Unfortunately, bathroom ventilation fans often are set up so that they exhaust air to the space between ceiling joists, especially if the bath is located on a lower level toward the middle of the house.
The United States Postal Service defines a postcard as: rectangular, at least 3 1â2 inches (88.9 mm) high Ã 5 inches (127 mm) long Ã 0.007 inches (0.178 mm) thick and no more than 4 1â4 inches (108 mm) high Ã 6 inches (152.4 mm) long Ã 0.016 inches (0.406 mm) thick.
5.5 x 8.5 and 6 x 9 postcards not only give your designs some âbreathing space,â but they also provide plenty of room for your marketing copy. The other benefit of these sizes is that they are not as costly to print or mail as oversized postcards but can still pack quite a marketing punch!