My job usually is the replacement of an.existing system and not the total layout of duct work and plenums.
I don't want to lose my butt off again on the duct work son in posting this is I see what you guys use to satisfy the quote requirements in pricing the duct work. I have a warehouse with one 20 ton and one 10 ton RTU. The warehouse will actually have 10' high ceiling grid. It's used to store and produce products . Than a small office space for a 4 ton RTU for the office area.
Can I get some help with pointing me in the right direction ?