Basic
$417 – $1,000 each
Solid knotty alder stile-and-rail 3-panel door, unfinished, standard hinges and latch fitted

Supply and install one solid (or solid-core with alder veneer) knotty or clear alder interior door, pre-hung or slab, including hardware and fitting.
Solid Alder Interior Doors in Portland, Maine typically costs $490 to $1,177 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Portland are 1.0% lower than the national average for solid alder interior doors.
National average: $500 – $1,200 each
$417 – $1,000 each
Solid knotty alder stile-and-rail 3-panel door, unfinished, standard hinges and latch fitted
$490 – $1,177 each
Select-grade knotty alder 3-panel stile-and-rail door with fewer, smaller knots, unfinished, hinges and latch fitted
$613 – $1,471 each
Solid clear alder 3-panel stile-and-rail door with smooth even grain, unfinished, heavier hinges and latch fitted
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $220 – $523 | each |
| Labor | labor | $173 – $421 | each |
| Supplies & Other | supplies | $58 – $140 | each |
| Equipment & Disposal | equipment | $39 – $93 | each |
Connect with local solid alder interior doors contractors in Portland for personalized quotes based on your specific project.