Markar Products Markar FAQs Reference these Frequently Asked Questions to get answers to your concerns related to Markar products. How to Hand a Door If you would like to know how to properly handle a door, reference this short guide. Markar Installation Instructions Download these PDF instructions for Markar hinges. Markar Architectural Products Warranty This warranty for Markar products lays out the rules for the replacement of defective goods. Markar Terms and Conditions Turn to these terms and conditions if you have any questions about the Markar product you have purchased. Tech Memos Download these technical memos for Markar products.