James Hardie vs. LP SmartSide: Which Wins in North Texas?

When a homeowner asks us "Hardie or LP?" the honest answer is "depends on the house." Both products are excellent. Neither is a flawless universal answer. Here is the comparison from someone who has installed several thousand square feet of each in the last decade.

01James Hardie (fiber cement)

Hardie is fiber cement — a Portland cement and cellulose composite that gets fired into rigid planks. The result is heavier, denser, and harder than wood. Pros and cons:

• Pros: 30-year non-prorated warranty, Class 1A fire rating, completely impervious to termites and rot, holds paint better than wood, hail-resistant
• Cons: heavy (250 lb per square — install labor cost is higher), brittle if dropped, requires diamond-blade cutting (creates silica dust)

02LP SmartSide (engineered wood)

LP SmartSide is engineered wood — strands of southern yellow pine treated with the proprietary SmartGuard process, then bonded with zinc-borate-laced resins. It looks like real wood lap siding because it basically is, just engineered for stability.

• Pros: warmer aesthetic, lighter (75 lb per square — easier install), cuts with standard tools, longer plank lengths reduce seams
• Cons: 5-year prorated warranty after the first 5 years, vulnerable to ground-contact moisture, needs paint maintenance roughly every 10 years

03Side-by-side: the questions that actually decide it

For each question, the answer points to one product or the other:

• Hail-prone area? — Hardie wins. Fiber cement laughs at 1-inch hail; SmartSide will dent.
• Wood-grain aesthetic mandatory? — SmartSide wins, the embossed grain is visibly better.
• Modern flat-paint look? — Hardie wins, and the ColorPlus pre-finish lasts 15+ years.
• Owner planning to paint themselves in 10 years? — SmartSide wins (lighter, cuts easier, more forgiving).
• Budget tight? — SmartSide wins (typically 12–18 percent cheaper installed).
• Wildfire risk? — Hardie wins (Class 1A fire rating).

04Real Texas pricing (per square foot installed, 2026)

• LP SmartSide lap: $6.20 to $8.40
• James Hardie HardiePlank (primed): $7.40 to $9.80
• James Hardie ColorPlus pre-finished: $8.60 to $11.50