What Is a Column Schedule?
A column schedule is a table on structural drawings that lists every column in the building with its size, reinforcement, and connection details. It's the contractor's quick reference for what's in each column without hunting through plans.
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What's in the schedule
Column mark (e.g., C1, C2), dimensions (18"x18", 24" round), concrete strength, vertical reinforcement (8-#9), tie size and spacing (#4 @ 6" O.C.), base plate details for steel columns, and any special notes. Each unique column type gets a row; identical columns share a mark.
How it's used
The contractor uses the schedule to order materials, set formwork, and place reinforcement. The special inspector verifies that the as-built columns match the schedule. It's faster than reading individual details for each column — especially in buildings with hundreds of columns.
Coordination importance
The column schedule must match the framing plans (column locations), foundation plans (footing sizes for each column), and architectural plans (column enclosures and finishes). Mismatches between the schedule and plans are a common source of RFIs and field problems.
The bottom line
Column schedules list every column's size, reinforcement, and details in one table. They must coordinate with framing, foundation, and architectural plans.
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