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Box Size
Material
Quantity
Order summary:
Custom Mailer Boxes
Quantity: x5 | Size: 100 x 100 x 22mm | Material: White Coated E-Flute | Print area: Single Sided | Finishing: Cut to Shape |
See what our customers say about Custom Mailer Boxes
Product description
Reinvent shipping experiences with our custom Mailer Boxes, where each delivery becomes an opportunity to impress. Whether handling your Etsy shipping, delivering gifts or sending promotional items, these boxes are built to make a statement from the outside.
Available in three sizes—and made from durable white coated E-flute, our parcel boxes are designed to both look stylish and withstand the journey. Choose single sided printing to personalise your letterbox packaging and ensure your messaging shines the moment it arrives at your customer's doorstep.
Perfect for businesses looking to make an impact with their deliveries, our mailer boxes blend practicality with style, creating a lasting impression long after the box has been opened. Make your personalised postal boxes not just functional but unforgettable.
Etsy deliveries, parcel shipping, promotional giveaways, custom subscription boxes and more.
Top tip
Take your packaging to the next level by printing on the outside of your custom mailer boxes. This creates a seamless, all-around branded experience that surprises and impresses your customers from the moment they open the box.
Looking for more ways to elevate your packaging? Discover our wide range of custom packaging solutions.
FAQs
Custom mailer boxes are sturdy, packaging solutions made from corrugated cardboard, tailored to fit specific branding needs. They feature a self-locking mechanism for easy assembly and come in various sizes. These boxes are perfect for shipping merchandise and gifts, providing protection during transit to ensure they arrive in excellent condition.
100 x 100 x 22mm: This small postal box meets Royal Mail's large letter size requirements, perfect for compact items.
255 x 168 x 22mm: This medium postal box meets Royal Mail's large letter size requirements, suitable for medium sized items.
600 x 182 x 35mm: This large postal box meetings Royal Mail's medium parcel size requirements, well-suited for larger items.
All of the aforementioned sizes are designed to comply with Royal Mail size requirements; however it is important to remember that letterbox sizes can vary on individual doors, so be sure to keep this in mind when choosing a specific size.
E-flute: This lightweight reinforced board features a smooth, bright white surface, making it an ideal choice for printed postal boxes.
Custom postal boxes are supplied flat for easy self-assembly. To assemble, begin by folding along the pre-scored lines on the cardboard. Next, insert the interlocking tabs into their corresponding slots to secure the box’s structure. Once the tabs are locked in place, fold the top and bottom flaps over and tuck them in to close the box. Make sure all edges are aligned properly and the box is securely sealed before use.
Yes, our postal boxes are recyclable since they are constructed from corrugated cardboard. To recycle them properly, remove any contents, clean off any residue, and flatten the box. Always check local recycling guidelines, as practices may vary by region.
The turnaround time for personalised postal boxes depends on your chosen product specification and finishing options. For faster delivery, we offer express production upgrades at an additional cost. To ensure your order is delivered on time, it is important we receive your artwork by the cut-off time indicated on both the product page and basket.
Please note: If your file is submitted after the cut-off time or if corrected artwork isn't provided before the next cut-off time following rejection, it will delay delivery by one working day.
We offer free standard delivery, with optional upgrades available for expedited service, including pre-10:30 AM and pre-12:00 PM for an additional cost.
Uploading custom mailer box artwork is a breeze. After placing your order, click the upload button on the confirmation page. You can also upload your artwork through the Orders tab of "My Account".
All orders will be packaged and shipped in boxes as standard. For larger orders, boxes may be secured and shipped on pallets; you’ll be notified at checkout if this applies. If your delivery address is inaccessible to a tail lift truck, please contact us to discuss alternative delivery arrangements.
Design guidelines
To make artwork setup simple, we recommend downloading the relevant product template from our templates section. Don’t forget to delete the template layer before exporting your design to PDF.
For best printing results, ensure your artwork and images are CMYK. If you use RGB, Pantone or spot colours in any element of your artwork, we will automatically convert them to CMYK which may change your colour profile.
To eliminate any font issues, make sure all fonts are ‘embedded’ or ‘converted to outlines’ before creating your PDF print file. To ensure legibility, we recommend using a minimum font size of 10pt.
For optimal image print quality, ensure all images are 300dpi to 450dpi. Anything lower than 300dpi will give poor image quality. Images higher than 450dpi will result in high file sizes and may cause longer upload times.
To avoid alignment issues during cutting, be sure to include ‘crop marks’ (offset 10mm) and ‘document bleed’ when exporting your artwork file to PDF. Refer to our product templates for the required bleed specifications.
