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.
An average size deck is approximately 12 x 20 feet whereas a 16 x 26 foot deck is considered large in comparison to most deck projects. The larger the deck and more difficult in construction equates into more cost.ow long will it take to build a deck? This varies a great deal by the complexity of the project including any mishaps and weather conditions but in general a 12 x 24 foot elevated deck with a staircase and railing should take a carpenter and laborer between one and three weeks to build. 5.