Short answer: for laser and QuickBooks checks you want double window envelopes, 8 3/4 by 3 5/8 inches, so the company name and payee address on the check show through the windows. Bank Checks Plus sells 250 for $37.28 and Carousel Checks 250 for $44.00; self-sealing versions start at $43.49. For personal-size laser checks, Carousel’s wallet check envelopes cost $18.99 for a pack of 150, and its #10 security envelopes cost $4.50 for 50. Prices checked October 20, 2026.
Shop check envelopes at Carousel Checks →
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Types of check envelopes
| Envelope | Size | Made for | From |
|---|---|---|---|
| Double Window Envelopes | 8 3/4 x 3 5/8 in. | Top laser and voucher checks | $37.28 for 250 |
| Double Window Self-Sealing Envelopes | 8 3/4 x 3 5/8 in. | Top laser checks, flip and seal | $43.49 for 250 |
| Patriot Software Double Window Envelope | 8 3/4 x 4 1/8 in. | Checks printed from Patriot Payroll | $8.99 for 50 |
| Wallet Check Envelope | 6 3/16 x 3 1/2 in. | Personal-size laser checks | $18.99 for 150 |
| #9 Security Envelope | 3 7/8 x 8 7/8 in. | Mailing checks and bills | $5.50 for 50 |
| #10 Security Envelope | 4 1/8 x 9 1/2 in. | Mailing checks and documents | $4.50 for 50 |
Double window envelopes
Carousel and Bank Checks Plus sell the same Double Window Envelope and call it the perfect laser check companion. The top window shows your company information or logo, and the bottom window shows the payee’s mailing address, so nobody hand-addresses an envelope. Each envelope has a security print lining and a snug fit that keeps the address from sliding out of view. It measures 8 3/4 by 3 5/8 inches, each window is 3 1/2 by 7/8 inches, and the staggered windows are 13/16 inch apart.
| Double Window Envelopes | Bank Checks Plus | Carousel |
|---|---|---|
| 250 | $37.28 | $44.00 |
| 500 | $55.92 | $64.00 |
| 1,000 | $104.15 | $121.00 |
| 2,500 | $236.16 | $302.50 |
| 5,000 | $434.91 | $605.00 |
Bank Checks Plus is cheaper at every quantity. Order links: Bank Checks Plus Double Window Envelopes and Carousel Double Window Envelopes.
Self-sealing double window envelopes
The self-sealing version has the same size, windows and security lining, with an easy flip and seal closure. It is the faster choice when you mail a stack of checks at once.
| Self-sealing | Bank Checks Plus | Carousel |
|---|---|---|
| 250 | $43.49 | $50.50 |
| 500 | $74.57 | $73.50 |
| 1,000 | $136.72 | $139.50 |
| 2,000 / 2,500 | $248.59 (2,000) | $333.50 (2,500) |
| 5,000 | $609.06 | $666.50 |
Bank Checks Plus wins at 250 and 1,000; Carousel is a dollar cheaper at 500. Order links: Bank Checks Plus Self-Sealing and Carousel Self-Sealing.
Envelopes for QuickBooks checks
Top (voucher style) laser checks printed from QuickBooks and similar software put the payee address where the bottom window of a double window envelope shows it, which is why these envelopes are sold as QuickBooks check envelopes. Fold the sheet so the check is on the outside and the address lines up with the bottom window. Need the checks? Carousel’s Blue Safety top laser checks cost $69.50 for 250, and Bank Checks Plus sells 250 for $56.49. Compare formats in our laser checks guide and QuickBooks voucher checks guide.
Running Patriot Payroll? Carousel’s Patriot Software Double Window Envelope is a little taller (8 3/4 by 4 1/8 inches), with a moisture seal on 24 lb paper: $8.99 for 50, $16.99 for 100, $65.00 for 500 and $124.00 for 1,000.
Compare double window envelopes at Bank Checks Plus →
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Wallet check envelopes
Carousel’s Wallet Check Envelope (6 3/16 by 3 1/2 inches) is designed to fit personal-size laser checks, the 3 per page wallet checks you print from software. It has a tinted interior lining to keep the check private, a fully gummed moisture seal and a laser compatible window film.
| Wallet check envelopes | Carousel | Bank Checks Plus |
|---|---|---|
| Pack of 150 | $18.99 | $23.61 |
| 300 | $33.99 | $42.25 |
| 600 | $62.99 | $78.30 |
| 1,000 | $99.99 | $124.29 |
| 2,500 | $245.99 | $305.77 |
| 5,000 | $399.99 | $497.19 |
Here Carousel is cheaper at every quantity (Bank Checks Plus listing). Printing your own checks on blank paper? See our blank check stock guide.
