LEESBURG, VA. – The American Wood Council (AWC), International Code Council and WoodWorks have joined together to release an updated version of the free app to calculate maximum allowable heights and areas for buildings of various occupancy classifications and types of construction. The Heights & Areas Calculator is based on the provisions in the 2021 and earlier editions of the International Building Code (IBC), which includes the Type-IV mass timber construction types. The app now also includes the heights and areas specific to the 2019 California Building Code, including mass timber types of construction. Users can input the proposed building height and area for any occupancy, and the app shows allowable types of construction that are permitted. The “basic” version of the calculator limits building input to a single occupancy and equal floor areas for the entire building. An “advanced” option permits multiple occupancies and different floor areas.