Large Letter Boxes

Buy Large Letter Boxes for Hassle-Free Posting

Looking for strong, lightweight, and cost-effective large letter postal boxes? At Crystal Mailing, we offer a premium selection of Royal Mail-friendly large letter postal boxes designed to keep your items secure while reducing postage costs. Perfect for e-commerce businesses, retailers, and individuals who need to send documents, books, accessories, or small products safely. Crystal Mailing proudly offers our services across the whole United Kingdom ensuring fast and reliable delivery options no matter where you are based. We also offer a walk in service at our Salford branch where you can call in and place your order and collect the very same day,

29 products

Why Choose Our Large Letter Postal Boxes?

✅ Royal Mail Large Letter Compliant – Save on shipping costs with size-approved boxes.
✅ Strong & Durable – Made from high-quality corrugated cardboard for maximum protection.
✅ Lightweight Design – Helps reduce postage costs without compromising strength.
✅ Eco-Friendly Materials – 100% recyclable & sustainable packaging.
✅ Available in Bulk – Buy wholesale and enjoy prices benefits.
✅ Fast UK Delivery – Get your orders delivered quickly across the UK.

Large Letter Box Sizes & Specifications

Our large letter boxes are available in a variety of sizes to suit your shipping needs, including C4/A4, C5/A5, DL, C6/A6, and C7/A7. Whether you're sending documents, brochures, clothing, or small electronics, we offer the perfect size for secure and efficient packaging. In addition to the range of sizes, our large letter boxes come in multiple colours, including Black, Brown, Blue, Pink, Purple, and White, allowing you to choose the ideal colour to match your brand and make your shipments stand out.

Best Uses for Large Letter Postal Boxes 

Our large letter boxes are ideal for shipping:
📦 Books & Magazines – Secure, lightweight, and easy to post.
📦 Clothing & Accessories – Perfect for jewelry, scarves, and small fashion items.
📦 Electronics & Gadgets – Protect mobile accessories, cables, and small tech items.
📦 Stationery & Documents – Keep paperwork and files crease-free.

How to Pack Your Items for Safe Shipping 

1️⃣ Choose the right box size – Ensure your item fits snugly to prevent movement.
2️⃣ Use protective padding – Add bubble wrap or tissue paper for delicate items.
3️⃣ Seal securely – Use high-quality packing tape to close the box firmly.
4️⃣ Label correctly – Add the recipient’s details and fragile labels if necessary.

Buy Large Letter Boxes Online – Order Today!

Shop with confidence at Crystal Mailing. Our large letter postal boxes offer the best combination of affordability, strength, and sustainability as they are FSC approved. Whether you need a small pack for occasional use or bulk orders for your business, we’ve got you covered.

👉 Order now and enjoy fast UK delivery!

FAQs

1. What are Large Letter Boxes?

Large letter boxes are postal boxes that meet Royal Mail’s size and weight regulations for large letters. They are specifically designed to help businesses and individuals ship items securely and cost-effectively, such as documents, books, and small products, while reducing postage costs.

2. What Sizes are Available for Large Letter Boxes?

We offer a variety of sizes for our large letter boxes, including C4/A4, C5/A5, DL, C6/A6, and C7/A7. These sizes are perfect for different items like books, documents, and small electronics. We also offer multiple colour options such as Black, Brown, Blue, Pink, Purple, and White.

3. Are the Large Letter Boxes Eco-Friendly?

Yes! Our large letter boxes are FSC approvedand made from 100% recyclable and sustainable materials, ensuring that your shipping needs are met while minimizing your environmental impact.

4. Can I Buy Large Letter Boxes in Bulk?

Absolutely! We offer bulk purchase options, allowing you to save on costs when buying large letter boxes for your business or personal use. Bulk buying is a great option for e-commerce retailers and other businesses looking for regular shipments.

5. How quickly do you deliver Large Letter Boxes in the UK?

We offer fast UK delivery on all orders. Delivery times vary based on your location and order size, but we aim to dispatch orders as quickly as possible. Orders placed before 1 PM are dispatched the same day. We provide free shipping on all orders via a 48-hour courier service. Next-day delivery is also available. For more details, please visit our Delivery Information page.