Cross cutting sled and guide rails

I was tired of of trying to use my miter saw for all my small cross cuts, so I used some scrap MDF to make a small crosscut sled. The base and fence are 3/4” MDF and a i found a peice of scrap yellow pine to make a runner. It can crosscut up to 22”, and as far as I can tell, it’s pretty darn square.

The guide rails were made out of frustration, after trying to cut a full sheet of MDF on my table saw, without infeed or outfeed support. They are 4’6” and 3’ respectively. The longer one is made to crosscut full sheets, and the shorter one is made to cross cut narrower stuff, instead of trying to deal with a lot of overhang on the ends, with the longer one. It also has a stop on it, so i dont have to make multiple measurements, just mark one side, and it’s set to 90 without a lot of fuss.