How long mail takes is going to depend on many factors along the way. Many factors, indeed, though with regard to how long does priority mail take, the answer is, not long. In fact, the United States Postal Service says your package or envelope will arrive within two days.
Both the 2009 IRC and the DCA6-09 allow #2 southern pine 2x10s to span 13 feet 1 inch at 24 inches on-center at a design load of 50 psf. That means these joists can span the 12-foot depth of the deck, and the beam can be located at the perimeter. Nine joists will be needed for the 16-foot width.
Two-by-six and 2x8 lumber is too heavy to hold steady. To make a lot of measurements quickly, strap the level to the 2x4 with duct tape or an elastic cord. For jobs where absolute accuracy isn't essential, like digging slopes in trenches, use an inexpensive line level (Photo 2).Hook it directly onto a strong string, like nylon mason's line.ombining a straight board and a 2-ft. level is a good yet inexpensive way to level over shorter distances. For tasks like laying out deck beam heights (Photo 1), set your level on top of a perfectly straight 2x4 to accurately extend its reach.