Rethinking the Sanding Process: How Planetary Technology is Extending the Life of Floors and Contractors
Hardwood flooring is one of the most tradition-driven trades in the country. Many contractors perform sanding and finishing the way their predecessors did and have favored tools that have been handed down from generation to generation, including the belt
sander.
When NWFA Sand and Finish Guidelines included planetary sanders (multi-head sanders) in the sanding process in 2016, it was a pivotal moment. In an industry where the sanding process rarely has shifted, this signals more than a new tool preference, it marks a process evolution. For decades, most innovation has focused on finishes while sanding has remained the same. Planetary sanding equipment is changing that.
FROM EQUIPMENT UPGRADE TO WORKFLOW SHIFT
Planetary sanders sand the floor in multiple directions simultaneously rather than cutting in a single, linear path like a traditional belt sander. This type of sanding equipment balances
performance, ease of use, and ease of transport into one powerful package. Today, most sanding equipment manufacturers offer planetary sanding equipment, a clear sign that multidirectional sanding is not a passing trend, but an emerging standard.
The real difference isn’t just mechanical. It’s procedural. Many contractors now use a belt
sander for a single rough cut and then complete the remainder of the sanding sequence with a planetary machine. On newer layouts that can be difficult to sand with a belt sander such as patterned installations and custom designs, some crews are abandoning the traditional belt sander altogether.
One of the key benefits is control. Multi-directional sanding produces a more consistent scratch pattern, allowing for flexible grit progression. Instead of fighting the grain, contractors can move with the floor’s layout, particularly important for design-driven floors such as herringbone and chevron that are becoming increasingly popular.
LESS EDGING, LESS STRAIN
An immediate advantage is how close planetary sanders can work to the wall – often within an inch. Traditional belt machines typically leave six to eight inches that must be addressed with an edger. By reducing edging time by 50 to 80 percent, contractors create labor efficiency and better ergonomical worksites.
Edging is one of the most physically demanding parts of a contractor’s job. Fewer hours bent over with an edger means less strain on shoulders, backs, and knees. In addition, planetary sanders are more maneuverable and balanced, requiring less force to operate.
Extending the life of the floor is important. Extending the life of the technician is equally critical. As workforce shortages continue to impact the trade, equipment that supports long-term physical sustainability becomes a competitive advantage.
THE FLATTENING AND GRIT SEQUENCING PROCESS
Success with planetary sanding starts with flattening. Ensuring the initial cut adequately flattens the floor before progressing through grits is essential. High-quality abrasives and sandpaper designed for aggressive grain removal particularly are effective in planetary systems.
EXTENDING THE LIFE OF THE FLOOR
Because multi-directional sanding can remove less of the wear layer compared to traditional belt sanding, floors typically can be refinished more times during their lifespan. While solid wood floors may be capable of being sanded five to seven times using traditional methods,
planetary machines may allow for additional re-sands as less wood is being removed, extending the life of the floor, depending on the wood species, type of floor, and specific project.
The sustainability implications also are significant. Preserving more of the wear layer allows floors to remain in homes and commercial spaces longer, reducing material replacement and environmental impact. Recent research by IVL Swedish Environmental Research shows that refinishing a floor reduces carbon emissions by an average of 89 percent for wood with a 97 percent energy savings when compared to floor removal and replacement.
Planetary sanding also has proven valuable in historic renovations, where aggressive belt sanding risks removing too much material. Contractors specializing in preservation increasingly are relying on multi-directional systems to refinish delicate floors safely and effectively.
DESIGN-DRIVEN POSSIBILITIES
Modern hardwood design is more complex than ever. Textured finishes and patterned installations are growing in popularity across residential and commercial spaces, creating another opportunity for planetary systems to shine. With accessories like wire brush kits that create dimensional, textured looks, and advanced abrasive systems that ensure consistent scratch removal across intricate layouts, multi-directional sanding opens a
myriad of design potential as part of the aesthetic strategy.
DUST CONTAINMENT AND HEALTH
Another advantage that can be overlooked with planetary sanders is dust containment. Because planetary sanding typically removes less material per pass, dust generation can be more controlled when paired with modern high-efficiency dust containment systems. Cleaner jobsites improve finish quality and reduce contamination risk, while also protecting technicians from prolonged exposure to wood dust, a recognized respiratory hazard.
Cleaner air, reduced cleanup time, and better finish outcomes all contribute to a healthier, more efficient jobsite and end product.
SHIFTING THE INDUSTRY MINDSET
There still remains a perception that large belt machines save more time. In certain heavy-removal scenarios, they may. But in other applications, reduced edging, improved scratch consistency, and fewer rework issues offset that perceived advantage.
The increasing adoption of multi-directional sanding and the growing number of companies investing in these machines signal that this is more than equipment diversification. It’s a shift in best practices that will have implications for years to come. Planetary sanding is delivering quicker, flatter surfaces with greater design flexibility, improved ergonomics for
contractors, and longer floor lifecycles. For contractors looking to protect their craft, crews, and customers’ investments, rethinking the sanding process is of the utmost importance.
Zack Clavin is a tech and training specialist for Bona in Englewood, Colorado. He may be reached at zack.clavin@bona.com.