# 9 × 12 in window envelope template & dieline

> 9 × 12 in window envelope dieline. Default size 304.8 × 228.6 mm. Set your size and fold it in 3D free; download PDF, SVG or DXF with Pro.

Canonical: https://dielinemaker.com/dielines/envelope--env-window-9x12

Landscape 304.8 × 228.6 mm document envelope with an editable address opening. Window position is a starting point; align it with your insert. Film and insert are supplied separately. A ready-sized preset of the board envelope. Change the length, width, height, board and options in the editor; the dieline and the 3D preview follow each change.

## Default size

- Inside size: 304.8 × 228.6 mm
- Outside: 304.8 × 228.6 mm
- Flat blank: 328.8 × 516.2 mm
- Manufacturing (score to score): 304.8 × 228.6 mm

## Specifications

| Specification | Value |
| --- | --- |
| Reference | Parametric structure |
| Family | Cards & tags |
| Inside size | Width 304.8 · Height 228.6 mm |
| Size range | Width 90–400 · Height 60–350 mm |
| Parts | One blank |
| Board area | 0.161 m² (about 2 up on a 720 × 1020 mm sheet) |
| Default board | Art paper 170 g (0.16 mm caliper) |
| Board options | SBS white board 300 g, SBS white board 350 g, Kraft board 350 g, Grey-back duplex 350 g, Folding boxboard 400 g, Black-core board 350 g, Art paper 170 g, F-flute micro corrugated, SBS white board 18 pt |
| Good for | 9x12 window envelope, 9 x 12 window envelope, address window, document envelope, envelope, retained slit envelope, curved slit envelope, window envelope, wallet envelope, card envelope |

## Before you choose this template

### Will the 9 × 12 in window envelope dieline fit my product?

Landscape 304.8 × 228.6 mm document envelope with an editable address opening. Window position is a starting point; align it with your insert. Film and insert are supplied separately. The default dimensions in inside-size mode are Width 304.8 mm, Height 228.6 mm. Measure your product and any inserts or wrapping, then set the template size. Check a physical sample with your contents before ordering production.

### Can I change the size and design?

Yes. The supported ranges are Width 90–400 mm, Height 60–350 mm. At the default settings, the editor also exposes Flap shape, Flap depth, Peel & seal strip, Side seal width, Retained slit lock, Address window and 8 more options. Add your own artwork and preview the result in 3D. The template geometry is rebuilt when its dimensions change.

### Which materials can I choose?

The default is Art paper 170 g (0.16 mm caliper). This structure allows SBS white board 300 g, SBS white board 350 g, Kraft board 350 g, Grey-back duplex 350 g, Folding boxboard 400 g, Black-core board 350 g, Art paper 170 g, F-flute micro corrugated, SBS white board 18 pt. Select the stock before checking fit, and ask your converter to confirm the grade and caliper for the intended product.

### Which files can I download?

The template page offers dimensioned PDF, Illustrator (.ai via script), layered SVG and DXF cutting and crease geometry. After adding artwork in the editor, you can export a print-ready PDF and review the bleed, safe areas and dieline layers with your printer.

### Is this dieline free?

Browsing the previews is free, and you can customize the template after signing in with Google. Template and print-file downloads require a Pro or Business plan. The Free plan allows one eligible download every 8 hours; free mockups, renders and videos carry a watermark. See the pricing page for the current plans.

### Can I send the download straight to production?

Use the file as a starting point for a printer or converter review. Confirm the finished dimensions, stock, crease and cutting setup, assembly, bleed and artwork, then approve a physical sample. The 3D preview does not test strength, transit performance or suitability for particular contents.

[Compare plans and downloads](https://dielinemaker.com/pricing)

## Downloads and previews

The dieline downloads as PDF (with dimensions), Illustrator (.ai), SVG (vector, by layer) and DXF (for CAD and cutters). These downloads are part of the Pro and Business plans; the previews below are public.

