Best Carpentry Squares of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 13, 2025

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Carpentry squares are essential tools for any woodworking project. These squares are used to ensure that each cut and joint is perfectly square, which is critical for creating strong and precise structures. There are several types of carpentry squares available, including framing squares, combination squares, and speed squares. Framing squares are larger and used for larger projects, while combination squares are smaller and more versatile. Speed squares are particularly useful for measuring angles and making quick cuts. With a carpentry square in hand, woodworkers can ensure that their projects are accurate and durable.

At a Glance: Our Top Picks

Swanson Tool Co S0101 7 Inch Speed Square Cover #TOP 1
Swanson Tool Co S0101 7 Inch Speed Square
ftb score rating icon 9.9
Irwin Tools Combination Square Cover #TOP 2
Irwin Tools Combination Square
ftb score rating icon 9.8
Thorvald 6-in-1 Master Square Cover #TOP 3
Thorvald 6-in-1 Master Square
ftb score rating icon 9.6

Top 10 Carpentry Squares

#TOP 1

Swanson Tool Co S0101 7 Inch Speed Square

S0101
Blue
7 inch
Swanson Tool Co S0101 7 Inch Speed Square Cover
SWANSON Tool Co S0101 7 Inch Speed Square, Blue

The Swanson Tool Co S0101 7 Inch Speed Square is a pocket-sized tool that features multiple gradations for marking common, hip, valley, and jack rafters. It comes with a comprehensive guidebook and includes common features of 5 different tools, making it a versatile tool for every tradesman's tool bench. The 1/4-inch spaced scribing notches and the diamond cutout make it easy to use, and the black gradations against its non-glare, matte finish make for easy reading. It simplifies important tasks, and when used as a saw guide, it makes truing up a board easy.

What We Like
Versatile and easy to use
Excellent build quality
Includes helpful instruction book
Real value for the money
Suitable for DIY and professionals
What We Don't Like
Requires some initial learning
#TOP 2

Irwin Tools Combination Square

1794469
Blue
12-inch
Irwin Tools Combination Square Cover
IRWIN Combination Square, 12”, 45-90 Degree Marking, Stainless Steel (1794469)

The Irwin Tools Combination Square is a durable and versatile tool for carpentry. Its black precision-etched scales, cast zinc body, and rust-proof stainless steel blade allow for accurate measurements and long-lasting use. It can be used for 90° and 45° marking, and also as a gauge for transferring measurements, making it a convenient addition to any tool collection.

What We Like
Hefty and durable build
Accurate measurements
Easy-to-read markings
Good customer service
Great value for price
What We Don't Like
Aluminum can be easily dinged
#TOP 3

Thorvald 6-in-1 Master Square

51gd5
Black
Thorvald 6-in-1 Master Square Cover
THORVALD 6-in-1 Carpenter Square 7 inch (1/16" Precision) T Square Multi-Purpose Carpenter Tools : Wrench, Square, Protractor, Ruler, Marking Gauge, Drill Gauge, Includes 2-in-1 Carpentry Pencil

Introducing the Thorvald Master Square - the ultimate 6-in-1 carpenter tool for woodworking enthusiasts. This versatile accessory combines a square, two protractors, three marking gauges, two rulers, a drill gauge, and a wrench, all in one convenient tool. With the Thorvald Master Square, you can save time and work smarter by easily measuring, tracing, and taking angles without the need for multiple tools. Made of 4mm-thick aluminum, this durable square features laser-engraved inscriptions that won't fade. The precise 1/16" graduations ensure accurate measurements for exceptional work. Plus, the included 2-in-1 carpenter pencil with a removable grip provides added comfort and versatility. Enjoy the convenience of having a whole toolbox in one square with the Thorvald Master Square.

