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Commercial # Dimensions (inches) Max Enclosure Size (inches) Dimensions (Millimeters) Max Enclosure Size (Millimeters)
5 3-1/8 x 5-1/2 2-7/8 x 5-1/4 79 x 140 73 x 133
6-1/4 3-1/2 x 6 3-1/4 x 5-3/4 89 x 146 83 x 146
6-3/4 3-5/8 x 6-1/2 3-3/8 x 6-1/4 92 x 165 86 x 158
7 3-3/4 x 6-3/4 3-1/2 x 6-1/2 95 x 171 89 x 165
8-5/8 3-5/8 x 8-5/8 3-3/8 x 8-3/8 92 x 219 86 x 213
9 3-7/8 x 8-7/8 3-5/8 x 8-5/8 98 x 225 92 x 219
10 4-1/8 x 9-1/2 3-7/8 x 9-1/4 105 x 241 98 x 241
11 4-1/2 x 10-3/8 4-1/4 x 10-1/8 114 x 264 108 x 257
12 4-3/4 x 11 4-1/2 x 10-3/4 121 x 279 114 x 273
Announcement Envelope # Dimensions (inches) Max Enclosure Size (inches) Dimensions (Millimeters) Max Enclosure Size (Millimeters)
A-2 4-3/8 x 5-3/4 4-1/8 x 5-1/2 111 x 146 105 x 140
A-6 4-3/4 x 6-1/2 4-1/2 x 6-1/4 114 x 165 114 x 159
A-7 5-1/4 x 7-1/4 5 x 7 133 x 184 127 x 180
A-8 5-1/2 x 8-1/8 5-1/4 x 7-7/8 140 x 206 133 x 200
A-9 5-3/4 x 8-3/4 5-1/2 x 8-1/2 146 x 222 140 x 216
A-10 6 x 9-1/2 5-3/4 x 9-1/4 152 x 241 146 x 235
Booklet Envelope # Dimensions (inches) Max Enclosure Size (inches) Dimensions (Millimeters) Max Enclosure Size (Millimeters)
6 x 9 6 x 9 5-3/4 x 8-3/4 152 x 229 146 x 222
6 x 9-1/2 6 x 9-1/2 5-3/4 x 9-1/4 152 x 241 146 x 235
6-1/2 x 9-1/2 6-1/2 x 9-1/2 6-1/4 x 9-1/4 165 x 241 159 x 235
7-1/2 x 10-1/2 7-1/2 x 10-1/2 7-1/4 x 10-1/4 191 x 254 184 x 245
9 x 12 9 x 12 8-3/4 x 11-3/4 229 x 309 222 x 279
10 x 13 10 x 13 9-3/4 x 12-3/4 254 x 330 229 x 305
10 x 15 10 x 15 9-3/4 x 14-3/4 254 x 381 229 x 356
Collection Envelope # Dimensions (inches) Max Enclosure Size (inches) Dimensions (Millimeters) Max Enclosure Size (Millimeters)
#6-1/4 3-1/2 x 6-1/4 3-1/4 x 6 89 x 159 83 x 152
#6-3/4 3-5/8 x 6-1/2 3-3/8 x 6-1/4 92 x 165 86 x 159
#9 3-7/8 x 8-7/8 3-5/8 x 8-5/8 98 x 225 92 x 219