All Board White Envelopes – Portrait Style | Rigid Mailing Envelopes for Secure Packaging

Send your important documents and items with confidence using our All Board White Portrait Envelopes. These rigid envelopes are constructed entirely from durable board to ensure maximum protection during mailing or storage. With a clean white finish and portrait orientation, they’re perfect for professional, business, or personal use.

All Board Construction – Full rigid design prevents bending, creasing, or corner damage
Portrait Orientation – Ideal for upright document presentation
Crisp White Finish – Clean and professional appearance
Secure Closure – Gummed or peel & seal flap (depending on variant)
Multi-Use – Great for photos, paperwork, prints, certificates, and more

 Available Sizes (Portrait Style):

• 241 x 178 mm – Ideal for small documents and artwork

• 273 x 222 mm – Great for slightly larger flat items

• C6 – 162 x 114 mm – Fits A6 or A4 folded twice

• DL – 220 x 110 mm – Fits A4 folded into thirds

• C5 – 229 x 162 mm – Fits A5 or A4 folded once

• C5+ – 238 x 163 mm – Extra room for thicker A5 content

• C4 – 324 x 229 mm – Fits A4 flat

• C3 – 457 x 330 mm – Fits A3 flat

 Ideal For:

• Certificates & legal documents

• Art prints, photos, and brochures

• Business and office use

• Mailing or storing flat, delicate items

Choose the perfect size to suit your needs. Whether you're shipping artwork, paperwork, or promotional materials, our All Board White Portrait Envelopes keep your contents safe and presentable.