“H x W” represents the Height multiplied by the Width of the structural wall opening. For an accurate preliminary assessment, please also provide the total wall/cavity thickness.
For initial estimation and quoting purposes, these dimensions do not need to be millimeter-perfect—reliable approximate measurements from wall to wall are sufficient. Rest assured that prior to any structural shop drawing sign-off or factory fabrication, our engineering team will work with you or your installer to verify absolute, precision site dimensions.