The only other problem I have seen with a Soss Hinge is using the incorrect quantity of hinges for their door weight. Such as needing a quantity of five 218 hinges or three of the 218H on a door, and they use three of the 218 instead of the Hercules. Even then the damage to the hinges wasn't awful.
Thankfully the manufacturer has their published data regarding this called the Nomograph which can be seen on the manufacturer's page here: absupply.net/Soss-Invisible-Hinges.aspx Rich
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The only other problem I have seen with a Soss Hinge is using the incorrect quantity of hinges for their door weight. Such as needing a quantity of five 218 hinges or three of the 218H on a door, and they use three of the 218 instead of the Hercules. Even then the damage to the hinges wasn't awful.
Thankfully the manufacturer has their published data regarding this called the Nomograph which can be seen on the manufacturer's page here: absupply.net/Soss-Invisible-Hinges.aspx Rich