Sierra Rear Access Through Wall Parcel and Post Box

The Sierra Rear Access Through Wall Parcel and Post Box is a secure, high-capacity parcel and mail solution designed for through-the-wall installation with rear retrieval access. Developed in response to customer demand for a parcel box with rear access and front and back trims, the Sierra has become a trusted choice for trade customers, builders, and gate installers.

Manufactured from automotive-grade galvanised steel with a double layer of powder coating, the Sierra provides strong, long-lasting protection against rust, UV rays, and everyday weather exposure. Its robust construction and weather-resistant design make it suitable for installation in side pillars, boundary walls, entrance structures, and walls surrounding properties.

The Sierra includes a standard letter flap opening, allowing both post and parcels to be delivered securely when no one is at home. The secure parcel drop system helps protect deliveries after insertion, while the rear access design allows convenient collection from the inside of the wall or pillar.

Designed to keep letters and parcels dry even when fully exposed to the elements, the Sierra is a practical and professional solution for homes, gated entrances, commercial properties, and trade installations.

Available in Black, Anthracite Grey RAL 7016, and Stainless Steel. Please note that both the black and anthracite grey Sierra Parcel Boxes are now supplied with a matt finish. Some images may show a gloss finish for product detail reference only and not the current finish.

Key Features

• Sierra rear access through wall parcel and post box
• Designed for secure parcel and letter delivery when you are not at home
• Rear access retrieval for through-wall or pillar installation
• Includes standard letter flap opening
• Manufactured from automotive-grade galvanised steel
• Double layer of thermal powder coating for enhanced rust and weather resistance
• Secure parcel drop system for protected deliveries
• Suitable for A4 format post
• High-capacity parcel and mail storage
• Designed to keep letters and parcels dry, even when exposed to the elements
• Popular with trade customers, builders, and gate installers
• Suitable for side pillars, boundary walls, and property entrance walls
• Available in Black, Anthracite Grey RAL 7016, and Stainless Steel
• Black and Anthracite Grey versions are supplied in a matt finish
• 2-year warranty included

Product Specifications

• Product Name: Sierra Rear Access Through the Wall Parcel and Post Box
• Product Type: Through Wall Parcel and Post Box
• Material: Galvanised Steel
• Finish: Double Layer Thermal Powder Coating
• Installation Type: Through Wall / Rear Access
• Height: 800mm
• Width: 373mm
• Depth: 430mm
• Mail Chute Depth: 110mm
• Face Plate with Trim: 280mm H x 415mm W
• Face Plate without Trim: 235mm H x 370mm W
• Letter Box Slot Aperture: 30mm H x 335mm W
• Parcel Box Slot Aperture: 110mm H x 335mm W
• Maximum Parcel Size: 400mm L x 300mm W x 80mm H
• Weight: 15kg
• Suitable Post Size: A4
• Colours: Black, Anthracite Grey RAL 7016, Stainless Steel
• Current Finish Note: Black and Anthracite Grey are supplied in matt finish
• Warranty: 2 years