This Soss medium duty hinge is completely concealed when the door is closed. Made from high strength plated steel and heavy duty zinc alloy castings. For help selecting the right size Soss hinge, please reference the the document under Downloads titled "How to Choose the Right Soss Hinge". Alternatively, you can use the following link to calculate which hinge will work best for you. If it recommends a hinge not listed on this page, simply type that hinge number into the search box above (e.g. "#204"). Click here to view the Soss Hinge Selector. Dimensions: #208 Plate Size: 2-3/4" H x 5/8" W Mortise Depth: 29/32" Minimum Door Thickness: 1" #212 Plate Size: 3-3/4" H x 3/4" W Mortise Depth: 1-5/64" Minimum Door Thickness: 1-1/8" #216 Plate Size: 4-5/8" H x 1" W Mortise Depth: 1-7/16" Minimum Door Thickness: 1-3/8"