A non-loadbearing internal timber partition with one door opening: trimming studs, a head trimmer over the opening, studs above it and a bottom plate cut across the opening, plasterboard lining on both sides cut by the opening. Opening width, height and position, Stud section and maximum spacing, Plate thickness, Noggings, Lining thickness and layers on each side, Finishes
Category: Framed Walls › Timber Frame Walls
By Huu Khanh Nguyen · Updated November 4, 2026
| Name | Default | Unit |
|---|---|---|
| Length | 4000 | mm |
| Height | 2400 | mm |
| Opening width | 900 | mm |
| Opening height | 2100 | mm |
| Opening position | 1000 | mm |
| Stud width | 70 | mm |
| Stud thickness | 45 | mm |
| Maximum stud spacing | 600 | mm |
| Plate thickness | 45 | mm |
| Noggings | false | |
| Maximum nogging spacing | 1350 | mm |
| Nogging section | 45 | mm |
| Lining thickness | 10 | mm |
| Lining layers side one | 1 | |
| Lining layers side two | 1 | |
| Timber finish | white | |
| Lining finish | white | |
| Frame offset | layersSideOne * liningThickness | mm |
| Stud top | sizeZ - plateThickness | mm |
| Head trimmer underside | 0 + openingHeight | mm |
| Head and sill trimmer thickness | openingWidth <= 2000 ? 35 : (openingWidth <= 2400 ? 45 : (openingWidth <= 3000 ? 90 : 135)) | mm |
| Trimming stud thickness | [[45, 45, 90, 115], [45, 70, 90, 135], [70, 90, 140, 180], [105, 135, 210, 270]][(openingWidth > 1800 ? 1 : 0) + (openingWidth > 3000 ? 1 : 0) + (openingWidth > 3600 ? 1 : 0)][[35, 45, 70, 90].indexOf(studThickness)] | mm |
| Left run end | openingX - trimmingWidth | mm |
| Bays left | Math.ceil(runLeft / studSpacing) | |
| Pitch left | runLeft / bayCountLeft | mm |
| Right run length | sizeX - openingX - openingWidth - trimmingWidth | mm |
| Bays right | Math.ceil(runRight / studSpacing) | |
| Pitch right | runRight / bayCountRight | mm |
| Bays across the opening | Math.ceil(openingWidth / studSpacing) | |
| Nogging rows | nogged ? Math.ceil((sizeZ - 2 * plateThickness) / noggingSpacing) - 1 : 0 |