Properly Sized Wedding RSVPs Are An Important Consideration

In this video, we answer a very commonly asked question from Jami in Kentucky:

How big should my wedding response items be? Is there a standard size?

Although there is no response size rule set in stone, we suggest two standard response card & envelopes sizes and three popular response item choices. Ultimately the final choice is yours and should depend upon your wedding invitation design, amount of text required & budget.

1. Most Common & Smallest Mailable Combination

In our experience the 3 1/2 x 4 7/8 cards matched with 3 5/8 x 5 1/8 envelopes is the most common card & envelope size used for wedding rsvp’s. Throughout our website we commonly refer to this size as A4. Due to postal requirements A4 cards must be placed inside of envelopes and require standard United States postage.

Important If you are located or mailing from outside of the United States, consult the postage requirements of your specific country.

2. If You Want More Room, This Size Is For You

Slightly larger than A4, the other size for RSVP cards & envelopes is an A2 – 4 1/4 x 5 1/2 card & 4 3/8 x 5 3/4 envelope. This size does not mandate a mailing envelope, but when placed inside of an envelope, A2 cards require standard United States postage.

Important: If you are located or mailing from outside of the United States, consult the postage requirements of your specific country.

3. Postcard Response (A2) – Eco-Friendly & Economical

A third, and increasingly popular, response option is to use a response postcard that doesn’t require an envelope.

This option is both eco-friendly and economical, as no additional envelope is required, and postcard stamps are a fraction of the price of a standard USPS stamp.

If you are interested in using a postcard response, you should know that the United States Postal Service has specific guidelines for postcards, outlined below.
You should also know that A2 cards fit within all of these guidelines – a much simpler detail to recall!

USPS Postcard Guidelines

• Rectangular Card
• At least 3.5 inches high x 5 inches long x 0.007 inches thick
• No more than 4.25 inches high x 6 inches long x 0.016 inches thick

Shop Standard RSVP Envelopes

A1 Envelope 3 5/8 x 5 1/8 - LCI Radiant White $9.00per 50 Pack	A1 Envelope 3 5/8 x 5 1/8 - Stardream Silver $15.50per 50 Pack	A1 Envelope 3 5/8 x 5 1/8 - Recycled Astrolite $10.50per 50 Pack	A1 Envelope 3 5/8 x 5 1/8 - Aspire Petallics Silver Ore $15.00per 50 Pack
A1 Envelope 3 5/8 x 5 1/8 - Colors Wedding White Smooth $13.50per 50 Pack	A1 Linen Envelope 3 5/8 x 5 1/8 - LCI Natural White $10.50per 50 Pack	A1 Envelope 3 5/8 x 5 1/8 - Colors Vinum Smooth $13.50per 50 Pack	Old World Envelope 3 5/8 x 5 1/8 - Wedding White Smooth $11.50per 50 Pack
A1 Envelope 3 5/8 x 5 1/8 - Poptone Gumdrop Green $12.00per 50 Pack	A1 Envelope 3 5/8 x 5 1/8 - Woodgrain Tindalo $14.50per 50 Pack	Old World Envelope 3 5/8 x 5 1/8 - Curious Violette $11.50per 50 Pack