{"title":"12 x 18 Envelopes","description":"\u003cstyle\u003e#html-body [data-pb-style=S9QADM2]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}\u003c\/style\u003e\u003cdiv data-content-type=\"row\" data-appearance=\"contained\" data-element=\"main\"\u003e\u003cdiv data-enable-parallax=\"0\" data-parallax-speed=\"0.5\" data-background-images=\"{}\" data-background-type=\"image\" data-video-loop=\"true\" data-video-play-only-visible=\"true\" data-video-lazy-load=\"true\" data-video-fallback-src=\"\" data-element=\"inner\" data-pb-style=\"S9QADM2\"\u003e\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\"\u003e\u003cp\u003eElevate your mailing and packaging needs with Envelopes.com’s versatile 12 x 18 inches envelopes. Available in paper, plastic, and foil options, these envelopes are designed to meet a variety of requirements. The plastic envelopes, available with hook and loop closures or button and string, offer durability and secure sealing, perfect for important documents and materials. For a classic touch, the brown kraft envelopes provide sturdiness and reliability. For those seeking a standout look, our silver and gold foil envelopes with peel and seal closures add a touch of elegance and protection. With custom printing options available, you can personalize your envelopes to showcase your brand or add a unique touch to your correspondence. Whether you're sending artwork, documents, or promotional materials, trust in the quality and versatility of these 12 x 18 envelopes to enhance your mailing experience.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","products":[{"product_id":"clear-jumbo-booklet-12x18-velcro-brand-closure-plastic-envelope-item-457v0cl","title":"12 x 18 Booklet Plastic Envelopes with Hook and Loop Closure - Clear","description":"\u003cp\u003eExperience convenience, protection, and visibility with our 12 x 18 Booklet Plastic Envelopes with Hook and Loop Closure in clear. Ideal for oversized documents, presentations, or artwork, these envelopes offer generous space and reliable storage. The hook and loop closure provides quick yet secure access, ideal for on-the-go professionals and organized offices alike. Constructed from thick, transparent plastic, they resist wear and keep your contents clearly visible. Whether you're sorting materials at your desk or carrying them to a meeting, these envelopes ensure a polished presentation with practical performance. Organize smarter with a durable design you can trust.\u003c\/p\u003e","brand":"JAM","offers":[{"title":"Default Title","offer_id":48188882682086,"sku":"457V0CL","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/files\/457v0cl_b3046404-17c6-4da0-8fe7-2aabef2d5605.png?v=1786615972"},{"product_id":"clear-12x18-booklet-button-string-plastic-envelope-item-457b1cl","title":"12 x 18 Booklet Plastic Envelopes with Button \u0026 String - Clear","description":"\u003cp\u003eProtect your important documents in our 12 x 18 Booklet Plastic Envelopes with Button and String Closure in clear. These envelopes combine heavy-duty plastic construction with full visibility, allowing you to identify contents at a glance. The oversized format is perfect for larger paperwork, blueprints, design sheets, and more. Whether you’re organizing at home or in the office, the button and string closure adds a classic, secure touch that keeps everything neatly in place. Built for repeated use and everyday durability, these envelopes make a smart, professional impression wherever they go. Experience easy organization without compromising on quality. Holds up to 100 Sheets of standard letter-sized (8.5\" x 11\") paper.\u003c\/p\u003e","brand":"JAM","offers":[{"title":"Default Title","offer_id":48188885467366,"sku":"457B1CL","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/files\/457b1cl_47f8000b-08b1-4590-95a9-c32f7ab35a46.png?v=1786615975"},{"product_id":"blue-12x18-booklet-button-string-plastic-envelope-item-457b1bu","title":"12 x 18 Booklet Plastic Envelopes with Button \u0026 String - Blue","description":"\u003cp\u003eDiscover the superior quality of our 12 x 18 Booklet Plastic Envelopes with Button and String Closure in classic blue. Designed for larger documents, presentation materials, posters, and reports, these envelopes offer ample space while maintaining a clean, professional appearance. Made from durable plastic, they resist wear and water damage, making them ideal for long-term storage or transport. The secure button and string closure ensures contents stay in place while providing quick access when needed. With a vibrant blue finish and reliable construction, these envelopes bring both functionality and flair to your filing system. Stay organized and polished with a storage solution that performs and impresses.\u003c\/p\u003e","brand":"JAM","offers":[{"title":"Default Title","offer_id":48188887957734,"sku":"457B1BU","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/files\/457b1bu_d725a651-3ab7-4d24-aaee-c95df1bac92b.png?v=1786615983"},{"product_id":"envelopes-brown-kraft-booklet-12x18-brown-kraft-document-item-pc0511pl","title":"12 x 18 Booklet Envelopes - Brown Kraft 40lb","description":"\u003cp\u003eFor superior strength and a naturally professional look, our 12 x 18 Brown Kraft Booklet Envelopes deliver on every front. Constructed from heavyweight 40lb kraft paper, these envelopes are ideal for securely transporting large or multi-page documents, presentation packets, artwork, and more—keeping everything flat, uncreased, and protected. The side-opening booklet design allows for quick and easy loading, while the smooth kraft surface offers a rustic yet refined appearance that’s easy to label or customize. Whether you’re sending out important mailings for business, school, or creative projects, these envelopes provide the kind of dependable performance and polished presentation that make your materials stand out. When durability, space, and style matter, these 12 x 18 envelopes rise to the occasion.\u003c\/p\u003e","brand":"BNC","offers":[{"title":"Default Title","offer_id":48189038756070,"sku":"PC0511PL","price":0.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/files\/pc0511pl_f4c6e733-7345-4e46-9ace-7548f67069cc.png?v=1786616840"},{"product_id":"white-tyvek-r-18lb-12-x-18-x-2-booklet-expansion-envelopes-with-peel-and-seal","title":"12 x 18 x 2 Booklet Expansion Envelopes with Peel and Seal - White Tyvek® 18lb","description":"\u003cp\u003ePrepared for secure document handling, Envelopes.com White Tyvek® 18lb 12 x 18 x 2 inch Booklet Expansion Envelopes with Peel and Seal help keep contents secure. Tyvek® construction with an 18lb paper weight helps resist tears, punctures, moisture, and abrasion during transit and storage. The 12 x 18 x 2 inch booklet expansion format provides added space for presentations, catalogs, manuals, proposals, and thicker sets. A peel and seal closure helps create a secure bond without added moisture and supports faster mail preparation. This booklet expansion format supports larger document sets, dependable protection, and organized handling for office use. The white exterior keeps presentation crisp for office mailings, internal paperwork. This format is a strong choice for mailing environments that require consistency and paper security.\u003c\/p\u003e","brand":"JAM","offers":[{"title":"Default Title","offer_id":48189205184742,"sku":"PC1654PL","price":4.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/files\/pc1654pl_5_06b5c636-42a6-4cf3-bbad-4e8b1f908180.png?v=1786617787"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0795\/8927\/7926\/collections\/env.collection.main.2026.envelopes-by-size-12-x-18.png?v=1790274161","url":"https:\/\/www.envelopes.com\/collections\/envelopes-by-size-12-x-18.oembed","provider":"Envelopes.com","version":"1.0","type":"link"}