To meet our print requirements, ensure your file is exported in Adobe PDF (Print) format, ideally as PDF/X-1a: 2001.
Need further guidance? Our help centre is here to provide the answers.
Product description
Reinvent shipping experiences with our custom Mailer Boxes, where each delivery becomes an opportunity to impress. Whether handling your Etsy shipping, delivering gifts or sending promotional items, these boxes are built to make a statement from the outside.
Available in three sizes—and made from durable white coated E-flute, our parcel boxes are designed to both look stylish and withstand the journey. Choose single sided printing to personalise your letterbox packaging and ensure your messaging shines the moment it arrives at your customer's doorstep.
Perfect for businesses looking to make an impact with their deliveries, our mailer boxes blend practicality with style, creating a lasting impression long after the box has been opened. Make your personalised postal boxes not just functional but unforgettable.
Etsy deliveries, parcel shipping, promotional giveaways, custom subscription boxes and more.
Top tip
Take your packaging to the next level by printing on the outside of your custom mailer boxes. This creates a seamless, all-around branded experience that surprises and impresses your customers from the moment they open the box.
Looking for more ways to elevate your packaging? Discover our wide range of custom packaging solutions.
FAQs
Custom mailer boxes are sturdy, packaging solutions made from corrugated cardboard, tailored to fit specific branding needs. They feature a self-locking mechanism for easy assembly and come in various sizes. These boxes are perfect for shipping merchandise and gifts, providing protection during transit to ensure they arrive in excellent condition.
100 x 100 x 22mm: This small postal box meets Royal Mail's large letter size requirements, perfect for compact items.
255 x 168 x 22mm: This medium postal box meets Royal Mail's large letter size requirements, suitable for medium sized items.
600 x 182 x 35mm: This large postal box meetings Royal Mail's medium parcel size requirements, well-suited for larger items.
All of the aforementioned sizes are designed to comply with Royal Mail size requirements; however it is important to remember that letterbox sizes can vary on individual doors, so be sure to keep this in mind when choosing a specific size.
E-flute: This lightweight reinforced board features a smooth, bright white surface, making it an ideal choice for printed postal boxes.
Custom postal boxes are supplied flat for easy self-assembly. To assemble, begin by folding along the pre-scored lines on the cardboard. Next, insert the interlocking tabs into their corresponding slots to secure the box’s structure. Once the tabs are locked in place, fold the top and bottom flaps over and tuck them in to close the box. Make sure all edges are aligned properly and the box is securely sealed before use.
Yes, our postal boxes are recyclable since they are constructed from corrugated cardboard. To recycle them properly, remove any contents, clean off any residue, and flatten the box. Always check local recycling guidelines, as practices may vary by region.
The turnaround time for personalised postal boxes depends on your chosen product specification and finishing options. For faster delivery, we offer express production upgrades at an additional cost. To ensure your order is delivered on time, it is important we receive your artwork by the cut-off time indicated on both the product page and basket.
Please note: If your file is submitted after the cut-off time or if corrected artwork isn't provided before the next cut-off time following rejection, it will delay delivery by one working day.
We offer free standard delivery, with optional upgrades available for expedited service, including pre-10:30 AM and pre-12:00 PM for an additional cost.
Uploading custom mailer box artwork is a breeze. After placing your order, click the upload button on the confirmation page. You can also upload your artwork through the Orders tab of "My Account".
All orders will be packaged and shipped in boxes as standard. For larger orders, boxes may be secured and shipped on pallets; you’ll be notified at checkout if this applies. If your delivery address is inaccessible to a tail lift truck, please contact us to discuss alternative delivery arrangements.
Design guidelines
To make artwork setup simple, we recommend downloading the relevant product template from our templates section. Don’t forget to delete the template layer before exporting your design to PDF.
For best printing results, ensure your artwork and images are CMYK. If you use RGB, Pantone or spot colours in any element of your artwork, we will automatically convert them to CMYK which may change your colour profile.
To eliminate any font issues, make sure all fonts are ‘embedded’ or ‘converted to outlines’ before creating your PDF print file. To ensure legibility, we recommend using a minimum font size of 10pt.
For optimal image print quality, ensure all images are 300dpi to 450dpi. Anything lower than 300dpi will give poor image quality. Images higher than 450dpi will result in high file sizes and may cause longer upload times.
To avoid alignment issues during cutting, be sure to include ‘crop marks’ (offset 10mm) and ‘document bleed’ when exporting your artwork file to PDF. Refer to our product templates for the required bleed specifications.
To meet our print requirements, ensure your file is exported in Adobe PDF (Print) format, ideally as PDF/X-1a: 2001.
Need further guidance? Our help centre is here to provide the answers.
