How to Choose a Mitre Saw
Whether you are trimming baseboards, framing a deck, or cutting crown moulding, the right mitre saw delivers accurate, repeatable crosscuts and mitres. This guide explains the key differences between saw types, blade sizes, and features so you can match the tool to your projects and budget.
Quick answer
For most DIYers and serious woodworkers, the DeWalt DWS780 12-inch sliding compound mitre saw offers the best combination of cut capacity, accuracy, and dust collection. If you need a budget-friendly option for trim work, the Makita LS1018L 10-inch saw delivers reliable performance without the sliding mechanism.
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Research updated June 2026.
DeWalt DWS780
12-inch sliding compound saw with XPS cross-cut positioning system for precise cuts every time.
What type of mitre saw do you need?
The first decision is the saw type. A standard mitre saw cuts straight down and pivots left and right for mitre angles. A compound mitre saw adds a bevel tilt for angled cuts on the vertical axis, essential for crown moulding. A sliding compound mitre saw has rails that let the blade move forward and backward, increasing the width of material you can cut. If you regularly rip 2x12 lumber or wide trim, a sliding saw is worth the extra cost and weight.
Blade size: 10-inch vs 12-inch
Blade diameter determines the depth and width of cut. A 10-inch blade cuts roughly 5.5 inches deep and 6.5 inches wide at 90 degrees. It is lighter, cheaper, and easier to transport. A 12-inch blade cuts about 6.75 inches deep and 8 inches wide, handling larger stock like 4x4 posts and wide crown moulding. The trade-off is weight and price. For most home workshops, a 10-inch saw is sufficient; for heavy framing or large trim, a 12-inch saw saves time.
Sliding vs non-sliding
Sliding saws use rails to extend the blade forward, increasing crosscut capacity. Typical non-sliding 10-inch saws cut up to 6 inches wide, while sliding versions cut 12 to 14 inches wide. Sliding saws are heavier and take up more bench space. If you only cut narrow trim and small stock, a non-sliding saw is simpler and more accurate. For deck boards, large baseboards, or sheet goods, sliding is essential.
Motor power and speed
Most mitre saws use a 15-amp universal motor spinning at 4,000 to 5,000 RPM. Higher amperage does not always mean better cut quality, but it helps maintain speed under heavy loads. Brushless motors are becoming more common in cordless models, offering longer runtime and less maintenance. For corded saws, 15 amps is the standard; anything less may struggle with dense hardwoods.
Bevel and mitre ranges
Look for a saw that mitres at least 45 degrees left and right. Many saws offer 50 or 60 degrees for tighter cuts. Bevel range should be 45 degrees left and right for compound cutting. Detent stops at common angles (0, 15, 22.5, 30, 45 degrees) help you set repeatable cuts quickly. A saw with positive stops and a clear scale reduces measurement errors.
Dust collection
Mitre saws produce large volumes of fine dust. A good dust collection system includes a dust bag, a rear port for a shop vacuum, and shrouds around the blade. The DeWalt DWS780 and Bosch GCM12SD have some of the best dust collection in the category. If you work indoors, prioritize a saw with a vacuum adapter and a low-dust design.
What to check before buying
Before purchasing, verify the saw's cut capacity against your typical material sizes. Measure the bench or stand space you have available, especially for sliding saws that need rear clearance. Check the weight if you plan to move the saw frequently. Look at the warranty length and parts availability for the brand. Finally, read owner reviews on retailer sites to see common complaints about accuracy drift or fence alignment.
Mistakes to avoid
Buying a saw with too small a cut capacity is the most common error. A 10-inch non-sliding saw cannot cut a 2x12 in one pass. Another mistake is ignoring bevel range: if you plan to cut crown moulding, you need a compound saw that bevels both left and right. Do not assume all blades are the same; a cheap blade on a good saw produces poor cuts. Finally, do not skip the dust collection setup, as mitre saws create a lot of airborne particles.
| Product | Best For | Blade Size | Sliding | Rating |
|---|---|---|---|---|
| DeWalt DWS780 | Overall performance | 12 in | Yes | 4.8/5 |
| Makita LS1018L | Budget non-sliding | 10 in | No | 4.6/5 |
| Bosch GCM12SD | Compact sliding | 12 in | Yes | 4.7/5 |
| Milwaukee 2736-20 | Cordless power | 10 in | Yes | 4.5/5 |
| Ryobi TSS702 | Entry-level value | 10 in | Yes | 4.3/5 |
DeWalt DWS780
Best OverallPros
- XPS shadow line for accurate cuts
- Excellent dust collection
- Sturdy fence and base
Cons
- Heavy at 56 pounds
- No laser guide included
The DWS780 is the most popular 12-inch sliding compound mitre saw for good reason. Its 15-amp motor cuts through hardwoods and pressure-treated lumber cleanly. The XPS cross-cut positioning system projects a shadow line exactly where the blade will cut, which many users find more accurate than a laser.
