By Huu Khanh Nguyen · Updated October 28, 2026 · gate, bi-fold gate, folding gate, trackless, industrial gate, security gate
A trackless bi-folding gate of one or two leaves, each made of two hinged sections that fold back beside a column as the gate opens. Clear opening, leaf height and ground clearance Single or double leaf and hand Leaf section, column and finish Opening motion in the plan symbol
| Name | Default | Unit |
|---|---|---|
| Clear Opening | 4000 | mm |
| Leaf Height | 2000 | mm |
| Ground Clearance | 125 | mm |
| Column Width | 160 | mm |
| Column To Leaf Gap | 75 | mm |
| Leaf Depth | 60 | mm |
| Leaves | 1 | |
| Hand | left | |
| Opening Angle | 0 | ° |
| Finish | white | |
| foldGap | 50 | mm |
| pinOffset | 125 | mm |
| pinToFace | pinOffset - postGap | mm |
| leafLength | (openingWidth / leafCount - postGap - foldGap) / 2 | mm |
| foldPivot | leafLength + foldGap / 2 - pinToFace | mm |
| Width | openingWidth + 2 * postWidth | mm |
| Height | groundClearance + height | mm |