Deliciously Designed . Perfectly Delivered
Make every mailed document look more professional with custom envelopes made around your brand, insert size, mailing needs, and budget. Print them with your brand colors, logo, address, or special message. Choose the size and style that fit your documents and create a clean look for every piece of mail. Use them for invoices, letters, cards, offers, and company documents.
Tell us what you need and we'll send you
a personalized quote.
Custom Boxes Tech has served packaging buyers since 2002. Our team supports businesses in the USA, UK, and Canada by offering wholesale custom envelopes in tailored sizes, branded printing, practical closure choices, and bulk order planning.
Choose from business envelopes, mailing envelopes, colored stocks, white papers, kraft options, window styles, and several print choices. Our standard turnaround runs from 7 to 12 business days after artwork approval.
Key order options include:
Quantities from 250 to 50,000+ pieces
Popular sizes from A2 to 10” × 13”
Paper choices from about 70 GSM to 120 GSM
1-color, 2-color, and full CMYK printing
25%, 50%, 75%, or full-face print coverage based on artwork
Standard gum and peel-and-seal closure choices
Free design support
Free sample
24/7 customer care
After-sale support
Send your size and quantity to Custom Boxes Tech today and get a fast custom quote for your next envelope order.
Bulk orders work well for offices, retailers, schools, banks, legal firms, healthcare teams, event planners, nonprofits, and marketing campaigns.
CBT can help you match the envelope to the insert instead of making the insert fit a poor size.
Size | Dimensions | Common Use | USA Planning Price per 500 |
|---|---|---|---|
#10 | 4.125” × 9.5” | Bills, letters, statements | $90–$270 |
A2 | 4.375” × 5.75” | Cards, notes | $110–$300 |
A6 | 4.75” × 6.5” | Promotions, cards | $135–$320 |
A7 | 5.25” × 7.25” | Events, premium cards | $150–$350 |
9” × 12” | 9” × 12” | Reports, documents | $180–$360 |
10” × 13” | 10” × 13” | Catalogs, large files | $190–$390 |
Prices serve as planning ranges. Quantity, paper, print coverage, windows, adhesive, freight, and finishing can change the quote.
Strong envelope printing helps your mail show who sent it before the recipient opens it.
Our team checks:
Logo position
Print area
Image quality
Bleed setup
Text spacing
Return address position
Window clearance
Artwork size
This review helps reduce avoidable print issues before production.
Paper choice affects feel, print quality, folding, and daily handling.
A lighter stock works well for routine business use. A heavier stock adds more body for branded mail, cards, events, or premium communication.
Paper Option | Approx. Weight | Best Use | USA Price Range per 1,000* |
|---|---|---|---|
White wove | 70–90 GSM | Office mail | $150–$360 |
Uncoated white | 80–100 GSM | Statements, letters | $170–$410 |
Kraft | 80–110 GSM | Retail, promotions | $190–$460 |
Premium smooth | 100–120 GSM | Events, branded mail | $230–$560 |
*Planning prices only.
Our paper stock options give buyers a practical choice between everyday value and a more premium feel.
Envelope size should follow the insert size, fold style, document count, and mailing method.
The #10 envelopes suit standard business letters. A7 works well for cards. Larger 9 × 12 and 10 × 13 options help protect documents that should stay flat.
Useful size facts include:
#10: 4.125” × 9.5”
A2: 4.375” × 5.75”
A6: 4.75” × 6.5”
A7: 5.25” × 7.25”
6 × 9: 6” × 9”
9 × 12: 9” × 12”
10 × 13: 10” × 13”
Typical stock range: 70–120 GSM
Common printed coverage: 25% to 100%
CBT can also plan custom sizes when a standard format leaves too much space or creates a tight fit.
Events need an envelope that supports the design of the card inside.
For larger orders, bulk wedding envelopes for invitations can keep the same size, paper, logo placement, and return details across hundreds or thousands of pieces.
Available choices may include:
90–120 GSM stock
A6 and A7 sizes
1-color or CMYK print
Printed return details
Gum or peel-and-seal closure
Matching outer and inner formats where required
A correctly placed window can speed up routine mailing when the address already appears on the document.
Our business window envelopes for invoices work well for billing teams, service companies, medical offices, membership groups, and finance departments.
