Allen writes:
To weigh my bee hives, I use the head, arm, back method. I use my arms to lift the box and if my back tells my head that it is too heavy, then they are good.
tecumseh:
some of us old school guys call this the 'heft method' <or the 'oh my god, there goes my back again' method. doable for singles and story and a half... not so easy on anything of double deeps or larger.
when the box fills easy enough to toss about it need feed. when it feels like a brick it is heavy enough.