King Farmhouse Bed

I pretty much followed the original plans.  I added a chamfer on the outside corners of the posts and on the top boards on the head and foot boards.  I also stained these to match the nightstands.  Since I used a foam mattress, i built a platform by gluing/screwing a 2x4 inside the side rails.  Then I set 1x6s on the 2x4 to support the mattress.  

I use the free version of Sketchup to design the bed and estimate materials needed.  

Lessons learned

• Take extra time to figure out how to connect the side rails to the head and foot boards.  I thought i could use a sliding lock but this wouldn't work for my design.  I improvised using 3x7 tie plates and screwed the two components together.  For the headboard, I lined the 2x4 with the inside headboard post.  For the footboard, I bent the tie plate 90 degrees and screwed the 2x4 to the footboard.  It worked very well.
• I would recommend chamfering the outside top of the side rails.  I didn't and my wife complains that she  bumps her shins on it. 
• Top boards are 1x5s, which in my are are only sold at home depot.  The other wood is readily available.

It's not that difficult of a project.  It is time consuming, though.