LP Building Solutions LP SmartSide Lap Siding
LP SmartSide Lap Siding — engineered wood lap siding with LP SmartGuard zinc borate treatment applied to the core for fungal decay and termite resistance. Resin-saturated overlay and factory primer. Dimensional stability superior to solid wood; Class A fire rating (ASTM E84). 50-year limited substrate warranty; accepts paint/stain. The primary alternative to fiber cement in the engineered wood exterior category. Available in 6 in (5" exposure), 8 in (7" exposure), and 12 in (11" exposure) widths; 16-ft standard lengths. Cedar-textured or smooth face.
Material
Strand-based engineered wood; LP SmartGuard zinc borate treatment to core; resin-saturated overlay; factory primer
Thickness
7/16 in nominal (3/8 in actual)
Length
16 ft standard
Textures
Cedar-textured (76 Series); Smooth face (Smooth Lap)
Fire Rating
Class A (ASTM E84 flame spread ≤ 25)
Decay Resistance
Zinc borate SmartGuard treatment to core; resists fungal decay and termites
Model Comparison
3 models
| Specification | 6 in | 8 in | 12 in |
|---|---|---|---|
| Model | — | — | — |
Shared Specifications
All models| material | Strand-based engineered wood; LP SmartGuard zinc borate treatment to core; resin-saturated overlay; factory primer |
| thickness | 7/16 in nominal (3/8 in actual) |
| length | 16 ft standard |
| textures | Cedar-textured (76 Series); Smooth face (Smooth Lap) |
| fire_rating | Class A (ASTM E84 flame spread ≤ 25) |
| decay_resistance | Zinc borate SmartGuard treatment to core; resists fungal decay and termites |
| code_approval | ICC-ES ESR-2586 |
| warranty | 50-year limited substrate; 15-year finish (ExpertFinish pre-finished) |
| distribution | Home Depot, Lowe's, LBM dealers |