re: My first commision as a company - Shaker kitchen in white - almost done....

After looking online, I think you both are describing the same thing, just different versions and sizes for different applications. I can see where several sizes of these could be very handy. From measuring ceilings, alcoves and such, to ensuring the carcass’s and face frames are square, to doing smaller projects like the picture frames described. I think I just may need several of these!