This will give you an overview of how to make a sturdy wooden deck inside your apartment. Yes, you read that right, *inside your apartment*. We didn't have enough common area space, so we decided that this was the way to get more - build a deck out over our entry stairwell. It was really wasted before, so just like the wetlands in the Bay area, we "reclaimed" some space....
Step 1: Rule #1: Get your roommates to do all of the hard work
That's Nathan, chiseling a piece to fit. And in the second picture, he's attaching 2x8 boards to the 2x8 pieces that we sunk into the wall with masonry bolts. The third shot is from earlier, when we had only attached the 2x8 to the wall. Go Nathan!
The long pieces are hung at the ends with sheet-metal braces.