Geogrid Installation Manual
The length, vertical spacing, number of layers and strength of the geogrids needed will vary with each wall project, depending on wall height, loading, slopes, and soil and water conditions. Retaining walls taller than 3 to 4 feet typically require a qualified professional civil engineer (P.E., licensed in the state of the project) to prepare a project-specific, final wall design that shows the needed geogrid based on actual site conditions. Consult with a local building code official regarding permitting and wall design requirements. VERSA-LOK and local VERSA-LOK representatives can provide contacts for engineers with segmental retaining wall design experience who are licensed in your state.
I Unilock® The content of this manual was developed using the vast experience acquired by the Unilock® sales force during more than 40 years in the precast concrete industry. Unilock® has attempted to ensure that all information contained in this guide is correct. However, there is the possibility that this guide may contain errors.
Geogrid Installation Details
For preliminary geogrid estimates, your local VERSA-LOK representative can assist in estimating geogrid lengths and quantities. VERSA-LOK’s Solid Solutions Estimating Software can also help in preliminary estimates of geogrid quantities. The Design and Installation Guidelines manual for each type of VERSA-LOK unit also includes VERSA-Grid estimating charts for that unit type, for common site conditions.