SDG has various meanings in the Business category. Discover the full forms, definitions, and usage contexts of SDG in Business.
The 2 X 4 or 2 X 6 wood plate framing member that lays flat against and bolted to the foundation wall and upon which the floor joists are installed. Normally the sill plate is treated lumber. The member forming the lower side of an opening, as a door sill or window sill. The finished exterior covering of the outside walls of a frame building.
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