Construction buddy (com.qbit.constructionbuddy) on Google Play
Construction buddy has calculators for many construction tasks. Whether you want a new floor, need to pour some concrete, have to construct a ceiling or drywall, this app can calculate all your requirements. Many other calculators are available, and you can design your floor plans and walls as you want by drawing them on your screen, then calculate the materials needed for what you want to do. Even more features are available in Construction Buddy Pro!