Use area: Pedestrian threshold, patio, path and paved areas
Traffic suitability: Pedestrian only
Grating type: Removable heel guard grating
Outlet compatibility: 50mm side outlet or 80mm bottom outlet with compatible accessories

Threshold Channel (1m Length):
Channel length: 1000mm
Channel height: 100mm
Channel width: 65mm

Corner Piece:
Width: 65mm
Height: 100mm
Length: 149mm x 149mm

T-Shaped Piece:
Width: 65mm
Height: 100mm