What We Like
Accurate predrilled holes
Durable mechanical pencil
High contrast markings
Well constructed and sturdy
Variety of useful features
What We Don't Like
Painted markings may wear off
Lead in pencil may be fragile
#TOP 4

Swanson Tool Co., Inc SW1201K Value Pack 7" & Big 12" Speed Square

SW1201K
blue
Swanson Tool Co., Inc SW1201K Value Pack 7" & Big 12" Speed Square Cover
SWANSON Tool Co., Inc SW1201K Value Pack 7 inch Speed Square and Big 12 Speed Square (without layout bar) ships with Blue Book

The Swanson Tool Co., Inc SW1201K Value Pack 7 inch and Big 12 inch Speed Square is a great value pack for every carpenter, construction professional, roofer, and DIYer. With multiple gradations included, you can make the exact mark you need, and it's useful for determining angles and making square cuts on boards. The heavy-gauge billet aluminum alloy construction means you have a rugged tool, and its die-cast design provides increased and reliable accuracy. When used as a saw guide, the Speed Square makes truing up a board easy. Made in the USA since 1925, the Swanson Speed Square and the Big 12 Speed Square are the perfect squares for every project and job.

What We Like
High-quality construction
Multiple useful applications
Lightweight yet durable
Easy to read markings
Comes with instructional manual
What We Don't Like
Long shipping time
#TOP 5

IRWIN Tools Carpenter Square, Steel, 8-Inch by 12-Inch (1794462)

1794462
Silver
8-inch X 12-inch
IRWIN Tools Carpenter Square, Steel, 8-Inch by 12-Inch (1794462) Cover
IRWIN Tools Carpenter Square, Steel, 8-Inch by 12-Inch (1794462), Silver

IRWIN Carpenter Square is a professional-grade tool that features permanent deep stampings, rust-proof and weather-resistant steel body, and multiple scales including 1/8-, 1/10-, 1/12-, and 1/16-inch. This versatile tool also includes rafter tables, brace and octagon scales, and Essex board measure. With IRWIN Carpenter Square, you can make precise measurements and cuts for your carpentry projects. The permanent deep stampings ensure the durability of the tool, while the rust-proof and weather-resistant steel body makes it a long-lasting tool to have in your toolbox. The multiple scales and additional features make IRWIN Carpenter Square a valuable tool for carpenters of all levels.

What We Like
Perfect condition upon arrival
Deeply embossed, clear markings
Heavy steel, lies flat
Thick clear coat for protection
Good value for money
What We Don't Like
Not black markings
Adjustment needed for accuracy
#TOP 6

iGaging Layout Square Mark II Set

36-LS-0712-1
iGaging Layout Square Mark II Set Cover
iGaging Layout Square Mark II Set of Two 7" & 12" w/Center Finder Bevel Gauge

The iGaging Layout Square Set combines two essential tools, a 7-inch and a 12-inch square, into one handy package. With precision CNC construction, you can trust that these squares will give you accurate 90-degree angles every time. The laser-engraved markings on anodized aluminum ensure that your measurements are clear and long-lasting. Plus, the marked holes for every 16th of an inch allow for precise and easy marking, making your carpentry tasks smoother. The included magnetic base and mechanical pencil enhance usability, giving you everything you need for efficient work.

What We Like
Well-made tools
Accurate measurements
Nice storage case
Good value for price
What We Don't Like
Quality control issues
Inconsistent measurements
#TOP 7

WORKPRO Rafter and Combination Square Tool Set

NOVASAT-0409-1513-35
Blue
WORKPRO Rafter and Combination Square Tool Set Cover
WORKPRO Aluminum Alloy Carpenter Square and Zinc-Alloy Square Ruler Set - 7 in. Rafter Layout Tool and 12 in. Combination Square Combo

The WORKPRO Rafter and Combination Square Tool Set is a durable and user-friendly tool set for carpenters. The rafter square is made of heavy-gauge aluminum alloy and has permanent deep markings and white graduations for maximum readability. The combination square has a 12-inch stainless steel ruler with 3 types of minimum scale values. The lipped fence on the rafter square allows for easy bracing flush with wood and the spring screw on the combination ruler makes it easy to detach the ruler for measurement. The set is versatile and can be used for cross-cutting lumber with accuracy.

