Our brown large letter postal cardboard boxes (344x235x20mm) are manufactured from high quality brown cardboard to help make your packages more presentable. Manufactured from single wall cardboard, these 344x235x20mm large letter postal boxes are the ideal packaging solution for any ecommerce, mailing or fulfilment company wishing to send their items in a more professional looking solution.
When packaging your items with our 344x235x20mm brown postal boxes, it is vital that the items contained within are securely protected. Based on our own experience, it is important that your products are not just well packaged, but that the packaging itself is representative of the quality of your products. To help maintain the professional look and feel of your boxes we would suggest securing your boxes with clear or brown, high quality packaging tape – all of which can be purchased from us. Click here to view our range of low cost packaging tape.
Pricing in Proportion (PiP) Sizes
Our brown postal boxes can be identified using Royal Mail’s Pricing In Proportion index. Our 344x235x20mm sized brown cardboard box specifically falls into the Royal Mail “Large Letter” category.
Key Features Of Our 344x235x20mm Brown Postal Cardboard Boxes
- Our large letter 344x235x20mm brown postal packaging boxes adhere to Royal Mail’s PiP guidelines, so you can accurately calculate your postage costs.
- These high quality postal boxes offer a lightweight design and come with reliable protection to ensure your goods are secure during transit.
- All of our brown postal boxes come flat packed.
- These 344x235x20mm large letter boxes are highly presentable, very easy to construct and can be used both professionally and for personal usage.
- Colour: Brown outer & brown inner
- Internal Dimensions (Length x width x height): 344x235x20mm / 34.4.3×23.5x2cm
- External Dimensions (Length x width x height): 350x247x22mm / 35×24.7×2.2cm
- Format: A4+
- Pack Size: Pack of 10, 25, 50, 100, 200, 500 or 1000
- PiP Size: Large Letter
- For size guidance only this would replace the DavPack code: AELL03
- Mailcoms SKU: MCP-400567
- Please Note: Branding appears on the inside flaps of each box – not visible when constructed.
All third party product names, product codes, product SKU's and company names are trademarks™ or registered® trademarks of their respective holders. Use of these names or codes does not imply any affiliation with or endorsement by the trademark holder and nor does it suggest any reference or comparison to the quality of our goods vs the quality of the goods of the trademark holder.
We offer a free standard 3-5 working day delivery service on most of our website orders (£100 minimum order spend for packaging supplies). Please see additional details below for clarification, alternatively please add your required items to your basket where the total shipping costs will be calculated for you.
Please note our delivery cut off times are as follows:
- Packaging Supplies: 3.00pm
Please note that parcels can be delivered any time between the hours of 7am to 6:00pm Monday to Friday, unfortunately we are unable to offer specific times for deliveries or offer Saturday deliveries. Delivery times detailed below can be effected by local delivery, seasonal and / or weather conditions.
Standard 3 – 5 Working Day Delivery
Standard 3 – 5 Working Day Delivery is FREE on orders over £100.00, if your order is under this value, the charge will be at a standard rate of £6.95. Working days are Monday to Friday, we do not deliver on bank holidays or weekends or include these days within our time scales. We cannot make deliveries outside of England, Wales, Scotland and Northern Ireland. Unfortunately we cannot deliver to a PO Box or a BFPO address. Please note a minimum delivery charge of £9.95 will be quoted on the following postcodes, irrespective of the value of the order; AB31-38, AB41-56, BT, FK19-21, HS1-9, IV41-49, IV51, IV55-56, KA27-28, PA20, PA41, PA60-88, PH42-44, GY, JE, IM, PO31-41, TR21-25.
Next Working Day Delivery Upgrade
Next Working Day delivery charges will be at a standard rate of £9.95. Orders received before 3:00pm Monday – Thursday we will aim to deliver next working day, orders received before 3:00pm Fridays we will aim to deliver the following Monday (with the exception of Bank Holiday Mondays, where deliveries will be on the Tuesday). Please note we are unable to offer a guaranteed next day delivery service to the following postcodes; AB31-38, AB41-56, BT, FK19-21, HS1-9, IV41-49, IV51, IV55-56, KA27-28, PA20, PA41, PA60-88, PH42-44, GY, JE, IM, PO31-41, TR21-25 therefore please allow 3-5 days delivery.
Depending on your total basket order, delivery charges may increase compared to the above and advertised postage charges. This is due to multi-consignment/overweight items and/or delivery locations. Please add the items required to your basket to update your delivery charge. Occasionally we may need to requote your packaging cost if the delivery location and consignment size is outside of our current couriers capabilities, if this is case we will contact you to discuss and clarify.
IMPORTANT NOTICE: Due to the current Covid-19 challenges in some areas please allow a little longer for your packages to arrive. If you have chosen Standard Delivery or 48 Hour Delivery please get in touch if there is no sign of your purchase after 5 working days. If you have requested Next Working Day Delivery then please allow 48 hours before getting in touch.