Frequently asked questions
Practical answers on choosing business, security and mailing envelopes.
Envelope types and sizes
Which envelope size should I choose: C6, DL, C6/5, C5, C4, B5 or B4?
C6 suits small cards and invitations; DL and C6/5 suit A4 folded in thirds; C5 suits A4 folded in half; C4 holds A4 flat. B5 and B4 suit larger items. Standard dimensions: C6 114 × 162 mm, DL 110 × 220 mm, C6/5 114 × 229 mm, C5 162 × 229 mm, C4 229 × 324 mm, B5 176 × 250 mm, B4 250 × 353 mm. Please confirm availability before ordering.
Can I order custom printed envelopes with my company logo?
Yes. Ask about business envelopes with a logo, return address or another design. Include size, quantity, colours, print placement and deadline. We can also discuss personalisation, printing, inserting and mailing.
Are window envelopes or non-window envelopes better?
Window envelopes help with bulk letters when the address appears on the document. Non-window envelopes allow more space for branding and conceal more of the contents. Specify a left or right window and address position; we will confirm the model.
Which seal is suitable: peel-and-seal, gummed HK or self-adhesive SK?
Peel-and-seal closes after removing a protective strip. HK often means a water-activated gum and SK a self-adhesive seal. Supplier terminology can vary, so we confirm the closure and durability with your quotation.
Do security envelopes with inside printing protect confidential documents?
Opaque envelopes with inside printing make contents harder to read through the paper. For HR, medical or financial mail, choose paper, seal and window for the risk involved. Inside printing alone does not indicate tampering or make an entire process GDPR-compliant.
When should I use padded, mailing bag, coloured or decorative envelopes?
Padded envelopes cushion small items; mailing bags suit selected goods. Coloured, metallic and decorative envelopes suit invitations and promotional materials. Ask about material, strength and printing for a specific model.
Where can I buy envelopes cheapest and compare prices per 1,000?
The lowest-cost option depends on size, paper, quantity, print, seal and delivery. Compare the unit price and price per 1,000 for the same specification. Ask for a tailored quote on wholesale or repeat orders; we do not claim the lowest market price.
How do I choose the best, highest-quality envelopes for my mailing?
The best choice fits the contents and delivery method. Compare paper weight, opacity, seal strength, print quality and samples. Tell us whether you need premium, branded, protective or confidential mail envelopes; we will confirm specifications in the offer.
Ordering and envelope delivery
What is the minimum envelope order?
Minimum quantities depend on the type, size and printing. Ask about branded envelope orders from 50 items. Availability and pricing are confirmed in your quotation.
What is the lead time for envelopes?
Lead time depends on availability, quantity, printing and artwork approval. We confirm production and delivery dates before you order.
Can we order envelopes for several companies or branches?
Provide company details, quantities, artwork and delivery addresses. Separate invoicing and deliveries can be agreed in the envelope quotation.
Can I place a one-off envelope order?
Yes, ask about a one-off purchase. Quantity, price, payment and delivery terms are confirmed before order acceptance.
What determines the price of printed envelopes?
Price depends on size, paper, security print, window, closure, colours and quantity. Send these specifications to Mikołaj Bednarek for a comparable quotation and delivery cost.