BI-DESIGN software is a tool used by engineers and other professionals to assist them in determining the proper geogrid products to be used in their design of pavement structures and other earthwork structures which incorporate geogrids. All data and calculations (including drawings) produced by BI-DESIGN software are based on principles, formulas, safety factors and assumptions set out in the BI-DESIGN User’s Manual (which can be accessed within the BI-DESIGN software). The professional using the BI-DESIGN software is responsible for determining if the principles, formulas, safety factors and assumptions are appropriate for the particular site conditions and project requirements for which geogrids will be used. Average values for geogrid input data are provided by BOSTD which are values obtained during QC and QA product testing. Site condition values used in the BI-DESIGN software needs to be provided by the software user. There are different types of design calculator viz. QUICK CALC, SUB SAVE, BASE RF & this software also contains ESTIMATOR and SPEC PLUS for cost estimating and references respectively.