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I tried posting earlier. It doesn't look like my post made it. So trying again. I live in Bay area(California ). I need to fish a wire across the doubled up 2x4(Eventually I wanted to use the vent for a washing machine in a room to the right of laser line. But based on what I am seeing here it...

Hello! First-timer doing a shower install, it's a Sterling Vikrell shower pan and liner. Hoping for some guidance. The flange along the sides of the liner have little dimples where the material is thinner, this is where they recommend nailing/screwing to the studs. This is a 39" unit...