If you are looking for amazing source of Google Sheets™ templates that you can use right way you found it. 

DocsJam is a growing library of Google Sheets™ templates like budgets, inventory, schedules, Gantt charts, timelines, and more that you can start copy and use for both personal or business projects.

How to use:

Start the modal to browse and select your templates, a new page will open that allows you to create a copy of the template in your Google Drive™.