Girt Run
A wall run of steel zed girts, one length per bay butted at every column, bolted to cleats at each column and braced by anti-sag rods between the girt lines. Bays along the wall and the column spacing, Wall height and the largest girt spacing, Girt depth and thickness, Cleat width and anti-sag rod rows
Details
Category: Roof Framing › Steel Purlins › Purlin and Girt Runs
By Huu Khanh Nguyen · Updated November 4, 2026
Parameters
| Name | Default | Unit |
|---|---|---|
| Bays | 4 | |
| Column Spacing | 6000 | mm |
| Wall Height | 6000 | mm |
| Largest Girt Spacing | 1800 | mm |
| Girt Depth | 203 | mm |
| Girt Thickness | 1.9 | mm |
| Cleat Width | 75 | mm |
| Bridging Rows | 2 | |
| Finish | white | |
| Wall Length | bayCount * span + cleatWidth | mm |
| Projection | cleatGap + depth | mm |
| Line Intervals | Math.ceil(wallHeight / maximumSpacing) | |
| Line Spacing | wallHeight / lineIntervals | mm |
| Cleat Gap | depth <= 250 ? 10 : 20 | mm |