Plain Mailer Boxes

Plain mailer boxes offer the fastest route to functional, professional ecommerce shipping — no design lead time, no print production, just strong corrugated boxes ready to pack and send. Available in a range of standard sizes, these unprinted boxes are ideal for businesses launching quickly, testing new sizes, or supplementing branded stock.

• Unprinted corrugated board — ready to use immediately
• Standard ecommerce sizes available
• Self-locking tuck-top closure
• Fast despatch — no production lead time
• Wholesale pricing, low minimum quantities

When you're ready to add your brand, our branded mailer boxes are available with the same sizes and dimensions as our plain range.

Sometimes You Just Need a Box

Not every shipment needs bespoke branding. New businesses launching before their packaging is finalised. Established brands covering an unexpected demand surge with stock not yet branded. Operations testing a new product size before committing to a printed run. Fulfilment centres needing a neutral box for a third-party brand. In all of these cases, a plain mailer box is the right answer — and trying to force a branded solution creates unnecessary delay and cost.

At The Mailer Boxes, our plain mailer boxes range is designed for exactly these situations. Standard sizes, standard corrugated construction, tuck-top closure, fast availability. Get shipping now; add your brand when the time is right.

Plain Doesn’t Mean Unprofessional

A plain corrugated box is a neutral, clean presentation. It doesn’t communicate discount or lack of care — it communicates simplicity and practicality. Many customers, particularly in B2B contexts, prefer plain packaging. And for DTC brands shipping to wholesale buyers or trade customers, a plain outer box is often more appropriate than a consumer-branded box anyway.

The option to add a custom sticker, a printed card inside, or a tissue layer means a plain box can still have brand touchpoints without requiring full custom print production. Our plain range supports these additions without modification.

Standard Size Range

Our plain mailer boxes are available in the most commonly used ecommerce sizes:

• Small: suitable for accessories, cosmetics, and lightweight retail items
• Medium: suitable for clothing, small electronics, and food products
• Large: suitable for multi-item orders, larger apparel, and gift sets
• Extra-large: suitable for bulky lightweight items and bulk shipments

Specific dimensions are available on our plain mailer boxes product page. If none of our standard sizes fit your product, custom sizes are available — though custom sizes require a minimum production run and lead time. For custom-sized plain boxes, our ecommerce mailer boxes page covers the options.

Path to Branded Packaging

Plain mailer boxes are a starting point, not an endpoint. When you’re ready to add your brand — and the benefits to repeat purchase rates, social media engagement, and perceived product quality that branded packaging delivers — we’ll transition you to a custom printed solution with the same size and structural specification as your plain stock. No relearning, no new size testing — just your brand applied to what you already know works.

Frequently Asked Questions

Can I add my logo to a plain box without a full custom print run?

The most cost-effective options are a custom-printed box seal or label applied at your packing station, or a printed card insert inside the box. Neither requires a minimum print run and both add brand presence to an otherwise plain box.

What is the minimum quantity for plain boxes?

Plain stock boxes are available from small quantities — suitable for startups and testing applications. Pricing per unit improves significantly with volume. Request a quote for your target quantity and we’ll provide current pricing.

How quickly can plain boxes be despatched?

Plain stock is held ready for fast despatch — typically 1–3 business days from order confirmation. This is significantly faster than custom printed production (8–12 business days). If speed is your primary requirement, plain boxes are the right choice.

Start Shipping. Add Your Brand When You’re Ready.

Plain mailer boxes remove every barrier between you and getting your product shipped. Request a quote today — or order direct from the product page for our standard sizes.