$321.39. Get an INSTANT estimate of the cost to Hang an Interior Door! Our free calculator uses recent, trusted data to estimate costs for your Interior Door Installation project. For a basic 1 door project in zip code 47474, the benchmark cost to Hang an Interior Door ranges between $178.92 - $321.39 per door.To estimate costs for your project: 1. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased.or a basic 1 door project in zip code 47474, the benchmark cost to Hang an Interior Door ranges between $178.92 - $321.39 per door. To estimate costs for your project: 1.