Basic
$3.33 – $7.08 per sq ft
Primed 7/16 in. smooth hardboard lap siding over house wrap, standard corner trim, flashing behind butt joints, joints caulked

Install primed hardboard (Masonite-type) lap siding with trim on an exterior wall, per sq ft of wall, materials and labor.
Hardboard Siding in Portland, Maine typically costs $3.92 to $8.33 per sq ft 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 hardboard siding.
National average: $4 – $8.50 per sq ft
$3.33 – $7.08 per sq ft
Primed 7/16 in. smooth hardboard lap siding over house wrap, standard corner trim, flashing behind butt joints, joints caulked
$3.92 – $8.33 per sq ft
Primed 7/16 in. cedar-texture hardboard lap with flashing behind butt joints, matching corner trim, all joints sealed
$4.90 – $10 per sq ft
Primed 7/16 in. hardboard lap with flashed joints, wider trim at corners and windows, all cut ends primed and sealed
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.75 – $3.72 | sq ft |
| Labor | labor | $1.40 – $2.97 | sq ft |
| Supplies & Other | supplies | $0.47 – $0.99 | sq ft |
| Equipment & Disposal | equipment | $0.31 – $0.66 | sq ft |
Connect with local hardboard siding contractors in Portland for personalized quotes based on your specific project.