The Short Answer
A complete set of structural drawings documents the load-carrying elements required by a project so it can be submitted for review. A typical set includes general notes, foundation plans, framing plans for each level, structural details, and schedules for members and connections. The exact contents scale with project size — a single beam replacement may be one sheet, while a commercial building has a full multi-sheet package. Where a seal is required, the responsible licensed structural engineer is confirmed for the project and takes responsibility for the design.
Structural General Notes
The general notes sheet establishes the design basis for the entire set. It typically lists the governing building code, design loads (dead, live, wind, seismic, snow), material specifications (concrete strength, steel grade, lumber species, rebar), and standard construction requirements. Reviewers read this sheet first to confirm the design meets code before checking individual elements.
Foundation Plan
The foundation plan shows the layout of footings, foundation walls, slabs, piers, and grade beams. It locates each element in plan, references the details that define its construction, and coordinates with the soil bearing values from the geotechnical report. This is where the building's loads transfer into the ground.
Framing Plans
Framing plans show the structural members at each level — floor framing, roof framing, and any intermediate levels. They identify beams, joists, columns, headers, and the lateral system (shear walls or braced frames), with member sizes and spacing called out. There is generally one framing plan per level.
Structural Details
Details are enlarged drawings showing exactly how members connect and how critical assemblies are built — beam-to-column connections, holdowns, base plates, reinforcing at openings, and typical construction conditions. Details translate the plans into buildable instructions and are essential for both the contractor and the inspector.
Schedules
Schedules organize repetitive information into tables — for example, a footing schedule, column schedule, or shear wall schedule. Instead of labeling every element individually, the plan references a schedule tag, and the schedule lists the size and reinforcing for each type. This keeps the drawings clean and consistent.
When It Applies
You need structural drawings whenever a project touches the building's structural system and requires a permit. That includes new construction, additions, wall openings, equipment support, and retrofits. The size of the set follows the scope: a small residential modification may need only a detail sheet and calculations, while a commercial project needs the full package described above. We tailor the set to what the authority having jurisdiction (AHJ) requires.
Frequently Asked Questions
Do structural drawings include calculations?
Calculations are usually a separate document submitted alongside the drawings. The drawings show the design; the calculations demonstrate that each element meets code loads.
Who prepares structural drawings?
A licensed structural or professional engineer prepares, reviews, and stamps the drawings, accepting professional responsibility for the design.
How many sheets will my project need?
It depends entirely on scope. A single wall opening may be one sheet; a multi-story building can require a dozen or more. We scope the set to your project during proposal.