Below are the most reliable, popular, and value-for-money online packaging suppliers.

¹ Packn.co.uk – Best for Affordable, Fast-Delivery Packaging Boxes

If you’re looking for a balance of quality, price, and fast delivery, Packn stands out. Perfect for both small businesses and individual customers.

Why Packn?

• Large range of postal boxes, moving boxes, eCommerce boxes
• Cheap online packaging boxes without compromising quality
• Next-working-day delivery available
• Strong, durable materials suitable for Royal Mail & couriers
• Ideal for eBay, Etsy, Amazon, and Shopify sellers
• 24/7 access to customer support via email

Best for:

✔ Small businesses
✔ E-commerce sellers
✔ House moves
✔ Bulk wholesale purchases

² UPAC – Best for Custom Package Designing & Branded Boxes

If you need custom packaging, UPAC is the parent company of Packn and a leader in creative, branded, and custom-size packaging solutions.

Why Choose UPAC?

• Full custom package design services
• Supports brand identity & premium unboxing experiences
• Offers custom printed boxes, promotional packaging & branded cartons
• High-quality design studio & production team
• Ideal for products that require unique sizes or luxury branding

Best For:

✔ Medium & large businesses
✔ Food & drink brands
✔ Subscription boxes
✔ Retail product packaging
✔ Brands needing custom prints or bespoke sizes

³ Amazon UK – Fast delivery, high variety

Amazon offers many box suppliers, but quality varies.

Pros:

• Extremely fast delivery (Prime)
• Good for urgent orders
• Large variety

Cons:

• Inconsistent box quality
• Not ideal for bulk wholesale
• Higher pricing compared to specialist suppliers

⁴ Tesco Online – For basic moving boxes

Tesco offers basic packing boxes in-store and online.

Pros:

• Easy to buy while shopping
• Good for quick, household needs

Cons:

• Very limited sizes
• Not ideal for businesses
• Often thinner material

Best for: Home moves, occasional use

⁵ U-Packaging / Online Packaging Wholesalers

There are multiple wholesale-only sites in the UK.

Pros:

• Good for bulk
• Low per-unit prices

Cons:

• High minimum order quantity
• Slower customer support
• Longer delivery windows

Best for: Large-volume businesses

Pros:

• Custom prints
• Strong brand presence

Cons:

• Higher costs
• Longer production times

Best for: Branding, luxury packaging

Which One Is Best for You?

Your Need	Best Option
Cheap online packaging boxes	Packn.co.uk
Fast next-day delivery	Packn.co.uk
Custom package designing	UPAC
Branded packaging boxes	UPAC
Food, soap, cake packaging	UPAC / specialist custom
Postal packaging boxes	Packn.co.uk
Bulk wholesale	Packn / UPAC depending on customisation

When to Choose UPAC vs Packn?

Choose Packn if you need:

• Fast delivery
• Cheap boxes
• Everyday packaging
• Postal & e-commerce boxes
• Moving boxes
• Bulk orders without custom printing

Choose UPAC if you need:

• Custom printed boxes
• Brand packaging
• Unique dimensions
• Product packaging design
• Retail-ready branded boxes
• High-volume commercial solutions

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Final Recommendation

If you simply need affordable online packaging boxes with next-day delivery, Packn.co.uk is the best choice.

If you need custom package designing, unique branding, or specialised packaging, then UPAC is the right partner — and with Packn as its retail arm, you get unmatched packaging expertise from start to finish.