These calculations provide aids for preliminary design and assistance with relevant parameters applicable to breakwater design. The calculations are generally intended to provide prospective users of Core-loc with a tool for estimating the typical size and number of units required for a breakwater structure. The calculations are not intended for detailed design. Detailed design will need to be carried out by engineers competent in the field of breakwater design. Scale hydraulic model studies of specific site conditions are recommended as part of the detailed design work.

A license for the use of the unit on a project will not be issued unless the competence of the design can be demonstrated to the licensor. 

Support for specific project enquiries can be obtained by contacting Core-loc North America: or

It should be noted that no guarantee or warranty is provided that the preliminary design aids given here are applicable in given specific conditions. Accordingly the following disclaimer applies: 


The calculations are provided ‘as is’, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose, should the calculations prove to be incorrect, the user shall assume the cost of all resulting damages. In no event will Core-loc North America be liable for damages, including any general, special, incidental or consequential damages arising out of the use of these calculations.