Every other mirror shape commits you to something. A circle reads modern. An arch reads traditional. A scalloped or organic outline is a decision about style before it is a decision about a wall. A rectangle asks for none of that. It is the shape of the doors, windows, pictures and furniture already in the room, so it settles wherever it is put and argues with nothing. That is not the most exciting thing to say about a mirror, but it is the reason rectangular mirrors outsell every other shape, and the reason this one will work in a room you have not decorated yet.
What stops it looking plain is the detail at the edges. The frame has an angled profile, so the face slopes back toward the glass rather than lying flat, giving depth to a section only 45 mm deep. The glass is bevelled, with the perimeter ground and polished at an angle so it catches light in a fine bright line just inside the frame. Neither is decoration in the ornamental sense. They are both small refinements of the edge, which is exactly where a simple shape needs them.
1040 mm by 735 mm, 45 mm deep, 7.94 kg. Bevelled glass in an oak effect angled frame, with D-rings fitted for portrait or landscape hanging. For a contemporary mirror that goes the other way and makes the shape the feature, the Simplistic Round Wall Mirror in Black takes the minimal circular route.
Hang it portrait where you want height: above a narrow console, in a hallway, between two windows, or on a section of wall that feels short. The vertical format draws the eye up and makes a low ceiling less obvious. Hang it landscape where you want width: above a sofa, a sideboard, a bed or a run of low storage, where the horizontal line follows the furniture rather than cutting across it. As a rule, match the mirror to the shape of whatever sits beneath it. A wide low piece takes a landscape mirror; a narrow tall one takes portrait. If nothing sits beneath it at all, portrait is usually the safer choice.
Above a hallway console, hung portrait, where the height suits a narrow space. Over a sideboard or a sofa in a living room, turned landscape so the mirror follows the line of the furniture. In a bedroom above a chest of drawers, at a height that still makes it usable. On a dining room wall opposite a window, returning daylight across the table. In a kitchen on the short run of wall beside a doorway, where a warm frame relieves a room full of hard surfaces.