Heavy-duty sliding-door options.

The new sliding patio door and French sliding door manufactured by the company Weather Shield Windows and Doors feature a standard design pressure rating of DP-35, with a DP-50 upgrade available that complies with some of the strictest building code requirements in the U.S. The doors feature a thick jamb, approximately 25 percent heavier jamb components, an improved slider system, and a new door-channel design that guides the moving panel.