There are two accepted and safe methods of fixing glass blocks and building walls made from glass blocks. The strongest and most popular is the 'Mortar' method used by builders. The alternative is a relatively new system called 'Easyfix'. Both systems have relative advantages and disadvantages and require varying skill levels, the 'Easyfix' method being the simpler of the two. Below are two simple diagrams showing how both methods of fixings can be carried out.
 
     
 
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