| Column | Description | Why you need it | | :--- | :--- | :--- | | | Division (00-49) | High-level sorting | | Level 2 | 3-digit number (03 00 00) | Concrete section header | | Level 3 | 5-digit number (03 11 00) | Cast-in-place concrete | | Level 4 | 8-digit number (03 11 19.13) | Post-tensioned tendons | | Title | Official CSI description | Avoiding naming confusion |
: An official Excel file from CSI that links numbers and titles between the 2018 and 2020 editions. csi masterformat 2020 excel download hot
If you only need basic division titles for reference rather than a full granular spreadsheet, these sources offer free summaries: | Column | Description | Why you need