


Primed, Light, Ready to Frame
This clean, paint-ready, solid-wood jamb frames the opening with quiet precision. Milled from Paulownia—remarkably lightweight and easy-working—the stick arrives factory-primed to take finish coats beautifully. Size: 4-5/8 in width × 7′ length. Use it to build the side or head jamb of an interior frame; the size aligns with 2×4 walls with 1/2-in drywall (the standard ~4-9/16 in jamb depth), leaving room to scribe or shim for a flush reveal.
Features
- What it is: The jamb is the structural frame member that the door hangs on (hinge side) and closes against (strike side).
- Material: Paulownia hardwood — very light (≈260 kg/m³), straight-grained; easy to machine and finish.
- Finish: Factory-primed, paint-ready—eliminates field undercoating and speeds topcoat.
- Sizing intent: 4-5/8 in width targets 2×4 + 1/2-in drywall wall builds (typical jambs ≈ 4-9/16 in). Shim/scribe to plane with finished walls.
- It is supplied as a blank jamb (unmachined) so that hinge and strike mortises can be cut to your hardware and reveal requirements.
Specifications
- Category: Interior door jamb/frame member
- Material: Primed Paulownia (solid wood) — paint-grade
- Dimensions (nominal): Width 4-5/8 in × Length 7′
- Use: Build side or head jambs for 78–80″ doors; pairs with casing and stop to complete the opening.
- Finish: White factory primer; apply finish paint after installation.
