Calendar Mailers | Rigid Flat Mailers for Posting Calendars & Planners

Purpose-built packaging for calendars and planners. Calendar mailers are rigid, flat corrugated or board mailers sized specifically for wall calendars, desk planners and spiral-bound products - providing a protective, self-seal dispatch solution that keeps calendars flat, uncreased and damage-free from warehouse to recipient.

Browse related: Mailing Bags | Board Mailers | Rigid Board Mailers

1 product

White All Board Envelopes

From £0.21

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More About "Calendar Mailers"

Calendar Mailers are defined by rigid board construction sized for calendars. With 1 products in the range, they are used for calendar mailing, promotional dispatch where standard envelopes or packaging would not deliver the same level of presentation or function.

Available in over 25 sizes including 110 x 220mm, 114 x 162mm, 125 x 125mm, 140 x 140mm, 152 x 305mm and more, at 350gsm paper weight. Closure: peel & seal.

Benefits of Calendar Mailers

Distinctive construction — rigid board construction sized for calendars that differentiates from standard formats.
Size range — over 25 sizes to match your specific application.
Quality stock — 350gsm for a premium result.

Frequently Asked Questions

What are calendar mailers best used for?
Calendar Mailers are the preferred choice for calendar mailing, promotional dispatch. The rigid board construction sized for calendars gives them a distinctive appearance or function that standard envelopes cannot replicate.

What sizes are available?
Calendar Mailers are available in over 25 sizes: 110 x 220mm, 114 x 162mm, 125 x 125mm, 140 x 140mm, 152 x 305mm, 162 x 229mm and more. Check individual product pages for full dimensions and capacity guidance.

Customer Feedback

What Our Customers Say

See why we’re trusted as by thousands of UK businesses for packaging and envelopes through our customer reviews.

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Envelope Printing Customer

Branded envelopes that felt event-ready

We needed branded envelopes for a client event and they looked exactly right. The team were helpful from start to finish and made sure everything moved quickly so we could meet our deadline. A really smooth experience for printed envelopes.

Woman with long brown hair wearing a beige top against a plain background

Envelope Customer

Quick fix after an order issue

My order arrived with a problem, but after I emailed the team I received a quick response and the issue was sorted straight away. It was handled professionally and made me feel confident about ordering again.

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First Time Customer

Fast support when delivery went wrong

There was an issue with the courier delivering to my address, but the team dealt with it quickly and kept things moving. A replacement was arranged and the previous order was refunded without any fuss. It gave me a good first impression and I would order again.

Woman wearing a yellow sweater with a plain background

Wholesale+ Member

Reliable support for regular orders

The courier caused a problem, but Jess and Kelly were quick to help and did everything they could to sort it. They also looked at the products I order regularly and helped make future orders easier. Good value, good quality and service that feels genuinely useful.

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Envelope Printing Customer

Easy custom printed envelope order

Ordering custom printed envelopes was straightforward from the start. James answered my questions clearly, the order arrived when expected and the finished envelopes were great quality. I would be happy to use the service again.

Man wearing a light gray sweater over a collared shirt on a plain background

Wholesale+ Member

Helpful and easy to deal with

A very straightforward company to buy from. The team were helpful, clear with communication and easy to deal with, which makes a big difference when ordering packaging regularly.

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Sample Customer

Helpful advice before ordering

The team helped point me towards the right product before I placed my order. It made the decision much easier and gave me confidence that I was choosing the right packaging for what I needed.

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Packaging Customer

Useful support for flat pack cartons

Collection: Calendar Mailers