Hi Everyone,

I've been working with a aluminum speed square, and some of my grandfathers old framing squares (which I can't imagine are still square given how many times i've personally seem them fall onto the concrete floor of our garage growing up)

I'm a little lost on how you evaluate if a square is square or not, without a true square to reference off of. Speaking of reference squares, I should probably get one that is (really really close to) square. How much do you really have to spend to get an accurate square? The $5 square with 3 stars probably isn't what I should use as a reference, but what should I be shelling out for accuracy? A simple engineer square should probably be what I'm looking for? What are the benefits to something crazy expensive from woodpecker? These look super cool, but are probably a bit excessive? https://bridgecitytools.com/products/ts-2v2-try-square

What are peoples go to squares? And the key to keeping them square?

Best,
John