Vestal crawlspace doors are suitable for new design and so are lockable. The doors are produced dimensionally to reduce having to Reduce the brick or block. The doors feature a built on lintel. Created for institutional, commercial and industrial apps Steelcraft offers an entire line of hollow metal steel doors http://www.aroundhendrickscounty.com/california/yorba-linda/home-remodeling/euroline-steel-windows-doors