Postal Mailing Box Double Wall Cardboard 40x40x40 cm
Postal Mailing Box Double Wall Cardboard 40x40x40 cm
Constructed with dual layers of corrugated cardboard made from 125gsm sheets, this heavy-duty mailing box provides outstanding crush resistance and strength. Measuring 40x40x40 cm internally with a wall thickness between 6 and 7 mm, it delivers reliable protection for packing, shipping, and long-term warehouse storage.
These durable brown packing boxes are easy to assemble and can be stored flat without wear and tear. Crafted from 100% recyclable, high-quality corrugated cardboard, they offer an eco-friendly and dependable packaging solution for both fragile and heavier items.
Key Features
| Internal Dimensions | 400 x 400 x 400 mm |
| Material | 125gsm Corrugated Cardboard |
| Wall Type | Double Wall |
| Wall Thickness | 6–7 mm |
| Color | Brown |
| Recyclability | 100% Recyclable |
Highlights
- 16″X16″X16″ (approx. 400 x 400 x 400mm) brown flat mailing box
- Box dimensions are based on the internal dimensions (L x W x H), not external dimensions.
- Box wall thickness between 6 and 7 mm, made from 125gsm cardboard sheets
- Double wall: robust and highly durable
- Easy to assemble and convenient to ship
- Lightweight to reduce postal costs
- Made from superior quality raw materials
- Sustainable: 100% recyclable
Materials & care
Made from 125gsm, 100% recyclable double-wall corrugated cardboard. Store flat in a dry environment to maintain structural integrity.
Sizing & fit
Internal dimensions measure approximately 400 x 400 x 400 mm (16 x 16 x 16 inches). Wall thickness is between 6 and 7 mm. Please note that sizes may vary by a few millimeters due to machine tolerances.
Frequently asked questions
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