Cutting 26 gauge galvanized sheet metal

[Cathy Liebchen]

straight edge and a good utility knife, score it good, then snap it

This is how we cut them lengthwise- razor knife and snap them. Crosscuts, use power metal shears or a nibbler

 

[Shivers]

Hi , new here. Most larger HVAC companies have a sheet metal shop. A (jump) sheer would give you the best result. Last time I needed multiple straight cuts done, it cost me a 12 pack, to the shop foreman.