Heavy-Duty Strong Single Wall Cardboard Box 9×6×6″ (228.6×152.4×152.4 mm) – Recycled, Rigid & Reliable Packing Box UK
Heavy-Duty Strong Single Wall Cardboard Box 9×6×6″ (228.6×152.4×152.4 mm) – Recycled, Rigid & Reliable Packing Box UK
This 9×6×6″ heavy-duty single wall cardboard box is built for everyday shipping where you need proper strength without the bulk of double wall. Made from a tougher recycled board, it gives you a rigid, crush-resistant box that stays smart in transit and protects items that standard single wall boxes struggle with. A reliable, compact size for e-commerce sellers, subscription brands, makers, fulfilment teams and any business that wants strong, clean and eco-friendly packaging that keeps postage costs under control.
A Better Choice for Strong, Affordable Packing
Many businesses face the same problem: standard single wall boxes collapse too easily, while double wall boxes feel excessive and cost more to ship. This upgraded single wall box sits exactly in the middle – light, rigid and surprisingly tough.
- Rigid board that performs close to double wall strength
- Excellent crush resistance during courier handling
- Lightweight enough to keep postage costs low
- Neat appearance for customer deliveries
- Eco-friendly and made from recycled materials
If you need a dependable packing box that feels strong but stays affordable, this is the size most small UK businesses start with.
Common Uses for This 9×6×6″ Box
This box is widely used across the UK for items such as:
- Health, beauty and skincare orders
- Electronics, small gadgets and cables
- Crafts, candles, wax melts and hobby items
- Clothing accessories, socks, small textiles
- Office supplies, stationery and packaging kits
- Hardware, small tools and DIY components
- Subscription items and welcome packs
Measurements & Size Guidance
Internal size: 9×6×6″ (228.6×152.4×152.4 mm).
These are internal measurements to help you assess true loading space.
Closest Alternative Sizes
If you need something slightly larger or deeper:
If you want a budget-friendly option instead of the heavy-duty grade:
Comparison: Heavy-Duty vs Standard Single Wall
| Feature | Heavy-Duty 9×6×6″ | Standard Single Wall |
|---|---|---|
| Strength | Rigid, near double wall performance | Basic everyday strength |
| Best Use | E-commerce, fragile/light–medium goods | General packing, low-risk items |
| Weight Support | 5–6 kg when packed well | 2–3 kg typical |
| Cost Efficiency | Better long-term durability | Lower upfront price |
Box Strength & Weight Capacity
Built from a heavier B-Flute board, this box handles national courier routes confidently. Packed correctly, it supports around 5–6 kg and maintains its shape under pressure.
How to Pack This Box for Best Results
- Add kraft paper or a light wrap on the base if needed
- Centre items to avoid corner strain
- Use void fill for fragile goods
- Seal with good quality packing tape (H-seal recommended)
Sustainability & Environmental Benefits
This box is made from 100% recycled cardboard and is fully recyclable, biodegradable and compostable. No mixed materials, no plastic, and suitable for kerbside recycling across the UK.
Multi-Buy Pricing (inc VAT)
| Pack Size | Total Price | Per Box |
|---|---|---|
| 15 Boxes | £10.99 | £0.73 |
| 30 Boxes | £20.49 | £0.68 |
| 60 Boxes | £38.99 | £0.65 |
| 120 Boxes | £74.99 | £0.62 |
Wholesale and pallet quantities available – ideal for fulfilment centres and regular monthly users.
Courier & Postal Compatibility
This box works with all major couriers including Royal Mail, DPD, Evri, Yodel, UPS and DHL. Always check final packed dimensions and weight.
Useful Size Guides
- Royal Mail – Size Guide
- Evri – Size Guide
- Yodel – Size Guide
- UPS – Dimensions
- DPD – UK Parcel Guidance
Related Products
- 6×4×4″ Standard Single Wall
- 12×9×3″ Standard Single Wall
- 14×10×6″ Standard Single Wall
- All Cardboard Boxes
- Single Wall Boxes
- Small Cardboard Boxes
Why Buy from Us?
We supply thousands of UK businesses every month – from online sellers and subscription brands to fulfilment centres and high-street shops. Our boxes are designed for real daily use, low damage rates and straightforward packing. Fast delivery, consistent quality and practical sizing help keep your operation running smoothly.
Delivery & Despatch
- Same-day despatch before 5 pm (Mon–Fri)
- Royal Mail Tracked for small orders
- DPD Next Day available
- DPD Saturday delivery on request
Need Help?
If you are unsure which size suits your products, our team can guide you.
- 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 | 9x6x6 Inch (229x152x152 mm) |
| Color | Brown Kraft |
| Assembly | Flat-packed; Seal With Packing Tape |
| Board Grade | 450TL2TCSF |
| Eco-Friendly | Fully Recyclable, Fully Recyclable Biodegradable and Compostable |
| Flute | B Flute |
| Recommended Storage Temperature | 13–21°C For Best Performance |
| Weight Capacity | Approx. 3–4 kg When Packed Correctly |
What items fit well in a 9x6x6 inch cardboard box?
This size suits health and beauty goods, electronics, candles, crafts, cables, office supplies, clothing accessories and general e-commerce products.
Is this 9x6x6 box stronger than normal single wall?
Yes. It is made from a tougher grade of single wall board that performs close to double wall strength while staying lightweight.
Are the measurements internal?
Yes. The 9x6x6 inch measurements are internal so you can plan your packing space accurately.
How much weight can it hold?
When packed correctly, this box can support around 5–6 kg. Always check courier weight limits.
Is the box eco-friendly?
Yes. It is made from 100% recycled cardboard and is fully recyclable, biodegradable and compostable in the UK.
Does it arrive flat-packed?
Yes. All boxes are supplied flat-packed for easy storage and quick assembly.
Is this box suitable for Royal Mail and couriers?
Yes. It works with Royal Mail, DPD, Evri, Yodel, UPS and DHL. Just check final parcel weight.
Do you offer bulk or trade pricing?
Yes. Bulk, trade and pallet quantities are available for regular users and fulfilment centres.
Can I get a sample first?
Yes. Samples can be arranged if you want to check size and strength before buying larger packs.
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