Cut out the headboard with your jig saw and the template from my site. Then use wood glue and your 2" wood screws to attach the headboard to two of your 18" 2x2's. Place the bottom of the headboard 5" up from the bottom of the posts (2x2's).

Repeat step 1 with your other 1x6 and two remaining 18" 2x2's, but this time place it up 3" from the bottom instead of 5". This will give the illusion of the headboard being larger without having to pay for a separate piece of wood.

Now follow Ana's Farmhouse Doll Bed plans Step 10:

http://ana-white.com/2010/11/doll-farmhouse-bed

But your 1x3's will be 18", and your 1x2's will be 10". I chose to add the center bar, and the cut list accounts for that.

Now attach the footboard to the base you just built. I made mine flush with the bottom of the footboard, so up 3" from the floor.

And finally, add your top railings. I chose to center mine on each post. You could bring them in flush with the inside or to the outside if you wanted as well. It won't affect the functionality of it at all.

And the last step is to add the finials and decorative touches! I simply used Gorilla Glue to keep them on, and we haven't had any mishaps yet!