Originally Posted by jkski
The actual deck height is actually more like 10 off the grade however, with roughly 4 foot of post going in the ground and another 4' above the decking to act as support for the railing, the 20 foot posts come into play. The end of the deck will be two 2x10's sandwiched to act as the beam with the inner one notched into the 6x6 post. The 2x10 joists will hang from the ledger board and extend out 14' to hang from the beam on the largest portion of the deck (14'x22').
As for the railing, I have not yet decided what I am going to use however I do know that in place of balusters I will be running stainless cable horizontally in the proper spacing as not to impede the view from inside. I am thinking the top railing will be something simple and flat that can easily support a wide based drink (frosted beer mug!)
Are you sure the cable can be run horizontally? Here, if a deck or porch is more than about 3' above grade, it can't be horizontal because someone could use it to climb up and fall over the railing. Also, any balusters can't be more than about 3-1/2"-4" apart, so a small child can't get their head stuck between them and the bottom horizontal rail can't be more than about 4" above the decking, for the same reason. If it's more than about 6", a small child could crawl under and fall off.
I know why you want to use the stainless cable- it looks great. I'd like to use it, too, but it doesn't meet code. I'd hate to read that someone fell from the deck.