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Hardwood floor spline is an essential fastening component designed to secure floating hardwood floors to their subfloor. This 100-foot box provides ample material for comprehensive floor installation projects. The spline works in conjunction with a mallet and spline driver tool, creating a mechanical lock that holds planks firmly in place while allowing for natural wood expansion and contraction. Ideal for professional installers and serious DIY enthusiasts, this quantity ensures you won't run short mid-project. Proper spline installation is critical for floor stability and longevity.