Owner reviews consistently praise the saw's accuracy out of the box and its ability to hold settings over time. The dust collection is among the best in the class, especially when connected to a shop vacuum. The main drawbacks are the weight and the lack of a laser, but the XPS system compensates well.
Makita LS1018L
Best Non-SlidingPros
- Lightweight and portable
- Accurate mitre detents
- Easy to set up
Cons
- Limited cut width (6 in)
- No sliding mechanism
The LS1018L is a compact non-sliding compound mitre saw that excels at trim work and small crosscuts. It weighs only 28 pounds, making it easy to carry to job sites. The mitre detents are crisp and the bevel adjustment is smooth.
Owner reviews highlight the saw's accuracy for crown moulding and baseboards. The lack of a sliding mechanism means it cannot cut wide boards, but for its intended use it is very reliable. The dust bag is small, but a vacuum adapter is included.
Bosch GCM12SD
Best Compact SlidingPros
- Axial-glide system saves space
- Smooth sliding action
- Excellent bevel range
Cons
- Very heavy
- Fence can be tricky to align
The Bosch GCM12SD uses a unique axial-glide mechanism that slides the blade without traditional rails, saving significant bench depth. It offers a full 12-inch cut capacity with a compact footprint. The bevel range extends to 47 degrees, useful for steep crown moulding.
Users report that the saw is very smooth and accurate, but it is heavy at 65 pounds. The fence system has a few more adjustment steps than some competitors. Dust collection is good when connected to a vacuum.
Milwaukee 2736-20
Best CordlessPros
- Powerful brushless motor
- Runs on M18 battery system
- Good cut capacity for 10 in
Cons
- Battery and charger sold separately
- Heavier than some cordless rivals
The Milwaukee 2736-20 is a cordless sliding compound mitre saw that delivers corded-like performance. The brushless motor provides consistent power and longer runtime. It cuts up to 2x12 lumber and 4x4 posts with ease.
Owner reviews note that the saw is well-built and accurate, but the tool-only price does not include batteries. Users already in the M18 ecosystem will find this a natural addition. The dust collection is decent, but a vacuum improves it significantly.
Ryobi TSS702
Best BudgetPros
- Affordable price
- Sliding mechanism included
- LED cut line indicator
Cons
- Less accurate out of box
- Dust collection is basic
The Ryobi TSS702 is a budget-friendly sliding compound mitre saw that offers good value for DIYers. It includes a 10-inch blade, a sliding rail system, and an LED light to show the cut line. The saw cuts up to 2x10 lumber comfortably.
Owner reviews mention that the saw requires some calibration out of the box to achieve square cuts. The dust bag is small and does not capture much fine dust. For occasional use around the home, it is a capable tool at a low price point.
FAQs
What is the difference between a mitre saw and a compound mitre saw?
A standard mitre saw only pivots left and right for angled cuts. A compound mitre saw also tilts the blade for bevel cuts, allowing you to cut angles on two planes simultaneously.
Do I need a sliding mitre saw?
You need a sliding saw if you cut boards wider than 6 inches, such as 2x12 lumber or wide baseboards. For narrow trim and small stock, a non-sliding saw is lighter and more accurate.
What size mitre saw should I buy?
A 10-inch saw is sufficient for most DIY tasks and is lighter. A 12-inch saw cuts deeper and wider, making it better for large crown moulding and framing lumber.
Can a mitre saw cut metal?
Yes, with a proper abrasive or carbide-tipped metal-cutting blade. Standard wood blades should not be used on metal due to safety and heat risks.
How do I set up a mitre saw for accurate cuts?
Check the blade is square to the fence and table using a combination square. Adjust the bevel and mitre detents if needed, and always use a sharp blade for clean cuts.
What is the best mitre saw for crown moulding?
A sliding compound mitre saw with a 12-inch blade and bevel range of at least 45 degrees left and right is ideal. The DeWalt DWS780 and Bosch GCM12SD are top choices.
Are cordless mitre saws as powerful as corded?
Modern brushless cordless saws like the Milwaukee 2736-20 deliver comparable power to corded models, but runtime depends on battery capacity. They are best for job site portability.
How much should I spend on a mitre saw?
Entry-level saws cost around $100 to $200. Mid-range models from $300 to $500 offer better accuracy and features. Premium saws from $600 to $1,000 provide the best build quality and dust collection.
What safety features should I look for?
Look for an electric brake that stops the blade quickly, a blade guard that retracts smoothly, and a trigger lock-off switch. Always use the saw's clamp to secure the workpiece.
Can I use a mitre saw for ripping boards?
No, mitre saws are designed for crosscuts only. For ripping boards lengthwise, use a table saw or circular saw with a rip fence.
Our verdict
For most users, the DeWalt DWS780 is the best overall mitre saw, offering a perfect balance of power, accuracy, and dust collection. If you are on a tight budget and only cut narrow trim, the Makita LS1018L provides reliable performance at a lower price. Choose a cordless model like the Milwaukee 2736-20 if you need portability without a power cord.