Envelopes for business mailing

Begin by matching size to your documents. For letters that don’t require folding, C4 (324x229 mm) or A4-sized envelopes are ideal options, while B4 (250x350 mm) accommodates slightly larger contents. Slim notes and receipts fit 110x220 mm wallets. Paper thickness matters too; 100 GSM envelopes provide stiffness and opacity, ensuring professional presentation without translucence.

Choose between peel-and-seal and self-adhesive designs. Peel-and-seal envelopes close quickly with a simple press, while self-adhesive variants rely on an adhesive strip for durable sealing. Both options are widely offered in bulk packs, making daily office mailing faster and neater without moisture or messy glues.

Prioritize envelopes made from sturdy white paper at about 100 GSM to maintain a crisp, official look and prevent document visibility. White finishes enhance legibility and presentation for formal correspondence, while two-ply or reinforced options add a touch of reliability when sending important papers.

Gazelle-branded envelopes appear across sizes such as A4 and C4, with options including self-adhesive and peel-and-seal variants. In addition, generic suppliers offer bulk cartons and assorted packs, giving you choices that fit different business needs while maintaining a professional standard.

C4 envelopes are specifically designed to hold A4 documents flat, measuring 324x229 mm, ensuring contracts and certificates stay crisp without bending. This size is ideal for official correspondence that benefits from a neat, unfolded presentation.

Self-adhesive envelopes provide quick, clean sealing with minimal effort, while peel-and-seal options speed up the closure process further by removing moisture steps. Large bulk packs, such as 200 pieces or 150 pieces, help offices maintain stock for high-volume mailing without sacrificing speed or reliability.