Oversized Postcards. Oversized postcards give you the most impact for your mailing campaigns. Our 6 x 11â and 8.5 x 11 postcard sizes represent a practical solution for companies that need all the space that postal regulations will allow. Restaurant owners, for instance, find these larger sizes invaluable for sending out their menus to local customers.
Pond Size And Depth. by Tom Burton. Once the where is decided, we need to determine size and depth. An ideal pond for the average hobbyist is between 23 and 25 feet long by 12 to 13 feet wide and 3 to 4 feet deep.
This size pond can accommodate 15 to 20 mature fish (24 to 28 inches) giving them plenty of room to exercise and, will not look overstocked and crowded. Hereâs how we calculate the volume of water in this pond: Length x width x depth = cubic feet x 7.5 gallons per cubic foot = volume in gallons. So, 25 x 13 x 3 x 7.5 = 7312 gallons. However, this is only an approximate figure as the pond will not normally be a perfect rectangle and the shape may be more freeform.