Letters and invitations don't typically mail themselves. That's why we offer help in providing matching envelopes for many Wausau Paper product lines through envelope converters - in the majority of standard sizes, including:

No. 10 Business Envelope Square Flap 4 1/8" x 9 1/2"
No. 10 Business Envelope Commercial Flap 4 1/8" x 9 1/2"
A7 Announcement Envelope 5 1/4" x 7 1/4"
A6 Announcement Envelope 4 3/4" x 6 1/2"
A2 Announcement Envelope 4 3/8" x 5 3/4"

Ask your retailer or converter about envelopes for our Astrobrights®, Astropaque™, Astroparche®, Royal Fiber®, Royal Linen®, Royal Laid®, Royal Marble®, Royal SilkPlusTM, and Royal Bond® papers.