if it wasn't so far down to the AZ house i'd take measurements and draw you a blueprint of the one there. if i remember its about 38 inches with the springs out straight. set it once. had to use 2x4's fulcrumed to depress the springs!
snapped a 2x4 in half when we set it off.

the consolidation of the states into one vast republic, sure to be aggressive abroad and despotic at home, will be the certain precursor of that ruin which has overwhelmed all those that have preceded. Robert E Lee
~Molɔ̀ːn Labé Skýla~