Ever wrestle with oversized mailers? Say goodbye to that struggle! Our carefully selected 9x12 shipping envelopes are your new best friend for sending those slightly-too-big-for-a-letter, perfectly-sized-for-a-package items. Perfect for documents, small gifts, or even those oddly-shaped handmade treasures, these sturdy envelopes make shipping simple. Forget packing peanuts; just slip it in and seal! From padded mailers to standard options, find your perfect 9x12 shipping solution and send with ease.
This curated selection of top-rated items helps consumers make informed decisions. The choices are based on comprehensive analysis, considering factors like material durability, design, functionality, and overall value. This ensures users find high-quality options that meet their specific needs, saving them time and effort in their search.
1. 100 White Cardboard Photo Mailers (9x12", Self-Seal, Stay-Flat)
Durable, affordable mailers protect contents; great value!
Protect your valuable photos, documents, and prints with these 100 self-seal 9x12 inch mailers. Made from sturdy 450gsm white cardboard (1.5mm thick, 64g each), these mailers offer superior protection during shipping. Their convenient self-seal design eliminates the need for glue or water, while the included "DO NOT BEND" labels ensure safe handling. Perfectly sized for 8.5x11 inch items like A4 documents, photos, and CDs, these mailers are ideal for photographers, businesses, or anyone needing reliable shipping solutions. The easy peel-and-seal tear strip ensures quick and efficient packaging, making them perfect for high-volume mailing needs.
These 100-pack 9x12 inch self-seal photo document mailers from zmybcpack offer exceptional value and reliability for all your mailing needs. While some users initially perceived them as slightly flimsy, the sturdy construction, proven by hundreds of successful mailings across diverse locations (including Hawaii and overseas military bases), speaks for itself. The adhesive strip, though thin, provides secure sealing, lasting through extensive travel. The generous sizing accommodates various items, and the included "Do Not Bend" stickers add a professional touch. Many users appreciate the convenience of the bulk pack, ensuring a ready supply for frequent or large-scale mailing operations. Although some users add extra cardboard for increased rigidity (easily accommodated within the generous sizing and without significantly impacting mailing costs), the mailers are perfectly adequate for many applications, especially when shipping items with added protection. Overall, these mailers provide a dependable and cost-effective solution for protecting and shipping photos, documents, and prints, making them a highly recommended choice.
- Brand: zmybcpack
- Color: White
- Dimensions: 12.01 x 9 x 0.01 inches
- Manufacturer: zmybcpack
- Material: Paper
- Shape: Rectangular
- Size: 9X12" 100pack
- Weight: 15.78 pounds
- Rate: 4.7 / 629
- Self-sealing design for easy use
- Durable 450gsm cardboard construction
- Large 9x12 inch size fits 8.5x11 inch items
- Shipping photos and prints
- Mailing documents and certificates
- Distributing marketing materials
2. Brown Kraft Self-Seal Envelopes (9x12", 30/pack)
Affordable, sturdy envelopes with convenient self-seal flaps.
- Highly rated
- Sturdiness
- Value for money
- Envelope quality
- Use
- Functionality
- Seal
- Size
Streamline your mailing process with these Columbian 9 x 12 Catalog Envelopes (COLO401). These heavy-duty, 28 lb brown kraft envelopes offer superior protection and privacy for your letter-sized documents, photos, or catalogs. The convenient self-seal closure—a simple peel-and-press design—eliminates the need for moisture and ensures a secure seal. Perfect for flat rate mailings, these top-loading envelopes (30 per pack) are ideal for shipping contracts, registration packets, or 8x10 photos. Their robust construction ensures durability during mailing and storage, making them a practical and efficient solution for home, office, or school use.
These sturdy, self-adhesive envelopes offer exceptional value for various mailing needs. Customers consistently praise their affordability and convenient online purchasing experience, highlighting the fast delivery as a significant plus. The self-sticking closure flap is a standout feature, simplifying the mailing process and ensuring secure closure for important documents, manuscripts, or other materials. While some users noted the use of glue strips instead of clips, the overall consensus points to these versatile envelopes as a practical and cost-effective solution for a range of applications. Their robust construction makes them ideal for sending sensitive items like manuscripts, ensuring safe and reliable delivery.
- Brand: Columbian
- Color: White
- Material: Paper
- Rate: 4.7 / 345
- Self-seal closure for easy and quick mailing
- Heavy-duty 28 lb kraft paper for durability and privacy
- Large 9x12 size for fitting letter-size documents and photos
- Mailing large photos or artwork
- Shipping legal documents or contracts
- Sending oversized invitations or announcements
3. Secure 9x12 Self-Seal Envelopes (100/box)
Durable, secure, and professional—these envelopes impress!
- Highly rated
- Sturdiness
- Value for money
- Adhesion
- Functionality
- Appearance
- Size
- Some controversy about
- Sealability
Protect your sensitive documents with Columbian 9x12 Security Envelopes (COLO930). This 100-envelope box features a patented SimplySafe tamper-evident pull strip, instantly revealing unauthorized access attempts. The security-tinted interior and heavyweight 28 lb white wove paper conceal contents, while the convenient Release & Seal closure provides a clean, moisture-free seal. Ideal for mailing oversized documents like catalogs or legal paperwork, these 9x12 inch envelopes offer superior security and ease of use. Their robust construction and tamper-evident design ensure your information remains confidential and protected throughout transit.