#9 and #10 security envelopes
For handwritten checks, bill payments and documents, Carousel sells #9 and #10 security envelopes with a tinted interior lining that keeps the contents private and a fully gummed moisture seal on 24 lb paper. A #9 envelope (3 7/8 by 8 7/8 inches) fits inside a #10, which is why bills often include a #9 return envelope.
| Quantity | #10 (4 1/8 x 9 1/2 in.) | #9 (3 7/8 x 8 7/8 in.) |
|---|---|---|
| 50 | $4.50 | $5.50 |
| 100 | $7.50 | $9.00 |
| 500 | $38.50 | $43.00 |
| 1,000 | $77.00 | $86.00 |
| 10,000 | $660.00 | $703.00 |
Order links: Carousel #10 Security Envelope and Carousel #9 Security Envelope. A standard personal check, 6 by 2 3/4 inches, fits either one.
Which envelope fits your checks
- Top laser or voucher checks (QuickBooks, Quicken): double window envelopes, gummed or self-sealing.
- Checks from Patriot Payroll: the Patriot Software double window envelope.
- Personal-size laser checks (3 per page wallet): wallet check envelopes.
- Handwritten personal or business checks: #9 or #10 security envelopes. Ordering new checks too? Carousel sells 100 Blue Safety checks for $20.00.
Tips for mailing checks safely
- Use a security envelope or a double window envelope with a security lining, so the check and account numbers are not readable through the paper.
- Take outgoing checks into the post office instead of leaving them in an unlocked mailbox; Harland Clarke’s check-fraud advice says the same and adds: use gel pens and keep your checks in a safe place.
- Line up the address with the window before you seal the envelope, and check that the amount and payee are hidden.
Stop check washing too: fill in mailed checks with a uni Super Ink check writing pen ($3.00 at Carousel Checks, checked October 20, 2026), and see our check washing guide for high security checks and USPIS mailing tips.
How to order check envelopes and delivery
- Match the envelope to your check format from the list above.
- Pick the quantity; bigger packs cost less per envelope.
- Add them on their own or to a check order, choose delivery and pay.
Delivery: Carousel lists Next Day Air (1 to 2 business days), 2nd Day Air (2 to 3), Ground (2 to 5), Trackable (3 to 7) and USPS Priority (7 to 10 business days) for envelopes, plus processing time. For matching deposit tickets and registers, see our deposit slips and check accessories pages.
Value Priced Personal Checks
Browse hundreds of personal check designs and current deals, from classic and floral to scenic and photo styles, all shipped fast from a trusted printer.
Check envelopes: frequently asked questions
What envelopes fit QuickBooks checks?
Double window envelopes, 8 3/4 by 3 5/8 inches, made for top (voucher style) laser checks. The top window shows your company information and the bottom window shows the payee address.
What size is a double window check envelope?
Carousel and Bank Checks Plus list their Double Window Envelopes at 8 3/4 by 3 5/8 inches, with two 3 1/2 by 7/8 inch windows staggered 13/16 inch apart.
Where can I buy check envelopes?
Online from check printers. Carousel Checks sells double window, self-sealing, Patriot Software, wallet check and #9 and #10 security envelopes, and Bank Checks Plus sells double window, self-sealing and wallet check envelopes.
How much do double window envelopes cost?
On October 20, 2026, Bank Checks Plus listed 250 for $37.28 and 1,000 for $104.15, and Carousel listed 250 for $44.00 and 1,000 for $121.00. Self-sealing versions started at $43.49 for 250.
What envelope fits personal-size laser checks?
A wallet check envelope. Carousel sells one that measures 6 3/16 by 3 1/2 inches, designed to fit personal-size laser checks, at $18.99 for 150.
What is a security envelope?
An envelope with a tinted interior lining that keeps the contents private. Carousel sells #10 security envelopes from $4.50 for 50 and #9 security envelopes from $5.50 for 50.
Related guides
- Laser checks
- Blank check stock
- QuickBooks voucher checks
- Deposit slips
- Check accessories
- How to reorder checks online
- Cheapest checks 2026
- Check companies compared
Affiliate disclosure: GetBankChecks.com is an independent guide, not a check printer. Some links are affiliate links, and we earn a commission if you buy through them, at no extra cost to you. Prices, codes and designs change, so check them on the merchant’s site before you pay.