Engineered Wood Siding: Wood Beauty, Engineered Durability (2026)
Engineered wood siding is made from wood strands bonded with resin and treated with zinc borate for rot and insect resistance. LP SmartSide is the market leader. It provides authentic wood aesthetics with better durability than natural wood, lighter weight than fiber cement, and easier installation for contractors.
Key Features
- Authentic wood grain texture; Treated for rot and insect resistance; Lighter than fiber cement; Easy to cut with standard tools; Factory-primed
Specifications
Applications
- Residential exterior walls; Gable ends; Soffits and trim; Board and batten style; Builder-grade construction
Installation Overview
Install over house wrap with corrosion-resistant nails. Blind-nail or face-nail per manufacturer specs. Maintain 3/16-inch gap at butt joints, caulked or with H-molding. Prime all cut edges and field-cut ends immediately. Paint within 90 days of installation.
Pros & Cons
Pros
- ✓ Authentic wood look; Lighter than fiber cement; Easy to work with; Rot and insect treated; Good value proposition
Cons
- ✗ Requires painting; Can swell if cut edges not primed; Shorter warranty than fiber cement; Not fire-rated; Moisture management critical
Top Brands
Code Requirements
Must meet ASTM C1177 or PS 2. Installation per manufacturer specs and IRC R703. House wrap required per IRC R703.1.1. Not approved for wildfire zones without additional treatment.
Buying Tips
LP SmartSide offers excellent value as a middle option between vinyl and fiber cement. Always prime cut edges immediately to prevent moisture absorption. Choose 16-ft planks to minimize butt joints.