A method and system for installing shakes on a building comprising a ledger board and a shake jig for assisting with installation of shakes. The shake jig comprising a base member supporting an adjustable member with a releasably fastener facilitating releaseable retention of the adjustable member in...http://www.google.com.hk/patents/US7908761?utm_source=gb-gplus-share專利 US7908761 - Shake jig for installing shake siding
