Buying a Circular Saw: A Practical Guide for Every Job

A circular saw is an indispensable tool for many DIY enthusiasts. Whether you're cutting planks to size, working with sheet materials, or building a garden shed, the right saw not only makes the job easier but also more precise. But with the many options on the market—from a powerful corded circular saw to a flexible cordless model—the choice can be overwhelming.

As a Joybuy Product Recommendation Officer, I'm here to help you get started. In this article, we'll cut through the marketing jargon and focus on what really matters: the specifications and features that suit your project. This will enable you to make an informed decision and buy the circular saw that's right for you.

What to Look for When Buying a Circular Saw?

Before we look at specific models, it's useful to understand a few basic principles. These three considerations will help you narrow down your selection.

1. Cordless or Corded: The Choice in Mobility

The first question you should ask yourself is: where will I be using the saw?

• Corded circular saw: These models offer constant, high power, ideal for long and heavy-duty jobs. You never have to worry about a dead battery. The downside is that you always need a power outlet and often an extension cord, which limits your freedom of movement.
• Cordless circular saw: These saws offer ultimate freedom. You can cut anywhere, from the attic to the back of the garden, without the hassle of cables. Modern batteries and brushless motors deliver impressive performance. Keep in mind that the battery needs to be charged and that for the toughest jobs, a corded model sometimes provides more power.

2. The Right Type for Your Project: Standard, Plunge, or Mini Circular Saw

Not all circular saws are the same. The type determines which jobs it is best suited for.

• Standard circular saw: The all-rounder for straight crosscuts on beams and planks and for sawing sheet material.
• Plunge saw: A specialist for precision work. Unlike a standard circular saw, a plunge saw allows you to start cutting in the middle of a panel. This is perfect for making cutouts for a sink or hob. These are often used in combination with a circular saw with a guide rail for perfectly straight cuts.
• Mini circular saw: A compact and lightweight version, ideal for smaller cutting jobs, thinner materials, and hard-to-reach places. They are more manageable and less intimidating for novice DIYers.

3. Key Specifications: Power, Cutting Depth, and Accessories

When comparing models, pay attention to the following technical details:

• Power: Expressed in Watts (W) for corded models or Volts (V) for cordless models. More power means the saw can cut through harder materials and thicker planks more easily.
• Cutting depth: This indicates the maximum thickness of the material you can cut. The cutting depth at 90° is the most important measurement. If you often cut thick beams, you will need a greater cutting depth.
• Accessories: An included guide rail, extra saw blades, or a storage case can significantly increase the value of a set.

Our Circular Saw Recommendations

Based on objective specifications and functionality, we have listed some popular choices for different types of DIYers.

POWERPLUS POWESET4 Circular Saw with Aluminium Case, 1200W

Why It Stands Out This set from Powerplus is a complete starter kit for the all-round DIYer. It is a corded circular saw that comes in a sturdy aluminium case with matching saw blades. You can get started right away.

Advantages

• Powerful motor: With a power output of 1200W, this saw is suitable for most types of wood.
• Generous cutting capacity: A maximum cutting depth of 65 mm at 90° is more than enough for most beams and panels.
• Comfort and control: The auxiliary handle provides more stability and precision during cutting.
• Clean workspace: Thanks to the dust extraction port, you can vacuum up the sawdust immediately and maintain a clear view of the cutting line.

Who Is It For? For the DIY enthusiast looking for a reliable and powerful saw for various jobs in and around the house, who prefers the constant power of a corded model.

Greenworks 24V Brushless Cordless Circular Saw, 165 mm

Why It Stands Out This cordless circular saw from Greenworks offers maximum freedom of movement without compromising on performance. The brushless motor is a major plus. According to Greenworks, this technology provides a longer runtime and higher cutting speed compared to traditional motors.

Advantages

• Brushless motor: More efficient, powerful, and durable than a standard motor.
• Complete freedom: No cord that gets in the way, ideal for jobs in awkward spaces.
• Good visibility: The built-in LED lighting illuminates the cutting line, which improves accuracy.
• Bevel cuts: The cutting angle is adjustable up to 45°, allowing you to make angled cuts.

Who Is It For? For the DIYer who values flexibility and mobility. Perfect for those who work in different locations and don't want to depend on a power outlet. Please note: battery and charger are sold separately.

POWERPLUS Dual Power Mini Plunge Saw POWDP25400, 20V

Why It Stands Out This is a mini circular saw with the functionality of a plunge saw. The combination of its compact size and plunge function makes this a highly specialised and useful tool for precision work.

Advantages

• Plunge function: Easily and accurately make cutouts in sheet material.
• Compact and lightweight: Very manageable for detailed work and easy to control.
• Laser guide: A built-in laser helps you follow a perfectly straight cutting line.
• Dual Power platform: The battery is interchangeable with other tools from the 20V Dual Power line by Powerplus.

Who Is It For? Ideal for the cabinet maker, interior fitter, or hobbyist who needs to make precise cuts in materials like laminate, OSB, or kitchen worktops. An excellent choice for those looking for a circular saw for wood for finer finishing work. Please note: battery and charger are sold separately.

Haven't Found the Right Saw Yet?

Every project is unique. If these recommendations aren't exactly what you're looking for, don't worry. We have a wider range of tools that might be a better fit for your job.

Check out our full collection of sawing tools for more options, from handheld circular saws to mitre saws and jigsaws.

Frequently Asked Questions About Circular Saws

What is the difference between a circular saw and a plunge saw?

A standard circular saw has a partially visible blade protected by a retracting guard. You always start cutting from the edge of the material. A plunge saw has a blade that is completely enclosed within the housing. You place the saw on the material and then plunge the blade straight down into the wood. This makes it possible to start a cut in the middle of a panel.

How deep can a circular saw cut?

The cutting depth varies by model and is determined by the diameter of the saw blade. The models in this article range from 28 mm for the mini plunge saw to 65 mm for the corded Powerplus circular saw. Always check the 'cutting depth at 90°' specification to see if it is sufficient for the material you want to cut.

Do I need a guide rail for my circular saw?

A circular saw with a guide rail is not strictly necessary, but it is highly recommended for making long, perfectly straight cuts in sheet material. It provides much higher precision than cutting freehand or with a simple side fence. For tasks like cutting doors or kitchen worktops to size, a guide rail is almost indispensable for a professional result.