Structurally Sound, Solid and Stable

The three main terms used to describe the required strength of an existing or newly installed substrate are “structurally sound,” “solid” and “stable.” “Structurally sound” is a common construction term that indicates that a material is strong, sturdy and well made. “Solid” is a general term that describes a material as being dense and free from damage and defects. “Stable” refers to the material as being firmly supported, securely fastened and inflexible.

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