How to Choose the Right SOSS Hinge by Door Width and Weight

SOSS makes some of the strongest and safest concealed hinges on the market. They have been industry leaders for over 100 years. Featured in places like the White House, Buckingham Palace and countless high-end resorts, the SOSS invisible hinge is a tried and true product all over the world.

SOSS Video Overview

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Using A SOSS Cheat Sheet

A common question that we often receive is how to choose the hinge based on door width or door weight. SOSS does provide a cheat sheet to select the correct hinge model number to get you off and running.

The nomograph included in this post has been developed to assist you in determining the correct size and number of hinges for your installation. If the information you need is not on the chart, consult the factory.

The general rule used to determine the number of hinges is: Every door should be provided with at least one hinge for every 30 inches in height or portion thereof; however, more hinges may be required per chart below. For example, a 90″ door needs three hinges and a 91″ door needs four.

Directions

After determining the weight and width of the door, draw a straight line through the door width and weight to line “A”, as indicated in the example.

Continue with a horizontal line sideways from the point of intersection with line “A” until the door thickness is reached.

Use the number of hinges and the model number indicated on this line. To use this chart as a working guide, we suggest that you photocopy this page.

Example

A wood door 30″ wide, 200 lbs., with a thickness of 13⁄4″ will require four #218 SOSS Invisible Hinges. The red line shows how the sizing and selection were determined from the nomograph.

The nomograph above has been developed to assist you in determining the correct size and number of hinges for your installation.


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