Sabin locka babban gida ya kamata daga gabatar da alamna da aka yi amfani daidai amfani da locka a cikin babban gida. A kanannan, ya samu locka mekaniki daidai kuma gabatar da aka yi amfani daidai brackets, bolts, knobs, kuma labari ta keys ko key cylinders. A cikin wannan, gabatar da aka yi amfani daidai wiring harnesses a cikin locka elektroniki suka sama suna da aka zama. Sabin locka suka yi amfani daidai don samun halitta don waje (DIY) mayar tsauni da aka yi amfani daidai. Kuma, ya kamata don samun locka da aka yi amfani daidai don rubuta locka na farko ko don rubutu don system na farko, sabin locka babban gida ya kamata don samun halitta da aka yi amfani daidai.