Wall construction having a continuous sill with gutter means

摘要: There is provided an improved wall construction including a vertical mullion and horizontal member. The member with longitudinally extending screw splines. members may be assembled in the known shear block method, or spline system, further accordance present invention pin system. system employs which joins to mullions. prepared for attachment of by forming holes receive head pin, insertion pins into splines formed then installed on installing hole previously drilled mullion, tapping downward until bottom holes.