Gates and Fences and Side Panels Large Rear Access Parcel Box Adjustable 10–115mm – Epsilon GM

Gates and Fences and Side Panels Large Rear Access Parcel Box Adjustable 10–115mm – Epsilon GM

Important Pre-Purchase Notice
We strongly recommend downloading and reviewing the installation instructions prior to purchase. This will allow you to assess suitability for your gate, fence, or wall structure and ensure a smooth installation process.

The Epsilon GM is a high-capacity gate and fence mounted parcel box designed specifically for secure installation within timber, aluminium, composite and steel panels. Engineered in the UK and manufactured in Europe, it offers structural reliability, installation flexibility and modern architectural styling.

Designed with one of the largest usable parcel insertion openings in its category, Epsilon GM allows larger deliveries to be deposited securely without compromising safety. The integrated letter flap removes the need for a separate letterbox, delivering a clean and efficient two-in-one solution.

Key Features:

• Large usable parcel insertion opening
• Integrated letter flap
• Adjustable sliding construction (10–115mm panel thickness)
• Suitable for timber, aluminium, composite and steel gates
• Intelligent perimeter mounting system
• Integrated architectural trim frame included
  
• Secure internal anti-theft drop mechanism
• Protective foam-lined parcel chamber
• Designed in the UK
• Manufactured in Europe
• 2 Year Warranty

Secure Drop Mechanism

Parcels are deposited through a controlled internal anti-theft system. Once inserted, items drop securely into a locked rear-access collection chamber, preventing retrieval from the delivery side.

A protective foam lining at the base of the compartment provides cushioning, reduces impact noise, and enhances internal protection.

Designed for Modern Gate & Fence Installations

Developed in consultation with UK gate manufacturers and fencing specialists, the Epsilon GM features a fully adjustable installation system. The sliding lower section accommodates panel thicknesses from 10mm to 115mm, making it suitable for:

• Timber gates and fence panels
• Aluminium and slatted gate systems
• Composite fencing
• Steel and fabricated metal panels

The intelligent two-part construction ensures structural rigidity while delivering a tailored, built-in appearance.

Refined Installation Design

The installation process has been engineered to deliver precision and a clean architectural finish:

• The upper section slides seamlessly through the prepared aperture
• The front collar is secured using perimeter mounting points
• An integrated trim frame (included as standard) creates a refined, built-in appearance

The two-part configuration allows for accurate alignment during installation, ensuring a consistent and professional result across a wide range of gate and panel types.

Product Dimensions:

• Total Height: 1020 mm
• Width: 425 mm
• Overall Depth: 543 mm
• Front Trim Height: 341 mm
• Front Trim Width: 474 mm
• Adjustable Panel Compatibility: 10–115 mm thickness

Installation Requirements & Structural Considerations

This parcel box is a robust, heavy-duty unit (approx. 27kg+). It is essential that the intended installation surface, whether a gate, fence panel, or structure, is capable of safely supporting this weight.

Please ensure that hinges, fixings, and supporting materials are structurally sound and suitable for load-bearing applications. Certain lightweight gates or panels may not be appropriate without additional reinforcement.

Failure to assess structural suitability prior to installation may result in damage to the product or mounting surface.

Recommended Installation Approach

For installations on gates or fence panels, we recommend providing a supportive base beneath the parcel box—such as a plinth, timber support, or solid foundation (e.g. concrete or brick).

This helps distribute the weight effectively and reduces long-term stress on hinges and mounting points.

For built-in or wall installations, the surrounding structure typically provides sufficient support; however, for thinner panels or lightweight constructions, additional reinforcement should be considered.

At Letterbox4you all our manufacturers are certified with IS0 9001, which is  the international standard that specifies requirements for a quality management system. Our letterboxes are subject to the highest quality procedure and of the highest standard.

Letterbox Supermarket brand belongs to Letterbox4you Limited, it's main purpose is to provide easy and quick access to quality, long lasting and secure mailboxes. Most of our products are manufactured in Europe and we select only top quality suppliers to sell their products on our website.