What does the tang loose on a measuring tape allow for?

The tang on a measuring tape is designed to provide the necessary allowance for accurate inside measurements. When measuring the inside dimensions of a space, the thin edge of the tang is typically flush against the inner surface, and its thickness must be taken into account to ensure the measurement reflects the true distance. By accommodating for the thickness of the tang, the user can achieve precise measurements in confined or enclosed areas.

In practical terms, when measuring an inside space, if the measurement is taken without considering the tang's thickness, it could lead to errors. This is especially crucial in plumbing, where accurate measurements are vital for fittings and installations to ensure proper alignment and functionality of pipes and fixtures. Understanding and utilizing the tang effectively enables you to achieve the most accurate measurement results.