Nail the 2x4 frame together as shown with 16D galvanized nails. Screw the deck boards down with galvanized deck screws. Cut the last 2x6 to allow for the post. A short post goes in the fourth corner and does not come threw the deck. This deck section is a little different, as the steps attach to it and requires one more post.
Frame is the same as the prior section, see drawing at left.
Cut one of the 2x6s to allow for post . The short post goes in the fourth corner were no post extends threw the deck. You might want to consider notching the 4x4 post to let in the 2x4 frame. This would allow the post to come flush to the out side of the frame and makes for a nicer look. Center wedge shaped deck section is made like the others, it bolts in between the 4x6 sections.