I see a lot of people on here using CAD to show the plans for their buildings. My question is, are these programs being used by you directly or is a contractor or architect using them and you just posting the pictures? I am asking because I would like to start fabricating parts, tables, carts, etc... I don't need a huge, fancy, elaborate program to build a garage. Just something simple to make mostly straight lines and give me measurements and sizes. Also a huge plus would be that the program is free. If anyone is using something like this or has any information regarding it please let me know. Thank you!