--- product_id: 318025443 title: "SmithPackaging Brown Cardboard Postal Boxes 50, C6 Large Letter Size, 162 x 114 x 20mm, E Flute Corrugated, Royal Mail Compliant" brand: "smithpackaging" price: "3 zł" currency: PLN in_stock: false reviews_count: 8 url: https://www.desertcart.pl/products/318025443-smithpackaging-brown-cardboard-postal-boxes-50-c6-large-letter-size store_origin: PL region: Poland --- # C6 large letter size 162x114x20mm 50-pack bulk value 100% recyclable & eco-friendly SmithPackaging Brown Cardboard Postal Boxes 50, C6 Large Letter Size, 162 x 114 x 20mm, E Flute Corrugated, Royal Mail Compliant **Brand:** smithpackaging **Price:** 3 zł **Availability:** ❌ Out of Stock ## Summary > 📦 Ship Smart, Ship Stylish: The Ultimate Eco-Friendly Postal Solution ## Quick Answers - **What is this?** SmithPackaging Brown Cardboard Postal Boxes 50, C6 Large Letter Size, 162 x 114 x 20mm, E Flute Corrugated, Royal Mail Compliant by smithpackaging - **How much does it cost?** 3 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/318025443-smithpackaging-brown-cardboard-postal-boxes-50-c6-large-letter-size) ## Best For - smithpackaging enthusiasts ## Why This Product - Trusted smithpackaging brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Conscious Choice:** Made in the UK from 100% recyclable materials—ship smart, ship green. - • **Royal Mail Compliant:** Guaranteed to meet postal regulations, ensuring smooth delivery every time. - • **Durable & Lightweight:** E flute single wall corrugated cardboard offers sturdy protection without extra weight. - • **Bulk Ready for Business:** Pack of 50 boxes to keep your shipping game strong and consistent. - • **Perfect Fit for Large Letters:** Sized precisely at 162 x 114 x 20mm to meet Royal Mail large letter standards. ## Overview SmithPackaging’s Brown Cardboard Postal Boxes come in a convenient 50-pack, sized C6 large letter (162 x 114 x 20mm), made from durable E flute single wall corrugated cardboard. Manufactured in the UK, these lightweight yet sturdy boxes are 100% recyclable and fully compliant with Royal Mail large letter requirements, making them the perfect choice for professional, eco-conscious shipping. ## Description SmithPackaging C6 Cardboard Large Letter Postal Boxes are the presentable, professional and lightweight packaging solution for your posting. Built with a strong sheet of single-wall cardboard, these boxes are easy to assemble without the need for other packaging materials. Also, they are manufactured to adhere to Royal Mails large letter sizes to keep your postage costs down. Perfect choice for e-commerce stores or if you're sending letter-size friendly treats to someone you love. Measures 162 mm length by 114 mm width by 20 mm height. Comes in a pack of 50. ## Features - Pack of 50 C6 large letter boxes - Made from durable single wall corrugated cardboard. Made in the UK and 100% recyclable - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | SmithPackaging | | Part Number | 5060741922219 | | Product Dimensions | 16.2 x 11.4 x 2 cm; 1.33 kg | | Item model number | 5060741922219 | | Size | C6 (162 x 114 x 20mm) | | Colour | Brown | | Material | Paper | | Item Package Quantity | 1 | | Maximum weight capacity | 2E+1 Kilograms | | Included Components | SmithPackaging C6 Brown Large Letter Cardboard Postal Boxes Pack of 50 162 x 114 x 20mm | | Batteries Required? | No | | Item Weight | 1.33 kg | ## Product Details - **Brand:** SmithPackaging - **Colour:** Brown - **Material:** Paper - **Product dimensions:** 16.2L x 11.4W x 5H centimetres - **Item weight:** 1.33 Kilograms - **Breaking strength:** 20 Kilograms - **Number of Boxes:** 1 - **Weight limit:** 2E+1 Kilograms ## Images ![SmithPackaging Brown Cardboard Postal Boxes 50, C6 Large Letter Size, 162 x 114 x 20mm, E Flute Corrugated, Royal Mail Compliant - Image 1](https://m.media-amazon.com/images/I/61Z-5pI20US.jpg) ![SmithPackaging Brown Cardboard Postal Boxes 50, C6 Large Letter Size, 162 x 114 x 20mm, E Flute Corrugated, Royal Mail Compliant - Image 2](https://m.media-amazon.com/images/I/41rZYov49NS.jpg) ![SmithPackaging Brown Cardboard Postal Boxes 50, C6 Large Letter Size, 162 x 114 x 20mm, E Flute Corrugated, Royal Mail Compliant - Image 3](https://m.media-amazon.com/images/I/41ewqZDz3KS.jpg) ## Available Options This product comes in different **Size Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality product in various quantities *by M***Y on 7 March 2025* Consistent good quality boxes. Easy to assemble with clear folds, sturdy and stand up well to being handled in the post. Value for money option for smaller quantity purchases. ### ⭐⭐⭐⭐⭐ Great quality *by R***9 on 15 May 2025* Really pleased with the quality of these A6 boxes, the crease lines are spot on, l foldered the box so easily, l sent another companies back because of the very poor creasing lines, these are great, the card also seems great quality and a crisp clean feel to it. Thank you Smiths ### ⭐⭐⭐⭐⭐ Exactly as described *by S***P on 10 December 2024* Well made and strong, came quickly. Just what I needed. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/318025443-smithpackaging-brown-cardboard-postal-boxes-50-c6-large-letter-size](https://www.desertcart.pl/products/318025443-smithpackaging-brown-cardboard-postal-boxes-50-c6-large-letter-size) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-13*