What is from Strain. Straining piece (Arch.), a short piece of timber in a truss, used to maintain the ends of struts or rafters, and keep them from slipping. See Illust. of Queen-post called?

straining — from Strain. Straining piece (Arch.), a short piece of timber in a truss, used to maintain the ends of struts or rafters, and keep them from slipping. See Illust. of Queen-post. (Webster's 1913.)

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