Double Lumber Spline
Two pieces of 2x or engineered lumber side by side between two structural insulated panels, nailed through both skins, for a joint that carries more load than a single spline.
Details
Category: Framed Walls › Steel Frame and SIP Walls › SIP Splines
By Huu Khanh Nguyen · Updated November 4, 2026
Parameters
| Name | Default | Unit |
|---|---|---|
| Length | 8 * 12 * 25.4 | mm |
| Panel thickness | 6.5 * 25.4 | mm |
| Finish | white | |
| Joint clearance | 1.5 * 25.4 | mm |