Top 10 Manila Envelopes 9×12 – Clasp Mailing Envelopes

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1. Quality Park

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100 per Box 37890, Storing or Mailing Documents, Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps, 28 lb Brown Kraft, Great for Filing

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Quality Park #ad - Gummed flap: in addition to the clasp closure, these quality park envelopes have a moisture activated secure seal with deep Gumming on the flap to create a permanent seal. The flaps close with full flap gum to endure humid climates to ensure the envelope stays sealed so your contents don't fall out! 9 x 12 size: perfect size for mailing and storing 8-1/2 x 11 sized documents flat when folding is undesirable.

Brown kraft 28 lb stock: perfect for everyday home and business use, Quality Park's clasp envelopes are constructed from heavyweight 28 lb. Reusable clasp: designed for repeated use, school, office, double prong metal clasp is durable and eyelets are reinforced .

Great for home, interoffice or mailing. Packed in 100 count: so many uses means supply is depleted quickly! Conveniently packed in 100 count to reduce frequency of purchasing. Brown kraft stock designed to give contents extra protection during mailing, storage and handling.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height3.75 Inches
Length14 Inches
Weight4 Pounds
Width9.1 Inches
Part NumberQUA37890
Model37890

2. Amazon Basics

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AMZP13, AmazonBasics Catalog Mailing Envelopes, Peel & Seal, Brown Kraft, 9x12 Inch, 100-Pack

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Amazon Basics #ad - 100-pack of 9 x 12 inch catalog envelopes. Durable 28-pound brown kraft material provides privacy and strength. Ideal for mailing catalogs, brochures, booklets, and multi-page documents. Easy-to-seal peel & Seal closure—no moisture needed. Measures 9 by 12 inches each.
BrandAmazon Basics #ad
ManufacturerAmazonBasics #ad
Part NumberAMZP13
ModelAMZP13

3. Mead

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20 per Box 76020, Mead Clasp Envelopes, 9" x 12", Brown Kraft, Office Pak

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Mead #ad - Made in United States. 20 envelopes per box. Heavyweight envelopes feature a clasp closure, in an Office Pak for larger quantity. Brown Kraft material. 9" x 12" size.
BrandMead #ad
ManufacturerMEAAH #ad
Height14.45 Inches
Length0.88 Inches
Weight0.65 Pounds
Width9 Inches
Part Number76020
Model76020
Warrantykkk

4. Amazon Basics

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Peel & Seal, 9x12 Inch, AmazonBasics Catalog Mailing Envelopes, 100-Pack, White

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Amazon Basics #ad - Durable 28-pound white woven paper for quality and strength. Measures 9 by 12 inches each. Ideal for mailing catalogs, booklets, brochures, and multi-page documents. 100-pack of #10-1/2 catalog envelopes. Easy-to-seal peel & Seal closure—no moisture needed.
BrandAmazon Basics #ad
ManufacturerAmazonBasics #ad
Part NumberAMZP15
ModelAMZP15

5. Blue Summit Supplies

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Designed for Secure Mailing, 100 9 X 12 Self Seal Golden Brown Kraft Catalog Envelopes, Oversize Strong Peel and Seal Flap with 28 Pound Kraft Paper- 100 Envelopes

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Blue Summit Supplies #ad - Safe for sensitive documents like tax, legal, and financial documents. Securely holds hefty files during transit due to it sturdy construction and thick 28 LB Kraft Paper.

Allows for organized storage of personal and company documents due to its large size. Provides complete security: your documents are safe from others during transit. Just peel and seal to create a strong lasting seal: No need to worry about your contents failing out during transit even when shipping hefty shipments like 60 sheets of paper or magazines. Perfect size for standard 8. 5’’ x 11’’ letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely. Great for storing receipts, tax returns, monthly financials, magazines, reports and more.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight4.25 Pounds
Part NumberBSS-92588-014

6. Aimoh

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28lb, 9 X 12 Self-Seal Brown Kraft Catalog Envelopes, 100 Count 38300

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Aimoh #ad - 9x12 kraft envelopes; aimoh’s catalog envelopes combine tough 28lb golden kraft paper stock, strong self-sealing SELF-SEAL Closure for the best catalog envelopes on the market, perfect for large documents and all business correspondence. Durable multi-purpose; ideal for mailing catalogues, magazines, documents, direct mail, promotional material, brochures and more, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information.

