I recently got our company signed up with Lowe's and Home Depot to do cabinet installations.  I did a few installs and wished I didn't have to hold them up while David screwed them to the wall. So I came up with the idea of a platform that I can put the cabinet on and raise it to whatever height I want.  This could make cabinet installation a one man opperation.

It was nice to get my idea on paper.  Here's what I drew

I ordered the steel online and it came in about a week.   The hardware and wheels are from ACE Hardware.  I deviated from the original sizes just a little to keep from having too much waste.  After several hours of cutting, drilling and welding I now have the frame.  Here it is completely collapsed.

Here it is extended to 6' tall.

And here it is at abot 8' tall.

Now I need to find a way to power it.  I tried using the acme thread and nut out of a car jack but it didn't have enough power.  So, I'll have to think about what's next.  Maybe hydraulic?