The 7 Best 9x12 White Envelopes (2023 reviews)

We consider a 9x12 white envelope to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Ampad 9x12 White Envelope READ REVIEW

Best For sending confidential documents: Buy: blue Summit supplies 9x12 White Envelope READ REVIEW

Best For Quick sealing: Buy: Valbox 9x12 White Envelope READ REVIEW

Best For Mailing things: Buy: Columbian Envelopes 9x12 White Envelope READ REVIEW

Best For Mailing business materials: Buy: ACSTEP 9x12 White Envelope READ REVIEW

Best value Security Envelope: Buy: lureme 9x12 White Envelope READ REVIEW

Best Kraft Envelope: Buy: Burasari 9x12 White Envelope READ REVIEW

Best Overall: Ampad 9x12 White Envelope

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Here, we present envelope that manages to win our hearts. It's the ampad 9x12 white envelope and it's widely considered as one of all-around great envelope you can buy. This larger than letter-sized envelope allows you to send documents flat without folds and creases. The Envelopes are very sturdy and easy to open. The adhesive is strong enough and seals properly. It is perfect for unbound brochures or paper.

The Ampad Fastrip security catalog envelopes have a peel & seal closure that firmly adheres without applying moisture—a welcome time saver for bulk mailings. The sticky part of the flap is close to the edge so there's no loose edge waiting to catch on something. The envelope does have the blue box print on the inside. These are well made and hold up well. It is great for anything that you need to protect.

• Flaps prone to popping up due to poor quality adhesive
• Very handy to have the "zip" strip when you are mailing lots of envelopes
• Has an easy remove and strong glue
• Fits about 20 pieces of standard paper

Best For sending confidential documents: blue Summit supplies 9x12 White Envelope

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Not everyone likes to purchase envelope for their daily usage, but the blue summit supplies 9x12 white envelope would be an anomoly. The 9x12 self adhesive envelopes are great,Easy to use. They are of excellent quality, heavy paper and secure seams. They are constructed with stable seam down center back and bottom closure. There are enough of those spots, and they're large enough where they could accidentally be opened if they were to catch on something during handling.

The paper is pleasant surfaced to write on smoothly for good presentation. They are easy to use and the adhesive actually works. It is performing quite well additionally comes in a box with the flaps down.

• Good brand reputation
• Good investment for long term

Best For Quick sealing: Valbox 9x12 White Envelope

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The valbox 9x12 white envelope should be able to handle its purpose and duties with ease. Valbox thick paper catalog envelopes allow you to print with your laser or inkjet printer without bleeding ink out or going ink fuzzy. It is easy to peel and seal with a strong flap adhesive, no licking of glue or water to moisten when working with multiple mailings. The adhesive is good, it is possible to re-open and add more to the envelope if need be.

These envelopes are not too thin or flimsy. You can run these through your laser or inkjet printers without bleeding ink out or going ink fuzzy. It is very convenient to keep organized. It is perfect for standard letter size papers, business documents, photographs, contracts, magazines and more without folding.

• Not too flimsy or too rigid
• Good firm quality and no more licking
• Nice white color and seal well

Best For Mailing things: Columbian Envelopes 9x12 White Envelope

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Compared with other envelope in this category, the columbian envelopes 9x12 white envelope has a convenient design. These are good quality envelopes made out of clear white paper and with a very handy no moisture required ceiling flap. It's also a good option for document mailing. The envelopes are a nice professional white on the outside and are tinted enough on the inside with a crosshatch pattern that's reminiscent of a check security pattern, to keep your inside documents safe from prying eyes. It's cardboard, so it's recyclable, all good there.

It's a good option for document mailing.

• Security interior, sturdy construction, tamper sealing, with easy to open pull tab
• Good brand reputation

Best For Mailing business materials: ACSTEP 9x12 White Envelope

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The acstep 9x12 white envelope's material feels more premium than its price would suggest. These envelopes have great adhesion, with an easy peel-and-stick closure. The paper they are made from is about the same thickness as 20lb. It has a peel off strip for adhesion. Each envelope is 5 inches by 7 inches in size and has a peel-and-stick seal on each. It will work for basic light mailings.

This is just an envelope, but it is made well and has the self adhesive closure feature that is nice. The self-sealing is excellent and very strong. These are a perfect size for some cards.

• A fantastic set of 100 self-sealing envelopes
• Thin, strong adhesion, and priced correctly
• One of the new comers and featured product

Best value Security Envelope: lureme 9x12 White Envelope

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These envelopes are great for mailing large documents, like catalogs, annual reports, brochures, magazines, and invitations. The adhesive strip is wide and produces a secure closure. It protects privacy, secure business mailing and sensitive information.

The sturdiness of the envelope is very good and is the privacy printing on the interior of the envelope. It provides extra security to the contents. The interior of the envelopes is covered with a security tint that protects privacy, secure business mailing and sensitive information.

• Good quality product that provides extra security to the contents
• One of the new comers and featured product

Best Kraft Envelope: Burasari 9x12 White Envelope

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The burasari 9x12 white envelope should be able to handle its purpose and duties with ease. Mailing envelopes have advanced printing technology and a windowless design so you can't see anything in the envelope even when you put them in the light. It is made of high-quality white paper. Since the peelable strip protects the adhesive from dust, it can be used for a long time and is your premium choice.

You can use it for weddings, birthdays, parties, and graduations to store invitations, greeting cards. It is perfect for protecting confidential information. You can also use it to keep photos, CDs, etc.

• You can prepare some mailing envelopes in your office, school, home, etc
• Mailing envelopes are securely colored and have a windowless design
• Good investment for long term