What We Like
Great quality tools
Accurate measurements
Clear readable markings
Reasonably priced
Sturdy metal construction
What We Don't Like
Minor readability issues
Small manufacturing imperfections
#TOP 8

Mr. Pen 8x12 L Square Ruler

FR01
Black
Mr. Pen 8x12 L Square Ruler Cover
Mr. Pen- Carpenter Square, Framing Square, 8 inch x 12 inch, Carpenters Square, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel Square

The Mr. Pen 8x12 L Square Ruler is a great tool for carpenters, framers, and hobbyists alike. It features imperial units on one side with 1/16-inch graduations and metric units on the other side with mm graduations. The carbon steel material is sturdy and durable against rusting, and the bright white on black design makes it easy to read. Customers have praised its quality and accuracy, making it a great choice for any carpentry application.

What We Like
Sturdy construction
Excellent for artists
Standard and metric measurements
Great customer service
Convenient size for crafts
What We Don't Like
Reflective surface in photos
Dust visibility in pictures
#TOP 9

Milescraft 8409 MC-Square150

8409
Milescraft 8409 MC-Square150 Cover
Milescraft 8409 MC-Square150 Imperial Framing Square – 6” x 4” Aluminum Carpenter Square for Woodworking with Removeable Fence

The Milescraft 8409 MC-Square150 is an aluminum framing and woodworking square with inside and outside scales for measuring and marking the inside and outside of your work piece. It features 6” (150mm) square with 1/4″ notch spacing, two quick angle finders for 30° and 45°angles, elongated notches for accurate line scribing, and anodized aluminum material with 3mm thickness. Customers have found it to be accurate and handy, but some have noted that it has a rough finish and may not be perfectly square.

What We Like
Accurate measurements
Easy-to-read markings
Durable etched design
Compact and portable
Good value for price
What We Don't Like
Potential quality variability
Made from cheaper materials
#TOP 10

IRWIN Tools Rafter Square, Hi-Contrast Aluminum, Blue, 7-Inch (1794463)

1794463
Blue
7-inch
IRWIN Tools Rafter Square, Hi-Contrast Aluminum, Blue, 7-Inch (1794463) Cover
IRWIN Tools Rafter Square, Hi-Contrast Aluminum, Blue, 7-Inch (1794463)

The IRWIN Rafter Square is a professional tool designed for carpentry work. Its permanent deep stampings are durable and the aluminum body is rust-proof and weather-resistant. The square features multiple scales, including 1/8-, 1/10-, 1/12-, and 1/16-inch, as well as rafter tables, brace and octagon scales, and Essex board measure. The yellow markings on the blue background make it easy to read. With the IRWIN Rafter Square, you can take accurate measurements and make precise cuts. The durable construction ensures that it will last for years, even with frequent use. The multiple scales and rafter tables make it a versatile tool that can be used for a variety of tasks. The high-contrast markings make it easy to read in any lighting conditions.

What We Like
High contrast markings
Sturdy aluminum construction
Accurate measurements
Lightweight and portable
Versatile for various projects
What We Don't Like
Higher price point
Smaller size may limit use
Buying Guide Image

The Ultimate Carpentry Squares Buying Guide

The Ruler

The first side of this tool is marked in inches – just like the ruler. The second side of this tool has an elevated edge, which you can butte up to a wood piece or the workpiece of your choice. In addition, the third side is the longest side of the square, which has degree marking. You can use it with a miter saw.

Size

It is important to know that carpentry squares come in different sizes. However, the most common size is a 7-inch triangle. Most people also tend to buy a 12 inches triangle. The type of material and the size of your project will determine how large of a carpentry square you will need to purchase.

Material

If you are a framer and you work in places that are high above the ground, then you need to look for aluminum because it is very lightweight. In addition, if you work in a shop, you must take into consideration the steel squares as you don’t want to carry them around. Some users tend to go for extra weight while they perform the task of measuring and marking.

