We've made calculating cable and pipe transits simple with our complimentary Transit Calculator software program. Once you have received and installed the software choose the system you want to use, enter the quantity and sizes of the cables or pipes that you are ducting, enter the transit size (or let the software tell you the appropriate transit size) and that's it. The software will calculate the bill of materials for you and will generate a materials list and drawing in an MS Word file. All calculations can be stored in a project database for future use. Please call or email us to receive the calculator software.