Take a look at how thick your steaks are. The thickness is one of the deciding factors of cooking time. Common measurements are 3/4 inch, one inch, one and a half inch and two inches thick. Grill thicker steaks on a lower temperature; the thicker the steak, the lower the heat you'll use.
The maximum dimensions for a carry-on bag are 9 inches x 14 inches x 22 inches (22 cm x 35 cm x 56 cm), including handles and wheels.
Many luggage stores sell suitcases described as 'carry-on', but these suitcases are sometimes larger than the size most airlines will accept. The safe maximum size is 45, in the form of a 22 x 14 x 9 bag. Some airlines allow up to as much as 55, but most do not. Not only do luggage stores and manufacturers not always tell you if their bag is legally sized or not, but they also frequently mis-measure their bag.