The Columbian 9x12 Clasp Envelopes are a game-changer for anyone needing reliable, high-quality mailing solutions. These heavyweight envelopes, boasting reinforced seams and a secure self-sealing closure, offer unmatched durability for even the bulkiest items – from important documents and promotional materials to delicate photographs and bulky catalogs. The strong adhesive ensures a tamper-evident seal, though a touch of extra adhesive might be needed in some cases. Their bright white finish and professional look make them ideal for business correspondence, conveying a sense of quality and dependability. The versatile design also makes them perfect for organizing paperwork or storing documents, both at home and during travel. With a convenient box of 100, these envelopes offer exceptional value and are a cost-effective solution for personal and professional use alike. Their strength and secure seal guarantee the safe arrival of your contents, making them a top choice for sending important materials nationwide.
- Brand: Columbian
- Color: White
- Material: Paper
- Rate: 4.7 / 793
- Tamper-evident seal
- Security tint
- Easy peel-and-seal closure
- Mailing sensitive legal documents
- Sending confidential medical records
- Transporting important financial statements
4. PackageZoom Poly Mailers: 100 Grey, Self-Seal Shipping Envelopes
Durable, affordable mailers perfect for quick, easy shipping.
- Highly rated
- Functionality
- Size
- Value for money
- Seal
- Some controversy about
- Durability
Streamline your shipping with PackageZoom's 9x12" poly mailers (100-pack). These light grey, self-seal shipping envelopes offer a budget-friendly solution for businesses of all sizes. Their strong adhesive and tear & water-resistant design ensure safe delivery of non-fragile items like clothing, electronics, or beauty supplies. The tamper-evident closure provides extra security, while the opaque material protects contents and enhances brand image. Save time and money by eliminating the need for tape and boxes. PackageZoom's poly mailers are the perfect cost-effective and efficient packaging choice for e-commerce, retail, or direct-to-consumer shipping.
These poly mailers are a fantastic value, offering excellent sturdiness and reliable adhesive for secure shipping. Perfect for a range of items, from small shirts and scarves to larger coats and jackets (especially handy for those using the XL size!), they provide ample protection during transit. Customers consistently praise their ease of use and the impressive speed of delivery, often arriving within a single day with Prime shipping. The thickness is ideal for ensuring safe delivery, while the price point remains highly competitive compared to other suppliers. Although some users noted they might not be suitable for fragile items like glass or jewelry, for most everyday shipping needs—especially books, clothing, and other less delicate items—these mailers consistently deliver on their promise of efficient and reliable packaging. The strong adhesive tape ensures a secure seal, unlike some lesser-quality brands. Overall, these poly mailers are a convenient and cost-effective solution for online businesses and individuals alike.
- Brand: PackageZoom
- Color: Grey
- Dimensions: 10 x 5 x 3 inches
- Manufacturer: PackageZoom
- Material: Polyethylene (PE)
- Shape: Rectangular
- Size: 9x12" / 100 Pcs
- Weight: 1.83 pounds
- Rate: 4.6 / 380
- Self-sealing adhesive for quick and easy closure
- Tear and water-resistant for superior protection
- Budget-friendly and lightweight to minimize shipping costs
- E-commerce businesses shipping non-fragile goods
- Small businesses mailing marketing materials
- Online retailers sending clothing or accessories
5. Aimoh 9x12 Brown Kraft Self-Seal Mailing Envelopes (100)
Superior quality, self-sealing, and a great value!
- Highly rated
- Quality
- Value for money
The Aimoh 9x12 Self-Seal Brown Kraft Catalog Mailing Envelopes (38300) are a premium solution for secure and efficient mailing. These 100 durable, 28lb kraft envelopes offer a robust 9x12 inch size, perfect for large documents, catalogs, magazines, and brochures. Their strong self-seal closure ensures secure delivery, preventing accidental opening and protecting your contents. The thick, woven kraft paper stock provides excellent tamper resistance and privacy, while the self-adhesive strip guarantees a reliable seal. Ideal for both business and personal use, these Aimoh envelopes offer exceptional value and are perfect for direct mail campaigns and professional correspondence.
These 9x12 Self-Seal Brown Kraft Catalog Mailing Envelopes (100-pack) are a game-changer! Users consistently praise their superior quality, highlighting the smooth, strong material and incredibly reliable adhesive – no more licking envelopes! The generous size easily accommodates multiple documents, ensuring professional presentation without the need for folding. The self-sealing feature is a significant time-saver, boosting efficiency for both personal and business use. The sturdy 28lb kraft paper provides excellent protection during transit, and the rich brown color adds a touch of sophistication. Customers appreciate the excellent value for money and the eco-friendly, recyclable nature of the envelopes. While some mentioned the thickness as "medium weight," the overall consensus points to a high-quality product that simplifies mailing and makes a great impression. Whether you're sending catalogs, brochures, important paperwork, or even car financing booklets, these envelopes deliver exceptional performance and convenience.
- Brand: Aimoh
- Color: Yellow
- Dimensions: 12 x 9 x 0.04 inches
- Manufacturer: Aimoh
- Material: Paper
- Shape: Rectangular
- Size: 100 Count
- Weight: 3.86 pounds
- Rate: 4.7 / 3623
- Strong Self-Sealing Closure
- Durable 28lb Kraft Paper Stock
- Large 9x12 Inch Size
- Mailing catalogs
- Sending large documents
- Direct mail marketing