When choosing a walk behind floor saw, look for durability, cutting depth, blade size, and engine or motor power that match your project. This guide highlights five reliable options for different job sites and budgets, from gas-powered units for outdoor use to electric models ideal for indoors. Best for heavy-duty contractors, general construction crews, and smaller paving tasks alike, these picks balance performance and value. Below is a quick buying table to compare core features at a glance.
| Product | |||
|---|---|---|---|
| CORMAC CQ480 | 20 in | 13 HP gas | Depth adjustable (with easy crank) |
| CORMAC CQ480H | 20 in | GX390 gas | Depth adjustable |
| Stark USA 6.5HP Walk-Behind | 14 in | Gas | Adjustable depth |
| HOC EDCO DS20E | 20 in | 7.5 HP electric | 7 3/4 in |
| Skil SPT79A-10 (7″ worm drive) | 7 in | Gas (worm drive) | N/A (smaller blade) |
Each option targets different buyers: contractors needing rugged outdoor performance, small crews seeking portability, indoor job sites requiring clean electric power, and DIYers tackling light to medium projects. The selections below explain why each model is a strong fit and what to watch for before you buy.
CORMAC CQ480 Walk Behind Floor Saw
The CORMAC CQ480 is a rugged, gas-powered floor saw designed for concrete and asphalt cutting with a maximum 20-inch blade. It uses a 13 HP gasoline engine and includes a water tank, aiding dust control and blade cooling. The reinforced steel box frame minimizes vibrations for straighter cuts and longer blade life. A straightforward crank raises and lowers cutting depth, making depth adjustments efficient on job sites. This model suits mid- to large-scale outdoor projects where power and stability are crucial. Best for: general contractors and roadwork crews who need reliable, high-output cutting power.
Caution: Heavier rotation and vibration may require more operator effort and proper handling on uneven surfaces.
CORMAC CQ480H Walk Behind Concrete Floor Saw
This variant uses a GX390 gasoline engine with a water tank, maintaining heavy-duty performance while emphasizing durability and reduced vibrations through a reinforced steel frame. It delivers straight cuts with a rigid box frame that resists warping and prolongs saw life. The depth is easily adjusted via a simple crank, and included accessories align with standard 20-inch blade setups. Best for: outdoor professionals who prioritize straight cuts and long service life in demanding environments. Caution: ensure proper ventilation and exhaust management on enclosed sites.
Stark USA 6.5HP Walk-Behind Concrete Saw
Stark USA offers a compact walk-behind option with 6.5 HP gasoline power, and a 14-inch blade footprint suitable for sidewalks, driveways, and city streets. The design emphasizes weight distribution, stability, and maneuverability, making it a solid choice for tight job sites. A removable water tank supports effective dust control, and the saw position guide helps ensure straight cuts. Best for: smaller projects where portability and control are top priorities. Limitation: smaller blade and depth capability may limit heavy-duty applications.
HOC EDCO DS20E 20 Inch Electric Walk-Behind Saw
The EDCO DS20E is a 20-inch electric walk-behind saw powered by a robust 7.5 HP electric motor. It offers a maximum cutting depth of 7 3/4 inches, enabling deep concrete and asphalt cuts without the emissions and noise of gas-powered models. This makes it a strong indoor- or indoor-outdoor option where ventilation is a concern. Best for: indoor professionals and contractors needing clean operation and stable, deep cuts. Caution: electric models require access to reliable power and proper cord management on job sites.
Skil 7″ Worm Drive Walk Behind (SPT79A-10)
This Skil model offers a complete concrete cutting system with worm drive power and durability. The adjustable folding handle supports optimal height, and the two-finger trigger reduces fatigue for extended work. It includes a wet/dry dust management system to keep cuts clean and extend tool life, aligning with OSHA compliance. Best for: professionals who need a compact, portable solution for tighter cuts. Limitation: smaller blade size means shallower cuts and slower progress on large slabs.
SKIL 7″ Walk Behind Concrete Saw (SPT79A-10)
Another Skil option emphasizes worm-drive reliability with a segmented diamond blade, suitable for precise cuts. Features include an adjustable folding handle and a two-finger trigger for reduced fatigue, plus a dust management system for cleaner, safer operation. Best for: users who need a dependable, portable saw with clean cut performance in varied materials. Caution: blade compatibility and depth will depend on the specific diamond blade installed.
Buying Guide
What blade size do I need? For larger outdoor projects, 20-inch blades allow deeper cuts and fewer passes. Smaller blades are easier to handle but require more passes. How important is depth capacity? Choose models with depth ranges that cover your typical cut thickness to avoid overloading the saw. Gas versus electric power—what’s the best fit? Gas engines excel outdoors with superior portability, while electric units reduce emissions and noise, ideal for indoor use. Is vibration a concern? Heavier, reinforced frames and rigid box designs reduce vibration and improve cut accuracy. What about dust control? Look for water tanks and dust management features to improve visibility and blade life. Finally, consider portability and maintenance needs, including crank adjustments and easy-access components.
FAQ
- What blade size is typical for walk behind floor saws? – Most models use 14 to 20-inch blades, with 20 inches being common for larger outdoor jobs.
- Are electric walk behind saws suitable for outdoor use? – Yes, many are designed for outdoor tasks but require access to power and extension cords.
- Which saw is best for indoor construction sites? – Electric models like the HOC EDCO DS20E are preferred for indoor work due to zero direct emissions.
- What should I consider about depth when choosing a saw? – Ensure the maximum cutting depth matches the typical pavement or slab thickness you encounter.
- Is vibration control important? – Yes, models with reinforced frames and rigid boxes help maintain blade life and cut accuracy.
- How important is dust management? – Dust control features like water tanks and dust management systems improve visibility and health on site.
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