Wavebreakmedia Ltd/Wavebreak Media/Getty Images. Reps and sets are terms used in weight training exercises. They differentiate between the numbers of lifts that are done in quick succession and the number of times the series is repeated during an exercise session. A rep, or repetition, is the actual lifting and lowering of a a weight.
Standard door sizes start at 1 foot 6 inches and are offered at 2-inch increases to 3-feet wide. Fitting with standard door openings, stock door heights are 6 feet 8 inches; 7 feet; and 8 feet. If you live in an older house or have an unusual door opening, there are manufacturers who offer custom sizes. Doors are also available in a variety of colors.
Metric standard door sizes. Metric sized internal doors are becoming increasingly popular and are most commonly used in Scotland and Europe. The main difference being an increased door height of 2040mm and door thickness of 40mm. 2040 x 526/626/726/826/926 x 40mm.