Milgard built its Tuscany series vinyl swinging patio door with an aluminum sub-frame for added stability, a heavy-duty astragal to resist extreme weather, and mitered, welded panels to block water infiltration. The doors come in more than 30 single- and multi-panel configurations with fixed or in-swing sidelites. Three-point stainless steel locking hardware is standard, and a non-operable door handle is available on the passive panel to balance paired doors. 800.645.4273. www.milgard.com.