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James Hardie Hardie Plank Smooth Lap Siding 12 in x 12 ft HardieZone 5 Primed
Regular price $29.75Orders start at $399 — combine any items to reach the minimum. Learn more
James Hardie Hardie Plank Smooth Lap Siding 12 in x 12 ft HardieZone 5 Primed
This James Hardie Hardie Plank lap siding board is a 0.3 in thick fiber cement plank with a smooth square edge finish, measuring 12 in x 12 ft, primed for field painting and engineered for HardieZone 5. One plank per sell unit. It is James Hardie's best-selling lap siding line and pairs with Hardie Trim Boards and Hardie Weather Barrier.
Key Features:
- Smooth modern finish: Smooth square edge plank delivers clean, contemporary lap siding lines.
- Primed for paint: Arrives factory primed and ready for field painting in your choice of color.
- Noncombustible: Complies with ASTM E136 as a noncombustible cladding; will not burn and adds no fuel to a fire.
- HZ5 engineered: Engineered for Climate for HardieZone 5, resisting damage from freezing temperatures, hail, snow, ice and wet weather.
- Pest resistant: Holds no appeal for woodpeckers, termites and other pests.
- Wide exposure: 12 in board width allows a 10.75 in exposure for faster coverage per course.
- 30-year warranty: Backed by a 30-year non-prorated, transferable limited substrate warranty.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | James Hardie |
| Manufacturer model | 6000017 |
| Sell unit | 1 plank, 12 in x 12 ft |
| Product line | Hardie Plank Lap Siding |
| Profile / style | Smooth square edge lap siding |
| Color | Primed (for field painting) |
| Dimensions | 12 in x 12 ft, 0.3 in (5/16 in) thick |
| Exposure | 10.75 in |
| Material | Fiber cement |
| Finish / texture | Smooth, factory primed |
| Fire rating | Noncombustible per ASTM E136; ASTM E84 listed |
| Warranty | 30-year non-prorated, transferable limited substrate warranty |
| Weight | 28.8 lb per plank |
| Approvals | ASTM E84; ASTM C1186 Type A Grade II; ASTM E136; WUI Listed; ICC-ES ESR-2290, ESR-1844, ESR-2273; Miami-Dade Approved; FL889; TDI EC-23 |
| Intended use | Exterior horizontal lap siding for HardieZone 5 regions |
Coverage & How Much You Need:
With a 10.75 in exposure, each 12 ft plank covers about 10.75 sq ft per course; divide total wall area (minus openings) by 10.75 sq ft to estimate plank count and add waste for cuts and laps.
Fit and Compatibility:
Part of the James Hardie Hardie Plank line for HardieZone 5; pairs with Hardie Trim Boards, Hardie Soffit, Hardie Weather Barrier and ColorPlus Touch-Up Kits. Install with ICC-ES ESR-2290 approved corrosion-resistant fasteners. Trim, fasteners and finish paint sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One 0.3 in x 12 in x 12 ft Hardie Plank smooth square edge lap siding board, factory primed and sold as a single piece.
Q: Is this a finished color or primed?
A: This plank is primed only: it is meant to be painted in the field with exterior paint after installation.
Q: How much wall does one plank cover?
A: At the listed 10.75 in exposure, each 12 ft plank covers about 10.75 sq ft per course.
Q: How should it be fastened?
A: Use corrosion-resistant galvanized or stainless steel fasteners approved under ICC-ES ESR-2290, spaced per James Hardie Wind Load Tables; blind nailing is preferred where codes allow.
Q: Is Hardie Plank fire resistant?
A: Yes, it complies with ASTM E136 as noncombustible cladding; note that applied paint or coatings may still be damaged by flames.
Q: How do I clean and maintain it?
A: Avoid pressure washing; rinse with a garden hose and a soft or medium bristle brush once or twice a year.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
The 12 in smooth square edge plank gives the widest lap exposure in the Hardie Plank line, speeding installation on large walls, and the primed finish lets you choose any field color. Keep gaps and clearance per James Hardie's Quick Start guide and paint promptly with a compatible exterior coating. For hot, humid regions confirm whether HZ10 product is required instead of this HZ5 board.
Cut fiber cement with a dust-reducing saw and follow silica dust safety practices, including hearing and eye protection.
Order James Hardie Hardie Plank smooth lap siding in 12 in x 12 ft primed for a paint-ready HardieZone 5 exterior.
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