Seeing as how a name brand adjustable bed could cost nearly $5000 I decided to build my own (just like most things) cheaper and stronger.
The end result is as good if not better than buying one and with every good nights sleep you will be glad you didn't shell out the money for something you could build.
Step 1: Fitting the Frames
I used our old frame and bolted it to the hospital to test the fit and movement.
Step 2: Creating the Split in the Lumbar Portion
I cut the center section of the frame to split where the original bed did.
If you were building the frame from scratch you would have more freedom than i did but more welding
Step 3: More Hinges
Since the king size frame is so much larger than a single bed I decided to add strong pivot point in line with the stock hinges and add legs to the non moving section.
Step 4: Wooden Base
Just as the sertas and other brands do I added a plywood base over the frame. with out this the springs would just eat up the foam padding
Step 5: Finished
After this step I wrapped the entire frame in a fitted sheet and put the mattress on.