I spend a lot of time at my computer, both for work and recreation. For the past few years, I have used an IKEA table as a desk. I like it because it has a clean look and allows plenty of air-flow underneath (without bulky drawers). The downside was that the desk is way too high for proper ergonomic comforts, especially when sitting at it for many hours each day.
Over the past few weeks, I’ve noticed some pretty bad back pain and shoulder/neck tightness. I started doing more yoga and stretching to address the issues, but it didn’t really target the cause of the problems. Eventually, I realized my sitting situation in my home office was just wrong. My chair was too low to my desk, and a number of other angles (elbows and legs) were too acute for comfort.
In order to fix my problem, I bought a new desk chair, one that went up higher. However, that wasn’t good enough. My arms will still reaching up to use the keyboard and mouse. I needed to lower my keyboard and mouse to a more comfortable level. Unfortunately, my desk didn’t have such an adjustment and I’ve never liked the slide-out keyboard trays that can attach to the bottom of desk/tables. I always felt too far from the desk.
So, naturally, I found a woodworking solution to my problem and hacked my IKEA desk. I cut a keyboard-tray sized chunk out of the desk with the intention of lowering it. However, I found that the desk was composed of very thin layers of MDF on the top and bottom, some particle board near the edges, and the rest is a torsion box of cardboard.
I had to add thin panels of wood to hide the cardboard and protect it. Thankfully, my new bandsaw gave me perfect strips of poplar to fill in the edges. Then I built an adjustable tray using the cut-out piece. Two sliding pieces of plywood worked perfect, with some screws set in a slot with wing-nuts for adjustability. I glued on the end of the adjustable sides and, voila! a keyboard tray for my desk. I’m not sure if I’ll paint the edges or not.

After hooking my computer back up, I was ready for work and play, without the back aches and pain.

