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If so -- the steps would be rather shallow. 100mm is only 3.937 inches. Not serious steps if that small -- but perhaps ones which one can flow up without breaking stride for some ceremonial purpose. But a tool like that would certainly be made to have a range more suitable to the extremes of step sizes.
Enjoy, DoN.
How about masonry? You could check each brick as you placed it.
Just today, on "Ask This Old House," they used a string for that. (each course would line up with the string, etc...)
Cheers! Rich
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