9x12 self-seal kraft envelopes; ideal for everyday business use and professional mailings, each box of our premium 9x12 mailing envelopes with the peel and seal closure provide great value 100 envelope supply, for the best value on the market! Self adhesive seal; aimoh's 9 x 12 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing thicker catalogues, brochures and magazines.22

28lb stock; manufactured from tough, the brown kraft material will insure privacy of the envelopes contents, woven paper extends the tampering resistance of this envelope, durable Construction like 28lb paper stock, the durable, standing up to normal postal wear and tear without damage, .
BrandAimoh #ad
ManufacturerAimoh #ad
Weight3.9 Pounds
Part Number38300

7. Mead

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Clasp, 9" x 12", Brown Kraft, 100/Box CO790, Mead Envelope

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Mead #ad - Extra heavy-duty opaque 32 lb. Brown kraft material provides privacy of contents. Durable multi-purpose envelope; dual purpose seal allows for multiple uses; use the moisture activated gummed seal for mailing or the strong metal clasp for repeated use and storage purposes. 9 x 12 inches; 100 envelopes per box.
BrandMead #ad
ManufacturerMead #ad
Height14.88 Inches
Length3.75 Inches
Width9.25 Inches
Part NumberCO790m
ModelCO790m

8. Quality Park

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Heavy 28-lb Paper, for Mailing, Quality Park 9" x 12" Self-Seal Catalog Envelopes, 100 Per Box QUA44562, Brown Kraft, Organizing and Storage

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Quality Park #ad - Quality park 9" x 12" self-seal catalog envelopes, organizing and Storage, Brown Kraft, for Mailing, heavy 28-lb Paper, 100 Per Box QUA44562.
BrandQuality Park #ad
Manufacturer0 #ad
Height2.9 Inches
Length12.2 Inches
Weight1 Pounds
Width9.4 Inches
Part Number44562
Model44562

9. Aimoh

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Security Tinted, Ultra Strong Quick-Seal, 9 x 12 inch 38100, 100 9 x 12 SELF Seal Security White Catalog Envelopes, 28lb

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Aimoh #ad - White 28lb stock; perfect for everyday business use, aimoh’s 9x12 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear and use high quality, white 28lb stock for a professional finish.

100 9 x 12 catalog envelopes in every pack for a long lasting supply, easy bulk mailing and everyday business correspondence! For 8. 5x11 documents; large 9x12 size and strong quick-seal closure security tinted envelopes, perfect for photos, catalogs, thicker, larger documents and other business mailings. Security tint pattern; ideal for secure business mailing and sensitive correspondence, security tint pattern to protect contents, each 9x12 envelope contains a super secure, information and data when mailing.9

9x12 catalog envelopes; aimoh’s white 9x12 security envelopes combine a professional security tint pattern, large size for business documents and premium quality for the best 9x12 envelopes on the market.
BrandAimoh #ad
Height2.5 Inches
Length9 Inches
Weight4.06 Pounds
Width12 Inches
Part NumberFBA_38100
ModelFBA_38100

10. EnDoc

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9x12 – Brown Kraft Catalog Envelopes with Clasp Closure & Gummed Seal – 28lb Heavyweight Paper Envelopes for Home, Office, Business, Legal or School Pack- 9 x 12 Inch 15 Pack, Clasp Envelopes

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EnDoc #ad - Double seal design – offers reliable security for personal & Professional Mailing; Sturdy Metal Dual Prong Clasps & Gummed Seals w/ Tough Adhesive Glue. Safe for storage – ideal 9 by 12 size is perfect for both mailing & more; Buy in Bulk & Storing Important Paperwork, Stamps, Craft Projects, Dies & Save Big.

9x12 clasp envelope set – pack of 15 single reusable envelopes serves a Variety of Small & Large Documents for Home, Office, Business, Legal & School. Catalog orientation – classic open end style enables fast, pamphlet, Coupon, Convenient Stuffing for Legal Letter, Magazine & Other Common Mailers. Made in usa, heavy duty paper – extra strong, durable 28lb standard brown kraft envelopes proudly made right here in the united States Provides Confidential Protection & Exceptional Rip, Tear & Puncture Resistance - Thank you for supporting American manufacturing!.
BrandEnDoc #ad
ManufacturerEnDoc #ad
Part Numberclasp15