The APU9 model fits holes from 5 x 6 up to 8 x 8 The access door is 8 x 8 with overall outer panel frame dimensions of 10 x 10 Series APU SpringFit Access Panel, a convenient, attractive means to hide unsightly wires, cables, pumps while maintaining their accessibility Installs faster, easier as no cutting is required, and the integrity of a wall remains intact Plain white faceplate that can be wallpapered or painted to match a rooms dcor Fits into odd shaped holes A template is provided if cutting is necessary Made of sturdy polystyrene