A joist hanger typically includes one or more teeth which can be manually pressed into a header to hold the joist hanger in place on the header to free up a worker's hands so that a worker can nail the joist hanger to the header without having to manually hold the joist hanger in place while driving the nails. The joist hanger may also include a height-setting tab configured to engage the bottom of the header to set the height of the joist hanger relative to the header. The tab may be a break-off tab to allow the joist hanger to be used without the tab if desired.