Mailer Boxes

Looking for custom mailer boxes that protect your products and show off your brand? We’ve got your back. At Buy Packaging Boxes, we create high-quality, eco-friendly mailer boxes that are built to last and designed to impress — whether you're shipping beauty kits, merch drops, or handmade goods. No minimums, fast delivery, and full support from first proof to final delivery.

★★★★★ 4.8 · Rated Excellent Trustpilot
Food Safe Grease Resistant Recyclable Eco-Friendly No Minimum Order
Premium MaterialsStrong, food-grade options
Customer Loved275+ verified reviews
Fast UK DeliveryTracked dispatch
Eco-FriendlySustainable packaging
No Minimum OrderAny quantity welcome
Advantages & Benefits

6 Reasons UK Businesses Order From Us Again & Again

Trusted by startups, bakeries, and enterprise brands across the UK — for quality, speed, and value that scales with you.

Stronger Brand Impact

Packaging customers remember long after unboxing.

Secure & Product-Safe

Robust protection throughout transit and delivery.

Fast & Reliable

Quick turnaround with tracked dispatch every time.

Expert Support

Packaging specialists guide every step of your order.

Sustainable Choices

Eco materials that align with your brand values.

Cost-Effective & Scalable

Small batch to bulk — competitive pricing throughout.

Custom Mailer Boxes That Do More Than Just Ship

Let’s face it — your mailer box is often the first real-world touchpoint a customer has with your brand. That’s a big moment. And with custom mailer boxes, you can make it count. Whether you’re packing curated gift sets or subscription kits, our mailer packaging is made to look sharp, hold strong, and feel like it came from someone who cares.

Find the Right Fit with Flexible Mailer Box Sizes?

No two products are exactly alike — and your packaging shouldn’t be either. We offer a wide range of mailer box sizes to fit everything from delicate accessories to heavy bundles. Need something precise? We’ll make it to spec.

Whether you need small branded boxes for boutique items or large bulk mailer boxes for eCommerce fulfilment, we’ll get the dimensions just right — no crushed corners, no oversized waste.

Custom Mailer Packaging That Speaks Your Brand

We don’t do boring. With our custom printed mailer boxes, you’re in full control of the look and feel. Go bold with full-colour artwork, or keep it clean and minimal — whatever fits your brand best.

Looking to impress your customers at first unboxing? Add:

  • Foil stamping, spot UV, or inside printing
  • Mailer box inserts for organised presentation
  • Seasonal designs or colour themes (think red mailer boxes for Christmas or promos)
  • Tear strips, magnetic closures, or other finishing touches

Our in-house team can help you map it all out — even if all you’ve got is a logo and a rough idea.

Printed Mailer Boxes That Are Easy on the Planet

People care about what their packaging’s made of — and honestly, so do we. That’s why we use stuff like FSC®-certified board, low-impact inks, and biodegradable materials when you need them. It looks good and it feels right.

Looking for something uncoated and recyclable? Go with kraft board. Want to balance protection and polish? We’ve got white or black lined corrugate options too. All functional, all sustainable, and all ready to ship without guilt.

Fast Turnaround, No Minimums, Total Flexibility

Whether you’re running a startup or a fast-moving brand, we get that time and flexibility matter. That’s why:

  • There’s no minimum order quantity on most styles
  • You can test short runs before going bulk
  • We ship across the UK with quick lead times
  • Need help with sizing or shipping-ready styles? Just ask — we’ll walk you through it

You can buy mailer boxes today, or chat with us first — no pressure.

Why Brands Trust Buy Packaging Boxes?

From independent makers to established retailers, we’ve helped brands across the UK bring their packaging vision to life. Here’s why they keep coming back:

  • Custom mailer boxes with inserts, magnetic lids, and premium finishes
  • Cardboard mailer boxes that are tough, lightweight, and budget-friendly
  • Printed mailer boxes that look professional from inside and out
  • Fast service, free design support, and UK-based packaging advice

We’re not just printers — we’re your packaging partner.

Add material details in the Product Materials custom field.

Add printing details in the Product Printing custom field.

Add finishes in the Product Finishes & Add-ons custom field.

Product Specifications

Box Style Custom Mailer Boxes (Fully Customisable)
Dimensions (L × W × H) Any Custom Size & Shape – Made to Fit Your Product Perfectly
Order Quantity Minimum 50 Boxes – Bulk Orders up to 500,000 Units
Material / Paper Stock Eco-Friendly Kraft, SBS (Bleached Card), Textured Cardstock, Black Card,
Art Card, Bux Board, E-Flute & L1 Corrugated, One-Side White Kraft
Printing Options No Printing (Plain), CMYK Full Colour, PMS (Pantone Matching),
Spot Colours for Brand Accuracy
Surface Finishing Gloss / Matte Lamination, AQ Coating, Gloss UV, Matte UV,
Spot UV, Embossing & Debossing
Structural Features Die-Cutting, Precision Scoring, Folding, Glueing, Perforation
Premium Add-Ons Window Patching, Custom Cut-Outs, Foil Stamping
(Gold, Silver, Copper, Red, Blue)
Artwork Proofing Free Flat View & 3D Mock-Up (Physical Sample Available on Request)
Production Time 7–10 Business Days After Final Artwork Approval
Shipping & Packaging Flat Packed for Safe Transit • Worldwide Delivery via UPS, DHL, FedEx, SkyNet
Eco & Quality Standards Recyclable Materials • Food-Safe Options Available • Premium Print Quality

FAQs – All Your Mailer Box Questions, Answered

What sizes do your mailer boxes come in?

We offer everything from small, gift-sized mailers to large, flat-packed boxes. If you’ve got custom dimensions in mind, we’ll build to fit — no need to settle for "close enough."

Are these boxes strong enough for shipping?

Absolutely. We use rigid, corrugated cardboard that’s built to hold up in transit — ideal for postal and courier use. Need something extra tough? We’ll recommend the right specs.

Can I get mailer boxes with inserts?

Yes! We can create custom mailer boxes with inserts to hold products neatly in place — especially useful for subscription boxes, bottle kits, or multi-product bundles.

What printing options do you offer?

We use digital, offset, and flexographic printing — depending on your quantity, budget, and design. Whether you want full bleed artwork or a simple branded logo, we’ll make it look sharp.

How long does production and delivery take?

Usually around 7–10 working days from final design approval. Need it quicker? Let us know — we’ll do what we can.

Are these boxes eco-friendly?

Yep — we use recycled board for most of our eco friendly mailer boxes, and they’re easy to recycle again after use. If you’re going for low-waste or compostable packaging, just let us know — we’ve got options that’ll keep your boxes green without losing the look.

Simple Process

How It Works

From first enquiry to your door in five straightforward steps.

1

Choose Your Box

Pick a style or go fully custom to match your vision.

2

Send Your Details

Share dimensions, quantity, and artwork files.

3

Approve Your Proof

Review a 3D mockup before production starts.

4

Production Begins

Expert quality checks throughout the run.

5

Delivered to You

Carefully packed and tracked to your door.

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Customer Reviews

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Mailer Boxes
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