Double Keel Hardwood Sports Floor
Ball Rebound：≥90%
Coefficient of Sliding Friction: 0.4～0.6
Service Life： 10 Year
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Double Keel Hardwood Sports Floor
Ball Rebound：≥90%
Coefficient of Sliding Friction: 0.4～0.6
Service Life： 10 Year
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DOUBLE KEEL TECHNOLOGY
Double Keel Hardwood Sports Floor
Ultimate Stability & ComfortDual-layer keel structure with independent shock absorption | Superior sports-grade performancePrecision Layered ConstructionThe LVL double keel system integrates upper & lower LVL beams with a central rubber cushion — engineered for elite vibration control, dynamic load distribution and unmatched durability.Exploded View
top → bottom (or bottom-up)
Solid wood skirting lineMatching hardwood trimSolid wood floorPremium oak/walnut wear layerMoisture-proof filmVapor barrier HDPEMulti-layer pine board9-ply cross laminatedLVL upper keelUpper structural layerShock absorbing rubber cushionHigh-rebound EPDMLVL lower keelBase support layerDouble keel + rubber isolator creates a floating floor system. Ideal for dance studios, gyms, luxury homes & audiophile spaces.Engineered Excellence
Dual keel construction delivers superior vibration control and resilienceLVL Lower Keel + Upper Keel
Two independent LVL layers (engineered veneer lumber) create an elevated substructure. Lower keel contacts subfloor; upper keel supports the pine board — eliminates direct stress transfer and reduces structural fatigue.
Shock Absorbing Rubber Cushion
Proprietary EPDM pad placed between upper & lower keels. Provides dynamic cushioning, absorbs vertical impact, and significantly improves energy restitution.
Multi-layer Pine + Moisture Barrier
Cross-laminated pine board enhances flexural rigidity. The HDPE moisture-proof film protects against rising damp and prevents mold formation beneath the solid wood floor.
Performance Metrics
Shock absorption ≥53% · Ball rebound ≥90% · Sliding friction 0.4~0.6 — certified for professional sports and residential premium comfort.
Solid wood skirting line
Perfect match with flooring — covers expansion gaps, hides wiring, and enhances the architectural detailing. Prefinished in matching oil/lacquer.
Available in 80mm/100mm/120mm heights, solid hardwood (oak, walnut, ash).≥53%Shock AbsorptionDIN EN 14904≥90%Ball ReboundEnergy return0.4 – 0.6Coefficient of Sliding FrictionSafe & consistent grip10+ YearsService LifeCommercial warrantyWhy LVL Double Keel?
Designed for high-performance environments where resilience, acoustics, and longevity matter
Sports-Grade Dynamics
Meets DIN standard for multi-purpose sports flooring. Perfect for basketball courts, dance studios, and fitness areas.
Superior Noise Isolation
Double keel + rubber reduces impact sound transmission by up to 20dB, ideal for luxury apartments and recording rooms.
Eco-Friendly Materials
LVL from FSC-certified forests, low-VOC adhesives, and fully recyclable components. Contributes to LEED credits.
Extended Lifespan
10+ years structural warranty with regular maintenance; double keel design reduces point-load fatigue on subfloor.
Technical Specifications – LVL Double Keel System
System Height:~55-65mm (depending on keel dimensions)LVL Keel Material:Pine/Poplar LVL, strength grade EN 14374, ≤12% moisture contentKeel Dimensions (each):45 x 25 mm (customizable), spacing 300mm c/cRubber Cushion:5mm closed-cell EPDM, dynamic stiffness < 35 MN/m³Multi-layer Pine Board:12mm 9-ply, glued with MF resin, formaldehyde emission E0Moisture Barrier:0.2mm HDPE, vapor transmission ≤1.2 g/(m²·24h)Solid Wood Flooring:15/18mm total, 3-4mm solid wear layer, UV oil or hard wax finishShock Absorption:≥53% (tested according to EN 14904)Ball Rebound:≥90%Sliding Friction:0.4 – 0.6 (dry condition, ideal for athletic safety)Service Life:10+ years under normal commercial use (15+ residential)FSC® Certified EN 14904 CE Marked DIN 18032-2KEEL STRUCTURE · Double LVL System · Patent pending
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Fushun Xin Hong Yuan Baoli Co., Ltd