A lateral pull wire screen with a net attached, between a first longitudinal frame member in a wire screen frame and a movable frame for an opening/closing operation, to be openable/closable by a lateral pull; a net guide guiding the lower end of the net goes in and out in compliance with the opening/closing of the net. The left/right convenience in the net opening/closing can be altered by the first longitudinal frame member and the movable frame, together with the net attached between them, having substantially upside/downside symmetrical shapes, and reversing them in their upsides/downsides without reversing their fronts and backs. Also, the net guide can be altered in its attachment position by, upon the upside/downside reversions, selectively attaching the net guide to attachment parts provided in both ends of the first longitudinal frame member fixing one end of the net guide.