Step 1: Generic Table/Desk
Step 2: Height of Desk as it is.
Step 3: Standing Desk Ergonomics (picture borrowed from iamnotaprogrammer.com)
37" - 25" =12"
Step 4: Design! 1.2.3 Step Diagram
Below is what I came up with sketched in Sketchup!
Step 5: What you Will Need
Step 6: Assembling the Pieces
When cutting the wood, make a small tick on the edge of the wood at the proper length and be sure to position the saw so that the saw blade is just outside the tick on the side that you WILL NOT be using (otherwise all your pieces will be a saw blade short). Then position the pieces so that the bottom edges are flush, clamp them to a flat surface, and begin screwing the pieces together with 3" screws. I used a 1/8" drill bit to pre-drill the holes since there is a lot of wood to get through. I used 2 screws per side of the pin-wheel of 2x4s.
Be sure to assemble the pieces in the order I have shown in the design step I found it can be hard to slip the plywood piece in after all the 2x4s are screwed together.
Step 7: Lift up your desk!
I made this project at TECHSHOP! It's a fantastic place that I highly recommend. Get a membership or just more information at their website: www.techshop.ws