Nailing or stapling down hardwood flooring is the most common installation method in North America. The process involves nailing or stapling the wood flooring directly to a wood sub-floor. Typically, the flooring is blind nailed through the tongue into the wooden sub-floor so that the nails are not visible after the flooring is installed. This installation method works for solid and engineered wood floors. For thicker solid or engineered wood floors, check out our 15 1/2G staples or 2" floor cleats. 1 1/4" Staples are designed for engineered flooring or thinner hardwoods. If you are reading this and your house is not framed yet, install a 3/4" premium plywood for your sub-floor instead of OSB. The holding power of nails or staples will be a lot better and in turn will help minimize cracks and squeaks. For more information on preventing squeaks, look up our FAQ page or contact us for more details.