TradesAll engines
13 decision engines across 4 trades. Each one gives a recommendation, the alternatives, and the reasoning.
Electrical
Electrical Wire Size and Voltage Drop Pick a conductor size and material for a run, and know whether ampacity or voltage drop is really driving it. Electrical Breaker and OCPD Sizing Size the breaker for a load and its conductor, and see what the code rules actually require. Electrical Voltage Drop Remedy Your run drops too much voltage. See the ways to fix it and which one makes sense. Electrical Conduit Fill Pick a conduit size for a bundle of conductors and see how much room is left for future pulls. Electrical Box Fill Figure the required box volume for your conductors and devices, and pick a box that fits.
Plumbing
Plumbing Water Pipe Sizing Size a water supply line so the far fixture still gets the pressure and flow it needs. Plumbing Drain Sizing Add up the fixtures and size a drain branch or building drain, with the water-closet and slope rules built in. Plumbing Water Heater Sizing Decide between a tank and a tankless water heater for your peak demand and climate. Plumbing Gas Pipe Sizing Size a natural gas line for the appliance load and run, with a plain warning that gas work is for a licensed pro. Plumbing Pipe Friction Loss Find the real pressure loss down a pipe run, fittings included, and whether the size holds up.