Expandable mailers
RBD Mailers – user-friendly packaging with a self-adhesive HK closure, made of brown or white paper. These expandable mailers with a square base are ideal for sending reams of documents as well as bulkier items. Widely used in e-commerce, they are also perfect for mailing and storing contracts and other documentation. Expandable mailers manufactured by PACKAIR are a reliable solution for companies and organizations. Our mailers are designed for shipping clothing, thick correspondence such as books, manuscripts, or instruction manuals. Thanks to their expandable structure, they are tear-resistant and offer the flexibility to pack exactly what you need to send. We offer both white and brown versions made from eco-friendly, durable paper.
Choose your color, select the size, and place your order for mailers today!
An added advantage of our mailers is that they take up only twice as much space in a box as standard envelopes—making them a space-efficient choice. Order a box of expandable mailers directly from our wholesale warehouse. Each package contains 250 mailers in your selected size.
With PACKAIR, you’re also making an environmentally conscious choice—our products are made of paper! We also offer custom-printed RBD mailers, available in a variety of sizes and printing techniques. Whether you need a small logo or full-surface branding, we’ve got you covered!
TO PLACE AN ORDER:
Send us an inquiry:
– Specify the order quantity (most commonly based on quarterly demand);
– Choose the mailer sizes (usually more than one format, depending on the variety of items you ship).
Available Formats
We maintain a constant stock of standard RBD mailers. Our clients typically select more than one size of expandable mailer. Choose between white or brown paper and pick from the readily available formats—then simply reach out to us. Ordering standard formats is cost-effective: most non-standard sizes, with or without custom printing, are assembled by hand, which affects their final price.
Index: 41630050
Format: C4 RBD
Dimensions: 229 x 324 x 38 mm
Paper: White, 120 g/m²
Quantity per carton: 250 pcs
Quantity per pallet: 7,000 pcs
Total pallet height: 1.50 m
Index: 41633050
Format: C4 RBD
Dimensions: 229 x 324 x 38 mm
Paper: Brown, 120 g/m²
Quantity per carton: 250 pcs
Quantity per pallet: 7,000 pcs
Total pallet height: 1.50 m
Index: 41730052
Format: B4 RBD
Dimensions: 250 x 353 x 38 mm
Paper: White, 120 g/m²
Quantity per carton: 250 pcs
Quantity per pallet: 6,000 pcs
Total pallet height: 1.50 m
Index: 41733050
Format: B4 RBD
Dimensions: 250 x 353 x 38 mm
Paper: Brown, 120 g/m²
Quantity per carton: 250 pcs
Quantity per pallet: 6,000 pcs
Total pallet height: 1.50 m
Index: 41830057
Format: E4 RBD
Dimensions: 280 x 400 x 40 mm
Paper: White, 150 g/m²
Quantity per carton: 250 pcs
Quantity per pallet: 5000 pcs
Total pallet height: 1.40 m
Index: 41833070
Format: E4 RBD
Dimensions: 280 x 400 x 40 mm
Paper: Brown, 150 g/m²
Quantity per carton: 250 pcs
Quantity per pallet: 5000 pcs
Total pallet height: 1.40 m
The RBD expandable mailers are made from smooth white and brown offset paper, with grammages varying depending on the envelope size.
Below is the texture of the smooth white OFFSET paper:
Below is the texture of the smooth brown kraft paper, a blend that includes recycled content:
Product Packaging Information:
- The mailers are packed in brown cartons sealed with paper tape.
- Each carton is labeled with information regarding quantity and contents;
- Each pallet is marked with pallet cards detailing quantity and contents.
