Office Supplies

Find the answers you need below. If you have any additional questions, our customer service team is always here to support you.

Question 1: Which envelopes are best for professional business correspondence?
Window envelopes and DIN long envelopes are ideal for professional business correspondence. Window envelopes allow the recipient's address to show through, eliminating the need for separate labeling and ensuring accuracy when mailing invoices, letters, or official documents. Our range includes C4 envelopes for sending unfolded A4 documents, C5 mailing bags for folded A4 sheets, and standard DIN long formats. All our business envelopes feature high-quality paper stock suitable for corporate communication. At karton.eu, you benefit from competitive prices on bulk orders and fast shipping across Europe, ensuring your office supplies arrive when you need them.

Question 2: What is the difference between window envelopes and standard envelopes?
Window envelopes feature a transparent plastic or glassine panel that displays the recipient's address printed on the enclosed document, making them highly efficient for invoices, statements, and official mailings. Standard envelopes require manual addressing or labels. Window envelopes save time, reduce errors, and provide a professional appearance for business correspondence. They are available in various formats including DIN long, C4, and C5 sizes. Our office supplies range offers both types at competitive prices with options for bulk purchasing. Whether you need mailing bags for high-volume dispatch or individual envelopes for everyday use, karton.eu delivers quality office materials direct from warehouse with reliable European shipping.

Question 3: Do you offer bulk discounts on office supplies like copy paper and mailing bags?
Yes, at karton.eu we offer attractive tiered pricing and volume discounts on office supplies including A4 copy paper, bulk mailing bags, and envelopes. The more you order, the better the unit price becomes—ideal for businesses, authorities, and organizations with ongoing office material needs. You can order everything from single packs to full copy paper pallets and wholesale quantities of mailing bags. Our B2B customers particularly benefit from flexible payment options including invoice billing, competitive bulk pricing, and personalized service. With over 2,000 formats available and trusted service since 2007, we ensure your office supplies are delivered quickly and cost-effectively across Europe.

Question 4: What envelope formats are available for different office mailing needs?
Our office supplies range includes all standard envelope formats for professional mailing needs. DIN long envelopes (110 x 220 mm) are perfect for folded A4 letters and invoices. C4 envelopes (229 x 324 mm) accommodate unfolded A4 documents, ideal for contracts or certificates. C5 mailing bags (162 x 229 mm) suit folded A4 pages and smaller catalogs. We also stock brown mailing bags in various sizes for shipping documents and lightweight items. All formats are available with or without windows, in white or brown kraft paper. At karton.eu, you'll find the right envelope solution for every business requirement, backed by fast delivery and competitive pricing on both small and bulk orders.

Question 5: Can I order custom printed paper bags with my company logo?
Yes, we offer custom printed paper bags and branded paper bags with your company logo for businesses looking to enhance their brand visibility. Our bespoke printing solutions allow you to create professional, personalized packaging that represents your company during product delivery or at events. Choose from various sizes of paper gift bags and standard paper bags suitable for retail, promotional activities, or corporate gifting. We provide flexible ordering quantities to meet both small business and large enterprise needs. Our office supplies expertise extends to custom branding solutions with competitive pricing and reliable Europe-wide delivery. Contact our team to discuss your custom paper bag requirements and receive a tailored quote.

Question 6: What is A4 copy paper 80gsm and why is it ideal for office printing?
A4 copy paper 80gsm is the standard weight paper (80 grams per square meter) used for everyday office printing, copying, and document creation. This office supplies essential offers the perfect balance between quality and cost-efficiency—it's thick enough to prevent ink bleed-through and provide a professional appearance, yet economical for high-volume printing needs. Our A4 printer paper 80gsm is compatible with all standard laser and inkjet printers, copiers, and fax machines. It delivers excellent print clarity for business documents, reports, invoices, and correspondence. At karton.eu, we stock this office material in packs, boxes, and full pallets with attractive bulk discounts, ensuring your workplace never runs out of essential printing supplies.

Question 7: How fast can I receive office supplies for urgent business needs?
At karton.eu, we understand that office supplies are often needed urgently for business operations. We offer fast international delivery direct from warehouse, with same-day dispatch available for orders placed early. Customers in mainland Germany benefit from complimentary standard shipping, while Europe-wide delivery ensures our envelopes, mailing bags, and copy paper reach you quickly wherever you're located. Our high stock availability across over 2,000 formats means your required office materials are ready to ship immediately. For time-sensitive requirements, our reliable logistics ensure minimal delays, keeping your business running smoothly. Whether you need business envelopes for an urgent mailing campaign or copy paper to replenish depleted stocks, we prioritize speed and reliability.