Strong Recycled Single Wall Cardboard Packing & Shipping Box – 8×5.6×2.5″ (203.2×142.24×63.5 mm, Royal Mail Small Parcel Compliant, Eco-Friendly Postal Box UK)
Strong Recycled Single Wall Cardboard Packing & Shipping Box – 8×5.6×2.5″ (203.2×142.24×63.5 mm, Royal Mail Small Parcel Compliant, Eco-Friendly Postal Box UK)
If you are looking for a secure, reliable and cost-effective packaging solution that fits Royal Mail Small Parcel rules, this 8×5.6×2.5″ cardboard box is one of the most popular choices in the UK. Made from strong recycled single wall board, it is widely used by small businesses, online sellers and brands who need a presentable, sturdy and lightweight box that keeps postage costs down. Its compact footprint makes it ideal for clothing, gifts, handmade items, cosmetics, electronics accessories and many subscription-style products. Flat-packed for easy storage, quick to assemble and fully eco-friendly, it is a practical everyday shipping box trusted across a wide range of industries.
Why This Box Is Ideal for Royal Mail Small Parcel Rates
This box has been designed to sit comfortably within Royal Mail’s Small Parcel size limits, helping you avoid unnecessary oversize charges. It is a favourite for e-commerce sellers because it offers:
- Excellent value postage for lightweight and medium-weight items
- A strong, protective structure suitable for national delivery networks
- A compact, neat presentation for retail and gifting
- Reliable outer protection that prevents crushing during transit
Using a correctly sized box is one of the easiest ways to control fulfilment costs and maintain consistent parcel performance across couriers.
Common Uses for This Size
This 8×5.6×2.5″ postal box is a top seller with businesses that ship compact but valuable or fragile items, including:
- Etsy and handmade craft sellers
- Cosmetics, skincare and beauty brands
- Phone accessories and small electronics parts
- Jewellery, candles and wax melts
- Small clothing items and accessories
- Prints, cards, stationery and office supplies
- Sample kits and subscription boxes
Measurements & Size Guidance
Internal dimensions: 8×5.6×2.5″ (203.2×142.24×63.5 mm).
These measurements are internal, giving you a true packing space for your products and protective materials.
If you need a slightly deeper box, the next size up is:
If you need a slimmer, compact option, consider:
Box Strength & Weight Capacity
Made from sturdy B-Flute single wall board, this box is engineered to handle everyday courier conditions. When packed correctly, it comfortably supports items up to 3–4 kg. Perfect for items that need structured protection without unnecessary bulk.
How to Pack This Box Effectively
- Add a layer of tissue, kraft paper or bubble as needed
- Place the item centrally to avoid edge pressure
- Use void fill for fragile goods
- Seal using a strong packing tape (H-pattern recommended)
Sustainability & Environmental Benefits
This box is made from 100% recycled cardboard and is fully recyclable, biodegradable and compostable. It contains no plastic components and is safe for kerbside recycling.
Multi-Buy Pricing (inc VAT)
| Pack Size | Total Price | Per Box |
|---|---|---|
| 25 Boxes | £11.99 | £0.48 |
| 50 Boxes | £21.99 | £0.44 |
| 75 Boxes | £31.99 | £0.43 |
| 100 Boxes | £41.99 | £0.42 |
| 200 Boxes | £79.99 | £0.40 |
Bulk and pallet quantities available – contact us for trade pricing.
Courier & Postal Guidance
This box is suitable for Royal Mail, DPD, Evri, Yodel, UPS and DHL. Always check your final packed parcel against your carrier’s size and weight limits to ensure the best rate.
Useful courier size guides:
- Royal Mail – Size & Weight Guide
- Evri – Parcel Size Guide
- Yodel – Size Guide
- DHL – Size Guide
- UPS – Dimensions & Weight
- DPD – UK Parcel Guidance
Delivery & Despatch
- Same-day despatch before 5 pm (Mon–Fri)
- Royal Mail Tracked for small orders
- DPD Next Day available
- DPD Saturday delivery available on request
Recommended Packaging Supplies
Customer Support
Need help choosing the right size? Our team is here to help.
- WhatsApp: +44 7450 981838
- info@mrbags.co.uk
- Click & Collect: 10A Locket Street, Manchester, M8 8EE
- Opening hours: Mon–Fri 10:00–19:00 | Sun 11:00–18:00
| Material | 100% Recycled Corrugated Cardboard |
| Size | 8x5.6x2.5 Inch (203x142x64 mm) |
| Color | Brown Kraft |
| Assembly | Supplies flat-packed (Sealed with Packing Tape) |
| Eco-Friendly | Fully Recyclable Biodegradable and Compostable |
| Flute Type | Single Wall B Flute |
| Postal Format | Royal Mail Small Parcel compatible when packed within weight limits |
| Recommended Storage | Store in a dry environment at 13–21°C for best performance |
| Weight Capacity | Typically up to 3-4 kg when packed correctly |
What can I pack in a 8x5.6x2.5 inch Royal Mail Small Parcel box?
This size is ideal for small gifts, accessories, jewellery, cosmetics, skincare, phone accessories, candles, wax melts, stationery and other compact items that need a strong cardboard box rather than a mailing bag.
Is this box designed for Royal Mail Small Parcel?
Yes. The 8x5.6x2.5 inch internal size is designed to fit comfortably within Royal Mail Small Parcel limits when packed and sealed correctly, helping you control postage costs.
Are the 8x5.6x2.5 measurements internal or external?
The 8x5.6x2.5 inch measurements are internal, so they reflect the usable packing space inside the box before you add any tissue, kraft paper or padding.
How much weight can this Royal Mail Small Parcel box hold?
When packed correctly with suitable padding and strong tape, this single wall box is typically used for items up to around 3 to 4 kg. Always check Royal Mail weight limits for your chosen service.
Is this small parcel box eco-friendly?
Yes. It is made from 100% recycled cardboard and is fully recyclable, biodegradable and compostable through normal UK cardboard recycling collections.
Does the box arrive flat-packed?
Yes. All boxes are supplied flat-packed to save storage space. They are quick and simple to assemble when you are ready to pack orders.
Is this box suitable for couriers other than Royal Mail?
Yes. It works well with Royal Mail, Evri, DPD, Yodel, UPS and DHL. Always check your final packed parcel size and weight against your chosen carrier's guide.
What type of tape should I use to seal this box?
We recommend clear or brown packing tape with a good quality adhesive. For heavier items, seal the base and top using an H-pattern for extra strength.
Can I buy this Royal Mail Small Parcel box in bulk or trade quantities?
Yes. Multi-buy options, bulk and pallet quantities are available for regular users such as e-commerce sellers, fulfilment centres and retailers.
Can I order a sample before placing a larger order?
Yes. Samples can be arranged so you can test the size and fit for your products before committing to a bulk purchase.
Royal Mail 24 Tracked
Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.
£1.99
DPD Next Day
Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.
£4.99
Free on orders over £100