Same Day Shipping

All your orders made before 2pm will be shipped on the same day

48h Tracked

Tracked 48h for Orders weighing less than 3Kg - Tracked 24h for orders above 3kg

Free shipping for order above £150

Order £150 worth of good and we will ship it free of charge

Customer Satisfaction

we aim at 100% satisfaction

100 x A4 Book Mailers 234 x 334 mm

100 x A4 Capacity Book Mailers/ Cardboard Envelopes 234 mm x 334 mm – 400gsm – Peel and Seal – Rip and Strip Open – Rigid Card Mailers for Royal Mail Large Letter Posting (PIP) – by Greener Route


RRP: £32.50

Availability: 5 in stock

Weight10 kg

100 X A4 Book Mailers | Brown Cardboard Envelopes 234 x 334 mm

Our large book mailers/ Cardboard Envelopes 234 x 334 mm are made from  recycled 400gsm Card. They feature Peel and Seal. Rip and Strip Open.  Our rigid Card Mailers are ideal for Royal Mail Large Letter Posting (PIP).

Book Wraps and Cardboard Mailers are the perfect choice for a fast, hassle-free packaging experience. It provides robust protection for a huge range of products, and specifically, as the name suggests, for mailing books. Simply wrap your product in the flexible corrugated cardboard for all-round cushioned protection. Furthermore, you can Adjust the mailer to the depth of your item to provide a precise fit for enhanced security and prevent movement in transit.

Their slim, compact appearance makes them a highly presentable packing agent for businesses widespread. So if you would like to ensure high-quality protection for your books or other similar sized products, this an great eco-friendly solution.

A4 Book Mailers Features

Our cost-effective cardboard envelopes are the answer when you want to mail flat items – like books – in a strong protective board backed envelope but need extra depth. Sometimes known as “capacity book mailers”, they can adapt to the thickness of the contents by up to 50mm – perfect for also posting DVDs, artwork, computer games and brochures.

Simply pop the item/s inside and close with the secure peel-and-seal strip. You can label or write directly on the smooth Manilla Kraft finish and there is an easy tear-off opener. The cardboard envelopes are Royal Mail large letter size (up to 25mm thick and 750g). 

All of our mailers have gussets to allow them to act as a small postal box when goods are inserted. Each size complies with Royal Mail PiP guidelines. You can therefore send your items with a clear idea of postage costs. Other features include a tear strip for easy opening and peel strip for secure closure.

  • Envelope-like mailers manufactured from 100% recycled and recyclable material
  • Two strengths of capacity book mailer available:
  • Standard solid board – light to medium duty
  • Equipped with peel-&-seal closure strip and easy open tear strip
  • Scored for increased capacity – up to 40mm



Greener Route

Greener Route Logo
Weight10 kg


There are no reviews yet.

Be the first to review “100 x A4 Book Mailers 234 x 334 mm”

You may also like…