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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