Premium Single Wall Cardboard Mailing Boxes - Multiple Sizes Available
High-quality single wall cardboard boxes perfect for shipping and mailing. Made in the UK from durable 125 kraft single wall corrugated board, these flat-packed boxes offer reliable protection for your items.
Choose from Royal Mail-compatible sizes for Small Parcel (up to 2kg) and Medium Parcel (up to 20kg) services.
Simply select your preferred size and quantity from the dropdown menu. Each box features sturdy construction while remaining lightweight for cost-effective shipping.
| Inches (L x W x H) | Millimetres (L x W x H) | Royal Mail Compatibility |
|---|---|---|
| 4" x 4" x 4" | 102mm x 102mm x 102mm | Small Parcel |
| 8" x 8" x 8" | 203mm x 203mm x 203mm | Medium Parcel |
| 12" x 9" x 12" | 305mm x 229mm x 305mm | Medium Parcel |
| 18" x 12" x 12" | 457mm x 305mm x 305mm | Medium Parcel |
Payment Options
We accept PayPal, credit cards, and bank transfers. Payment required within 5 days of purchase.
Shipping Information
Orders placed before 2pm Mon-Fri ship same day. Delivered via 48hr courier service (24-48hr delivery to mainland UK). Express 24hr shipping available for £2.50 extra.
Returns Policy
30-day return policy with full refund (excluding shipping) upon receipt of returned items in original condition.