- Flat preview (PNG): https://dielinemaker.com/dielines/envelope--env-window-9x12/preview.png
- Folded preview (PNG): https://dielinemaker.com/dielines/envelope--env-window-9x12/folded.png
- Customize in the editor: https://dielinemaker.com/create?style=envelope&preset=env-window-9x12
- Open in the 3D Studio: https://dielinemaker.com/studio?style=envelope&preset=env-window-9x12

## Adjustable in the editor

Beyond the size and board, this structure exposes 14 options; the template and 3D preview follow each change.

- Flap shape (3 options)
- Flap depth (mm)
- Peel & seal strip (on / off)
- Side seal width (mm)
- Retained slit lock (on / off)
- Address window (on / off)
- Window width (mm)
- Window height (mm)
- Window from left (mm)
- Window from bottom (mm)
- Window corner radius (mm)
- Thumb notch (on / off)
- Tear strip (on / off)
- Fastener (3 options)

## The board envelope family

The same structure with sizes, boards and options set for a use.

- - [Board envelope](https://dielinemaker.com/dielines/envelope) - 229 × 162 mm
- - [Gift card wallet](https://dielinemaker.com/dielines/envelope--env-c6) - 162 × 114 mm
- - [DL envelope](https://dielinemaker.com/dielines/envelope--env-dl) - 220 × 110 mm
- - [A4 document mailer](https://dielinemaker.com/dielines/envelope--env-c4-mailer) - 324 × 229 mm
- - [Kraft invitation envelope](https://dielinemaker.com/dielines/envelope--env-kraft-invite) - 160 × 160 mm
- - [Photo mailer 5 × 7 in](https://dielinemaker.com/dielines/envelope--env-photo) - 185 × 135 mm
- - [A7 envelope](https://dielinemaker.com/dielines/envelope--env-a7) - 184 × 133 mm
- - [A2 envelope](https://dielinemaker.com/dielines/envelope--env-a2) - 146 × 111 mm
- - [#10 envelope](https://dielinemaker.com/dielines/envelope--env-no10) - 241 × 105 mm
- - [C5 envelope](https://dielinemaker.com/dielines/envelope--env-c5) - 229 × 162 mm
- - [Snap envelope folder](https://dielinemaker.com/dielines/envelope--env-snap-folder) - 324 × 229 mm
- - [String and button envelope](https://dielinemaker.com/dielines/envelope--env-string-tie) - 324 × 229 mm

All 26 board envelope templates are listed under [Cards & tags](https://dielinemaker.com/dielines?category=card).

## Similar structures

Other structures built in a similar way, matched on code family, category, closures and proportions.

- - [Flat framed cover](https://dielinemaker.com/dielines/framed-flat-cover) - DM-FRAMED-FLAT-COVER-01 · 160 × 160 mm · Cards & tags
- - [Board wallet](https://dielinemaker.com/dielines/board-wallet) - ECMA F60.91.00.00 · 120 × 95 mm · Cards & tags
- - [Petal-lock wallet](https://dielinemaker.com/dielines/petal-lock-wallet) - DM-PETAL-WALLET-01 · 120 × 100 mm · Cards & tags
- - [Gift card holder](https://dielinemaker.com/dielines/gift-card-holder) - 102 × 76 mm · Cards & tags
- - [Two-disc pocket folder](https://dielinemaker.com/dielines/disc-pocket-folder) - DM-DISC-FOLDER-01 · 125 × 125 mm · Cards & tags
- - [Flap pocket envelope](https://dielinemaker.com/dielines/flap-pocket-envelope) - DM-FLAP-POCKET-ENVELOPE-01 · 120 × 120 mm · Cards & tags

## Related

- [Cards & tags templates](https://dielinemaker.com/dielines?category=card)
- [9 × 12 in window envelope mockup](https://dielinemaker.com/mockups/envelope--env-window-9x12)
- [How to read a dieline](https://dielinemaker.com/blog/what-is-a-dieline)
- [Inside vs outside box dimensions](https://dielinemaker.com/blog/box-dimensions-inside-vs-outside)
- [All dieline templates](https://dielinemaker.com/dielines)