Wall-To-Wall Spanning Board Ceiling
A plasterboard ceiling carried by steel joists that span from wall to wall, each end seated in a wall track, with no hangers.
Details
Category: Ceilings › Plasterboard › Spanning Board Ceilings
By Huu Khanh Nguyen · Updated November 4, 2026
Parameters
| Name | Default | Unit |
|---|---|---|
| Width | 4800 | mm |
| Span | 3000 | mm |
| Board Layers | 1 | |
| Board Thickness | 13 | mm |
| Board Width | 1200 | mm |
| Board Length | 2400 | mm |
| Board Finish | white | |
| Joist Depth | 92 | mm |
| Joist Metal Thickness | 0.75 | mm |
| Joist Spacing | 600 | mm |
| Joist Edge Distance | endClearance + joistFlange / 2 | mm |
| Track Metal Thickness | joistDepth == 150 ? 1.15 : 0.5 | mm |
| Track Length | 3000 | mm |
| Wall Clearance At Member Ends | 10 | mm |
| Framing Finish | white | |
| Joist Flange Width | joistThickness == 0.75 ? 35.5 : 35 | mm |
| Joist Lines | Math.ceil((sizeX - 2 * joistEdge) / joistSpacing) + 1 | |
| Joist Pitch | (sizeX - 2 * joistEdge) / (joistLines - 1) | mm |
| Sheet Bays | Math.floor((boardLength - joistEdge) / joistPitch) | |
| Column Count | 2 + Math.ceil((joistLines - 1) / sheetBays) |