Custom First-Class Flat Envelopes

First-Class Envelopes

Looking for an affordable way to send letters or lightweight packages? First-class mail provides an excellent value in terms of personal and professional mailings, guaranteeing that your mail will be delivered anywhere across the country in one to three days. To take full advantage of first-class mail services, you will need to have the appropriate envelopes on hand. Envelopes.com proudly offers a wide selection of first-class envelopes in a wide range of sizes. Catalog envelopes, as they are also known, are easily recognizable due to their green triangle border pattern on both sides and typically used to send flat, bulky items or several small items all at once. First-class envelopes are perfect for businesses, because the professional design incentivizes addressees to open brochures, catalogs, letters, and manuscripts more quickly than they might open a standard envelope. Each envelope features a center seam construction and a self-adhesive flap on the short side, which helps to keep the contents from falling out after opening. No matter what your particular set of sending needs may be, we have you covered. First-class flat envelopes come in a variety of sizes: • 6 x 9 envelopes (open end) • 7 ½ x 10 ½ envelopes (open end) • 9 x 12 envelopes (open end) • 10 x 13 envelopes (open end) • 10 x 15 envelopes (open end) • 11 ½ x 14 ½ envelopes (open end) Design your own envelopes with our easy-to-use design tools We make it easy to create one-of-a-kind envelopes that add the spark back to everyday correspondences and important mailings. Make the most of our high-quality design and printing services! We offer a wide variety of ready-made templates that you can personalize by uploading your own artwork and changing the placement or style of fonts. If you have been looking for a cost-effective way to get your marketing message into the hands of your customers, you can add a logo to give your first-class flat envelopes more of a corporate appeal. Whether your artwork is already ready to go or you need to start from scratch, the online customization process is as simple and straightforward as can be! 1. Choose the template you would like to customize. 2. Click the “customize” button in the bottom right corner. 3. Use our online design tool to customize your envelopes. Need Recipient Addressing? Save yourself the headache and time of addressing your own first-class envelopes. Take full advantage of our recipient addressing services. You can create and save your address book with our easy-to-use address template or you can enter your address list line by line. You will be able to preview each and every address along the way. Which Paper Weight Should You Choose? Paper weight is measured in pounds (lbs.) and refers to the thickness or sturdiness of a sheet of paper. The higher the number, the thicker the paper or card stock. Please note, paper weight does not refer to the actual weight of a single piece of paper. Our first-class flat envelopes are currently available in 11 lb. to 80 lb., with or without peel and seal. With more than 40 years of experience, we understand how important it is to leave a lasting impression. That is precisely why we offer an assortment of first-class envelope colors and customization options for you to choose from. We are also here to help you every step of the way. If you have any questions about first-class mailings, feel free to chat online with one of our friendly customer service representatives for additional information or further assistance.