CHURCH OFFERING ENVELOPES. Every Sunday Church Offering and pew envelopes. Dollar bills and checks fit easily in these 6 1/4 x 3 1/8 inch envelopes with easy open flap. Space on the front for Dollar Amount Offering, Building, Missions, Ministries. Envelopes come in packs of 200. Sterling Gifts design. Custom versions with Church name and modifications available at custom printing prices.