Fitting glass blocks in a stud wall is not a difficult task, but there are a few things you need to keep in mind. First, make sure the wall is completely dry and free of any debris. Next, select the size and type of glass block you will be using. The most common sizes are 4x8 and 8x8. Once you have selected the size, determine how many blocks you will need to fit the space. It is always best to err on the side of too many rather than too few.
Now that you have all of your materials, it's time to start fitting the glass blocks into the stud wall. Begin by applying construction adhesive to the back of each block. Once the adhesive is applied, press each block into place against the wall. Make sure that each block is level with those around it before moving on. If necessary, use shims to level out any unevenness.
Once all of the blocks are in place, apply silicone caulk around the perimeter where each block meets the next one or touches another surface (such as a window sill). This will help seal any gaps and prevent water from seeping through. Allow the caulk to dry for 24 hours before proceeding with any further work on the project.