> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bedrock.cv/llms.txt
> Use this file to discover all available pages before exploring further.

# Sheets

> Individual pages extracted from drawings.

A Sheet is a single page extracted from a [Drawing](/guides/concepts/drawings). Sheets are identified by their **sheet number** (e.g., A-101, E-201, S-301), which Bedrock extracts from the title block.

## Disciplines

The discipline prefix in the sheet number tells you the trade:

| Prefix | Discipline |
| - | - |
| A | Architectural |
| S | Structural |
| M | Mechanical |
| E | Electrical |
| P | Plumbing |
| FP | Fire Protection |
| C | Civil |
| L | Landscape |
| G | General |


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