Plastic carpentry square is typically recommended – in case you don’t find other types of squares – or if there is limited availability on the market. Although light in weight, these types of squares have shorter life spans – especially in woodworking or in the construction field because they are prone to easy breaking.

Markings

This is also an important feature that you need to consider while buying a carpentry square. You will find squares that have stamped or printed markings. Well, to buy a carpentry square with stamped marketing will not fade or rub off after heavy use.

There are other features such as protractors, which are also very useful – when you deal with hard-to-draw shapes or circles while working and cutting. In addition, levels are useful for roof pitching as well as for finding a wide range of different angles.

Wrapping up, whatever material, size, or the price you buy a carpentry square in, it is important to take some time to test the tool to ensure the measurements are accurate. Lastly, you need to check for defects or warps in the metal as well – as this will make sure you get the most out of this tool.

Frequently Asked Questions (FAQs)

1. What are the squares used in carpentry?

In carpentry, there are various types of squares used as guides for establishing right angles or mitre angles. Some common types of squares include speed squares, try squares, combination squares, and carpenter's squares. These squares are typically made of metal and are essential tools in carpentry.

2. What are the four types of squares used in woodworking?

Four common squares used in woodworking are the framing square, speed square, combination square, and try-square. These squares are versatile tools that are used for various woodworking projects, from small crafts to residential structures.

3. How accurate are carpenter squares?

Carpenter squares are generally accurate, with an accuracy level of around ±0.0573 degrees. They typically have inch measurements on both sides, with gradations up to 8 inches on the outside and 6 inches on the inside for smaller scales. For larger scales, the outer measurement can go up to 12 inches, while the inner measurement is around 11 inches.

4. What are the three kinds of squares normally found in a wood shop?

In a wood shop, you can commonly find speed squares, carpenter squares, and rafter squares. These squares are essentially the same tool, just known by different names. They are triangle-shaped tools that are widely used in woodworking.

5. What is the difference between a try square and a mitre square?

A try square and a mitre square are similar in design, with a stock and a blade set at right angles. However, the main difference is that the blade of a try square is set straight on the stock, while the blade of a mitre square is set at a 45-degree angle to the stock.

6. What is the difference between a speed square and a carpenter square?

A speed square and a carpenter square are essentially the same tool, just known by different names. They are both triangle-shaped tools commonly used in woodworking and carpentry projects. Speed squares are well-suited for marking accurate 90-degree and 45-degree lines.

7. What is the difference between a carpenter square and a framing square?

A carpenter square, also known as a framing square or speed square, is a type of carpentry tool used by carpenters, builders, and home improvement enthusiasts. It is a versatile tool that is essential for various carpentry projects.

Editor's Notes

During our carpentry square research, we found 24 carpentry square products and shortlisted 10 quality products. We collected and analyzed 207,922 customer reviews through our big data system to write the carpentry squares list. We found that most customers choose carpentry squares with an average price of $16.75.

The carpentry squares are available for purchase. We have researched hundreds of brands and picked the top brands of carpentry squares, including Swanson Tool Co., Inc, IRWIN, THORVALD, Swanson Tool, iGaging. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.

Carpentry Squares Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Swanson Tool Co., Inc IRWIN THORVALD Swanson Tool IRWIN iGaging WORKPRO Mr. Pen Milescraft IRWIN
Material Swanson Speed Square Stainless Steel, Zinc Aluminum Aluminum Tool Steel Aluminum Alloy Steel Carbon Steel Aluminum Aluminum
Style 7" Speed Square Regular Combination Square Master Square 6-in-1 Speed Square 3 Piece Value Pack Classic 7" & 12" + Pencil rafter&combination square tool set L Square,Square Square Square
Color Blue Blue Black blue, black Silver - Blue Black Red, Black Blue
Graduation Range 1/8 Inches 1/16 Inches - 1/4 Inches 1/16 Inches - 1/16&1/32&3/64 Inches 1/16 Inches 1/8 Inches 1/16 Inches
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.5
ftb score rating icon 9.5
ftb score rating icon 9.5
ftb score rating icon 9.3
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 8.8
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