We ordered the standard address plaque (vs. the estate size), and the stakes are about 12-14" long - plenty long & they easily screw to the plaque. We actually installed the stakes on the plaque, pressed it into the ground where we wanted to put it (to make guide holes in the ground), then used a separate metal stake to pound into the ground to make the actual holes (instead of having to press/bang the plaque itself into the ground), then easily inserted the plaque/stakes into the ground using the guide holes. We just didn't want to chance banging or denting the plaque (or hitting rocks). Worked like a charm & it looks amazing!
4 years, 6 months ago