Double Wall Boxes/Cartons
Overview
This product is a double wall corrugated carton in the popular square footprint format, listed as 455 x 455 x 300mm (also shown as 18 x 18 x 12). Double wall cartons are designed for stronger performance than single wall boxes, making them a dependable choice when you need extra protection in storage, handling and distribution. They are commonly selected for heavier items, fragile goods, or shipments that may experience more demanding transit conditions.
Because this is a configurable listing, you may see different pack quantities and pricing options. The core product remains the same: a robust, double wall shipping carton intended to help protect contents and maintain box integrity through packing, stacking and transport.
Key Features
Double wall strength
Built using double wall corrugated board for improved rigidity and resistance to crushing compared with standard single wall cartons. This makes it well suited to heavier loads and more challenging shipping environments.
Practical square footprint
The 455 x 455mm base (18 x 18) provides a versatile internal footprint that works well for a wide range of products, including items that benefit from a stable, square pack format.
Protective depth
The 300mm (12) depth offers useful internal height for bulky items, multi-item packs, or products that require cushioning materials such as void fill, paper, or foam.
Shipping and storage ready
A classic carton format designed for efficient packing, sealing and handling. Suitable for warehouse storage, order fulfilment and distribution workflows.
Compatible with common packing methods
Designed to be sealed with standard packaging tapes and used with typical protective packaging materials. Ideal for manual packing benches and general dispatch operations.
- Double wall corrugated carton for enhanced protection
- 455 x 455 x 300mm (also shown as 18 x 18 x 12)
- Square footprint for stable packing and stacking
- Good choice for heavier, fragile or high-value items
- Suitable for storage, fulfilment and shipping
Typical Uses
- Shipping heavier products that need extra box strength
- Protecting fragile items with added cushioning/void fill
- Warehouse storage where stacking strength is important
- E-commerce fulfilment for bulky or multi-item orders
- General distribution and transit packaging
455x455x300 (18x18x12) Double Wall Carton — Full Product Guide
This guide explains what a double wall carton is, why it is used, and how to get the best performance from this box style in real packing and shipping environments.
How It Works
Corrugated cartons protect goods by combining a rigid outer structure with a shock-absorbing fluted core. A double wall carton uses two layers of fluting (with linerboards between and on the outside), which generally increases stiffness and helps the carton resist compression and puncture during handling. In practice, this can mean better performance when cartons are stacked, moved through distribution networks, or exposed to the knocks and drops that can occur in transit.
Materials and Construction
This is a double wall corrugated shipping carton. Corrugated board is widely used because it offers a strong strength-to-weight ratio and is easy to assemble and seal. Double wall construction is typically chosen when a standard single wall box may be at risk of bowing, crushing, or losing shape under load.
For best results, match the carton to the weight and fragility of your contents, and use appropriate internal protection (such as paper, bubble wrap, foam, or other void fill) to prevent movement inside the box.
Floor Type Compatibility
In warehouse and packing environments, cartons like this are commonly used on a variety of surfaces including concrete floors, racking systems, and palletised storage. If cartons will be moved frequently across rough surfaces, consider using pallets, slip sheets, or protective handling methods to reduce abrasion and corner damage.
Health and Safety
- Manual handling: Double wall cartons are often used for heavier items. Ensure safe lifting practices and do not exceed safe manual handling limits.
- Sealing: Use suitable packaging tape and apply it correctly to reduce the risk of the carton opening during transit.
- Internal protection: Prevent shifting contents to reduce impact damage and to help keep the carton stable when carried.
Ideal Applications and Use Cases
This carton size and construction is commonly selected for:
- Heavier shipments where extra stacking strength is beneficial
- Fragile goods that require both a strong outer box and internal cushioning
- Bulky items that need a square footprint and useful internal depth
- Multi-item packs where void fill is used to immobilise products
Maintenance, Cleaning and Care
Corrugated cartons are typically supplied flat-packed and should be stored in a clean, dry area. To maintain performance:
- Keep cartons away from moisture and damp conditions.
- Avoid prolonged exposure to direct water sources or high humidity.
- Store flat to prevent warping and to keep edges crisp for easy assembly.
- Rotate stock so cartons remain in good condition for packing.
Case Study (Example Packing Workflow)
Scenario: A fulfilment team needs a reliable carton for shipping mixed orders that include heavier items and fragile components. They choose a double wall carton in this format to improve protection and reduce damage rates.
Approach:
- Assemble the carton and seal the base using a consistent taping method.
- Add a cushioning layer to the bottom.
- Place products centrally and fill voids to prevent movement.
- Seal the top securely and apply labels to a clean, flat surface.
Outcome: The stronger carton structure helps maintain shape during handling and stacking, while the internal packing method reduces movement-related damage.
Who is it for?
- Warehouses and distribution centres shipping heavier cartons
- E-commerce and retail fulfilment operations
- Manufacturers shipping products to customers or trade partners
- Businesses seeking a stronger alternative to single wall boxes
Colours / Features Available
This listing is for a standard corrugated shipping carton. Product appearance and board finish can vary by supply batch and carton style. If you require a specific finish or printed option, consider confirming requirements before ordering.
Sizes Available
This product page represents a specific carton size shown as 455 x 455 x 300mm (also displayed as 18 x 18 x 12). If you need a different size or a bespoke solution, explore other carton sizes within the double wall range.
Reference products used for comparison (not the same product):
Comparable listings for an 18 x 18 x 12 double wall corrugated box can be found from other packaging suppliers, such as Uline’s 18 x 18 x 12 double wall box listing.