Double Break Line Annotation Symbol

This Double Break Line annotation symbol is a Revit detail component designed to visually truncate elongated building elements. The Double Break Line is a standard 2D drafting symbol used to represent a section break in structural, architectural, or MEP elements when drawing length exceeds the available sheet space. It features a characteristic zig-zag profile that cleanly interrupts continuous lines, such as walls, beams, or pipes, in section or elevation views. The geometry is clean and lightweight, adhering to typical CAD and BIM drafting standards for clarity and legibility. It provides a consistent, professional appearance for technical documentation, ensuring that long spans are represented accurately without requiring excessive drawing scale reduction.

The download is a 215 KB file containing a Revit family (.rfa). Load it into a project from the Insert tab with Load Family, then place it like any other component of its category; it schedules and tags with the rest of your model.

Load this family into your Revit project as a detail component. Once placed, it can be rotated and mirrored to align with the orientation of the element being broken. Because it is a line-based or symbol-based family, it should be placed over existing linework in drafting views or callouts. Ensure it is mapped to a standard drafting line style to maintain consistent line weights across your construction document set, following your project's specific template standards.

This symbol is essential for architects and engineers working on detailed construction documentation where long, repetitive elements must be shortened on a sheet. It is frequently applied to wall sections, long structural steel members, continuous piping runs, or elongated architectural profiles. By using this, you maintain the correct scale of the detail while effectively managing page layout constraints. It is a standard tool for any practice focused on high-quality production of section drawings, elevation details, and building assembly documentation in Revit.