Flat Envelopes

Catalog: 9" x 12"
Width = 9"   Length = 12"

#10 Regular: 4 1/8" x 9 1/2"
Width = 4 1/8"   Length = 9 1/2"

Expansion Envelope: 9 1/2" x 13" x 2"
Width = 9 1/2"   Length = 13"
Thickness = 2"

Measure width and length the same as shown on the Flat envelopes, using the shorter measurement as the width and the longer measurement as the length.

When measuring the Gusset Edge, measure the distance from the fold of the flap to the first score line at the bottom.

If the flat size is also requested, measure the gusset edge from the fold of the flap to the actual bottom edge of the unexpanded envelope.

An expansion envelope will have a 3rd measurement which is the thickness that the envelope expands to.

Gusset Edge: The area on the sides of an envelope that allow the envelope to expand.

How to Measure Window Size:

Measure: Height x Width
First measurement is the height.
Second measurement is the width.

When measuring, have flap at top.

Standard Window Size: 1 1/8" x 4 1/2"
Height = 1 1/8"   Width = 4 1/2"
Placement:
From Left = 7/8"
From Bottom = 1/2"

Placement of Window:

Measure from left edge of envelope to left edge of the window.
Measure up from bottom edge of envelope to bottom edge of window.