For repeat mailing programs, custom window envelopes for business statements can combine a printed logo with a fixed window position and optional security tint.
Feature | Common Choice | Added Planning Cost per 1,000 |
|---|---|---|
Standard window | Single address window | $20–$60 |
Security tint | Printed inner pattern | $25–$75 |
Peel-and-seal | Release-strip closure | $30–$90 |
Custom window position | Job-specific location | $40–$120 |
These price additions vary by quantity and specification.
A well-sized card envelope keeps the insert secure without making the pack look bulky.
Our printed invitation envelopes with company branding can carry logos, event details, return information, or selected design elements.
Useful specifications include:
A6: 4.75” × 6.5”
A7: 5.25” × 7.25”
Stock: 90–120 GSM
Print: 1 to 4 colors
Artwork coverage: 25%–100%
Order range: 250 to 25,000+ pieces
Fundraising mail needs enough room for giving details while keeping the layout easy to understand.
Our printed donation envelopes for nonprofit campaigns can include organization details, campaign names, giving instructions, return information, or selected check-box fields.
Organizations that run regular appeals can order custom donation envelopes for fundraising drives in repeat quantities to keep size and artwork consistent from one campaign to another.
CBT supports short runs as well as larger annual programs.
Closure style affects packing speed and daily handling.
Standard gum works well for many planned mailing jobs. Peel-and-seal options can make closing faster when staff handles larger quantities.
Useful options include:
Standard gum flap
Peel-and-seal strip
Security tint
Side seam
Commercial flap
Wallet flap
Booklet style
Catalog style
Our team helps match the flap style and closure to the intended use instead of adding features that do not help the buyer.
Higher quantities often lower the cost per piece because setup costs are spread across more units.
Quantity | Typical USA Planning Range | Approx. Cost per Piece |
|---|---|---|
250 | $75–$230 | $0.30–$0.92 |
500 | $90–$390 | $0.18–$0.78 |
1,000 | $150–$600 | $0.15–$0.60 |
2,500 | $220–$1,000 | $0.09–$0.40 |
5,000 | $400–$1,800 | $0.08–$0.36 |
10,000 | $700–$3,000 | $0.07–$0.30 |
25,000+ | Custom quote | Volume based |
These figures help with budgeting. Your actual bulk pricing depends on size, stock, print, coverage, finishing, and delivery location.
Custom Boxes Tech supports buyers across three major markets. Each market may use different paper terms, postal rules, freight costs, and preferred sizes.
For smoother quoting, send:
Finished size in inches or millimeters
Order quantity
Paper weight
Number of print colors
Artwork coverage
Window details
Closure style
Delivery country
Delivery ZIP or postal code
For international jobs, freight and local delivery costs can affect the total more than the printed unit price.
Quality matters most when thousands of pieces need to match the approved order.
Our checks cover:
Finished dimensions
Paper selection
Logo placement
Print alignment
Color setup
Window location
Flap choice
Adhesive style
Quantity
Pack condition
For repeat orders, we can work from approved job details to help maintain a more consistent specification across future runs.
A good envelope should fit the insert, support the brand, match the mailing process, and stay within budget.
Choose the size, quantity, stock, printing, window, and closure that suit your next run. Our team can help with artwork, samples, specifications, and production planning.
Consult with our certified graphics team via support@customboxestech.com today to engineer localized custom envelopes that establish immediate consumer trust.
We create custom packaging that combines premium presentation, smooth ordering process with reliable and dependable delivery for brands that value quality and efficiency.
Packaging Experience Since 2002
Serving the packaging industry since 2002
In-House Manufacturing
in-house production facilities in the USA & Asia
NO MOQ & Flexible Customization
starting with low numbers and full customization
Global Service with Fast Turnaround
07-12 bussiness days all accross the globe
Quick answers to help you get started with confidence.
We offer several high-performance options to secure your sensitive items:
Closure Type | Ideal Application | Tamper-Evident Strength | Adhesive Lifespan |
Peel-and-Seal Strip | High-speed fulfillment | High | 24 Months |
Moisture-Activated Gum | Long-term warehouse storage | Standard | 18 Months |
Reinforced Metal Clasp | Repeated internal routing | Reusable | Indefinite |
Contact us today and let our experienced packaging engineers guide you in your journey to finding the perfect boxes
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