Efficient internal communication is crucial for any organization, making the choice of interoffice and routing envelopes more important than it seems. The right envelopes ensure documents are securely routed and easily tracked, streamlining operations, reducing waste, and maintaining a professional appearance in daily workflow.
- BUILT FOR DAILY OFFICE ROUTING: Designed for interdepartmental use, these envelopes keep documents organized and protected as they move through busy offices, mailrooms, schools, and government buildings
- DURABLE 28 LB KRAFT PAPER: Heavyweight brown kraft stock resists wear and tear, making these envelopes strong enough for frequent handling and long-term reuse
- SECURE STRING & BUTTON CLOSURE: Classic string-and-button design keeps contents safely contained while remaining easy to open and close for repeated access throughout the day
- TRACKING-FRIENDLY DESIGN: Five narrow-ruled columns on each side provide plenty of space for signatures, dates, and routing notes to maintain accountability
- Blue Summit Button and String Envelopes are durably constructed and designed for re-use, crafted with heavyweight 28lb. manila stock paper making these envelopes a great choice for inter-office mailings
- These Interdepartmental Envelopes have a string and button closure and can store documents up to 10" wide by 13" long
- Pre-printed lines alloe users to sign their name and department of origin or receipt
- Space is maximaized with five columns and narrow ruling on these 10x13 office envelopes
- SECURE STRING TIE CLOSURE | Designed for reliable internal delivery, these inter office envelopes with string feature a durable string tie enclosure that keeps documents protected and prevents contents from slipping out during circulation.
- GENEROUS 10X13 INCH CAPACITY | These interoffice envelopes with string 10x13 easily accommodate full-size documents, folders, and multi-page packets, making them ideal 10x13 clasp envelopes for busy offices and departments.
- PREMIUM 100GSM PAPER STOCK | Crafted from sturdy 100gsm paper, these interoffice envelopes offer superior durability over standard options, standing up to frequent handling, routing, and long-term reuse.
- SMARTLY DESIGNED FOR DAILY USE | Thoughtful printing and precise hole punching maximize usable writing space on routing lines, making it easy to track departments, dates, and approvals without clutter.
- Our inter office envelopes with string 9x12 have hole punches on both sides allow recipient and sender to verify contents for your internal mail.
- Easy route envelopes within office - our intercompany envelopes easily support routing inter department mail with pre-printed lines to add name and department for recipient
- Our interoffice mail envelopes offer convenient string-and-button closure for easy access
- Maximized space with 5 columns and narrow ruling on with our inner office envelope 9 x 12
- Durable construction from heavyweight 28 lb. paper stock
- Hole punches on both sides allow recipient and sender to verify contents
- Maximized space with 3 columns for addressing and signing
- Convenient string-and-button closure for easy access
- Two-Sided Five-Column Format
- Convenient String-And-Button Closure For Easy Access
- Envelopes Have Button-And-String Tie Closure That Adds To Their Professional Looks
- Simple High-Quality Inter-office Envelopes That Get The Job Done
- Convenient Bulk Set: includes 25 pcs 10''x13" interoffice envelopes and 25 pcs 9''x12" clasp envelopes, ideal for daily office use; It provides 1-3 months of internal document transfer for small to medium teams, boosting workflow efficiency; The large...
- Reusability and Cost Effectiveness: these 50 interoffice envelopes made from sturdy 180gsm heavyweight brown kraft paper, the strong, environmental friendly construction ensures that these envelopes can be opened and closed dozens of times, reducing long...
- Secure String Tie Closure: each envelope features a traditional string and hole closure system, which keeps documents securely sealed, the design prevents accidental opening, making these brown envelopes ideal for transmitting sensitive materials while...
- Clear Labeling for Easy Organization: with preprinted fields for date, sender, and recipient details, these brown envelopes help streamline document sorting and tracking, this makes internal deliveries more organized and reduces errors in...
- 10 inch x 13 inch/opaque charcoal gray
- Hook and loop closure
- Top Loading/1-1/6 inch gusset
- With letter size outside pocket andpreprinted interoffice routing slip included
- These 10x13 interoffice envelopes with a self seal Redi-Tac closure are reusable, fast & thrifty; made of heavyweight 32 lb kraft paper; 100 per box
- Reusable Redi-Tac closure lets you reseal these yellow envelopes as many times as needed; bye-bye envelopes with strings and metal doodads
- Five columns with narrow signature lines gives each interoffice envelope longevity; use pencil or erasable pen for extended use
- Drilled holes tell you at a glance if papers have been enclosed in these envelopes; a helpful feature for bulk interdepartmental mailings
- BUILT FOR DAILY OFFICE ROUTING: Designed for interdepartmental use, these envelopes keep documents organized and protected as they move through busy offices, mailrooms, schools, and government buildings
- DURABLE 28 LB KRAFT PAPER: Heavyweight brown kraft stock resists wear and tear, making these envelopes strong enough for frequent handling and long-term reuse
- SECURE STRING & BUTTON CLOSURE: Classic string-and-button design keeps contents safely contained while remaining easy to open and close for repeated access throughout the day
- TRACKING-FRIENDLY DESIGN: Five narrow-ruled columns on each side provide plenty of space for signatures, dates, and routing notes to maintain accountability
This article is part of our complete guide Office & School — browse all our comparisons and buying guides.
Last update on 2026-10-14 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Interoffice & Routing Envelopes
Material and Durability
The longevity of an interoffice envelope largely depends on its material. Standard options often include sturdy kraft paper, typically ranging from 24 lb to 32 lb in weight. Heavier paper stock provides greater tear resistance and stands up better to repeated handling and routing through various departments. Consider envelopes with reinforced seams or gusseted sides if you frequently send bulky documents or items, as these features significantly extend their lifespan and prevent premature wear.
Closure Type and Security
Different closure mechanisms offer varying levels of security and reusability. Self-seal envelopes provide quick and easy closure, often preferred for single-use or less sensitive documents. Gummed closures require moistening but offer a more secure, tamper-evident seal, which can be important for confidential materials. For maximum reusability and a distinct look, string-and-button closures are excellent. These durable closures allow envelopes to be opened and resealed many times without compromising the envelope's integrity.
Size, Capacity, and Visibility
Selecting the correct size is essential to accommodate your documents without excessive folding or wasted space. Common sizes include standard letter-size (9" x 12") for basic documents, while larger or gusseted envelopes are available for bulkier reports, catalogs, or multiple files. Ensure the envelope provides ample space for clear routing information. Many envelopes feature pre-printed routing forms with multiple lines for sender, recipient, and date, which enhances visibility and helps prevent misdirection.
Routing Features and Organization
Effective interoffice envelopes are designed for clear, repeatable routing. Look for envelopes with pre-printed routing grids that offer numerous entry lines, allowing for many uses before the envelope needs replacement. The layout should be intuitive and easy to read, with designated spaces for department names, dates, and signatures. Some envelopes also incorporate clear windows or distinct color coding, which can further aid in quick identification and sorting within busy office environments, improving overall organizational efficiency.
