Hi tom23, I'm also trying to get about 26x26 garage plan. I'm sure as you know, if you google for "garage plans," you'll get lots of links like to sites for home plans like familyhomeplans.com, eplans.com, architecturaldesigns.com, but also thegarageplanshop.com, justgarageplans.com, etc. Most plans cost at least upper hundres but includes elevations, foundation plan, framing plan, cross sections, electrical, plumbing & HVAC layout.
Based on comments here, I went to Menards, a big box store, and saw printed plans, some same as those online, very much under $100.
glentre said "Try Ryan Moe Designs. He's on the net. He did a complete set of custom drawings for my garage after I sent him some preliminary sketches and a few emails regarding what I wanted. All for only $750 total if I remember correctly. Worth contacting him."
bad_idea seconded Ryan.
If you don't need cross sections, electrical, etc., or know enough to draw, I guess you could modify an existing plan.
I haven't yet decided to go with Ryan or 2 local architects I just found.
Let me know if you find any useful resources.