Stormguard Proline AM5Ex78 – Outward Door Threshold – Matt Silver

The Stormguard Proline AM5Ex78 Outward Door Threshold in Matt Silver is a robust, regulation-ready threshold solution for outward-opening doors, designed with energy efficiency, drainage, and safety in mind. Supplied in 1000mm, 2000mm, and 3000mm lengths, the Matt Silver finish delivers a clean, contemporary appearance.

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Designed for total flexibility, the AM5Ex78 Matt Silver can be fitted as the fourth side of a door frame or retrofitted into an existing threshold setup. It’s designed to seal door gaps from 16mm to 21mm, helping reduce drafts and thermal loss.

Its thermally broken construction improves energy efficiency by minimizing cold bridging and is fully compatible with most door and frame materials, including wood, PVCu, fibreglass, aluminium, steel, and carbon fibre.

The unit features pre-drilled drainage holes to manage water effectively, while its low-profile form factor allows it to sit directly on level thresholds, reducing installation time and complexity. It’s also a top pick for carpeted floors, where a flush fit is essential.

This threshold meets Part M regulations (section 0.23) when used with the Proline Low Ramp – 04CP224, ensuring full accessibility compliance. Its non-slip surface enhances safety in wet or slippery conditions, and it comes supplied with end caps to seal off the ends of the channel.

Key Benefits

• Install Versatility: Fourth frame side or retrofit compatible

• Gap Sealing: Closes gaps from 16mm–21mm

• Drainage Built-In: Pre-drilled holes manage moisture

• Thermal Efficiency: Thermally broken to meet insulation standards

• Material Compatibility: For wood, PVCu, fibreglass, aluminium, steel, carbon fibre

• Direct Fit: Mounts easily onto level thresholds

• Carpet Compatible: Clean finish over carpeted flooring

• Non-Slip Grip: Enhanced safety in wet conditions

• Building Regulation Ready: Meets Part M when used with 04CP224 Proline Low Ramp

• Neat Finish: Includes end caps

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