9 Best Cordless Circular Saw 2026: Cut 2X4s Without Constant Battery Swaps

The DCS565B swaps the brushed motor of the best-selling DCS391B for a brushless design that extends runtime by roughly 20% and trims the weight to 6.3 lbs — noticeable when holding the saw overhead for sheathing cuts. The LED light near the blade helps track the cut line in dim conditions, and the 4950 RPM motor keeps pace with typical framing and sheet-good work. This is the better option for DeWalt 20V owners who value efficiency and lighter carry over a massive review base; the tradeoff, acknowledged even by DeWalt loyalists, is that long-term durability under daily pro use is less established — some units have shown early motor issues.

Makita's 6-1/2' brushless circular saw offers best-in-class power and balance for professional cutting, with 5000 RPM and auto speed change that adjusts torque to the load. The lightweight 7 lb design and brushless motor make it comfortable for all-day use on a 5Ah battery. This saw is best for Makita LXT users who need a high-performance 6-1/2' saw for framing and sheathing. However, the premium price and occasional motor failure in some units are tradeoffs, and dust blows toward right-handed users—a nuisance that can be mitigated with a dust extractor.

Weighing just 4.1 lbs, the Ryobi P505 is easy to handle for light cutting tasks around the house. It cuts 2x4s cleanly and fits in a small toolbox — a budget-friendly entry point for homeowners who don't need daily framing power. However, the saw struggles with thicker lumber or extended use, and battery life is short with standard packs. This makes it best for occasional DIY and craft projects, not heavy construction.

The M18 brushless motor delivers full-depth cuts while keeping the saw at 7.2 pounds - lighter than many 7-1/4 models. This reduces fatigue on job sites where mobility matters. Battery life supports medium to heavy cutting, but some units may stop working early. It best suits Milwaukee M18 owners who prioritize weight and power and can accept occasional unit variance.

This brushed M18 saw runs quietly and feels durable with magnesium guards, making it a cost-effective entry point for Milwaukee users who already own batteries. However, its 3500 RPM and brushed motor can bog down on thicker cuts like 2x4 lumber, so it is best reserved for light framing, plywood, or as a backup saw.

The Craftsman V20 6-1/2-inch saw is light and easy to handle, making it a decent choice for light tasks like cutting plywood or drywall. However, it lacks power for heavy cuts and its battery life is short, so it's best reserved for occasional DIY projects. For similar money, the Ryobi P508 offers better performance for slightly heavier use.

For under $50, this is the most affordable cordless saw. It cuts drywall and thin plywood cleanly thanks to its compact, lightweight build. But it lacks the power for 2x4s or thicker stock, battery life is short with standard packs, and some units may overheat during extended use. This limits it to light DIY tasks on thin materials.

The Makita XSH04ZB is a lightweight 6-1/2-inch circular saw (6.4 lbs with battery) that excels in tight spaces and is a natural fit for left-handed users thanks to its blade-right design. It cuts well for its size, but lacks the torque for heavy framing or repeated cuts through thick 2x lumber, and occasional blade guard binding has been reported. This suits Makita ecosystem owners who value compact storage and maneuverability over brute power.