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This section provides an overview for carpenters' squares as well as their applications and principles. Also, please take a look at the list of 6 carpenters' square manufacturers and their company rankings. Here are the top-ranked carpenters' square companies as of December, 2024: 1.Rothoblaas, 2.JINHUA HAODE TECHONOLOGY CO.,LTD., 3.Niigata seiki Co.,Ltd..
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A carpenter's square is a right-angled, folded shape, consisting of straight longitudinal and transverse measures, connected at precise right angles to each other. It is often made of metal and used to measure the length of one side of a piece of wood or steel. It is also used to draw an accurate straight or curved line using the deflection and steel properties of that metal.
Because of its structure, carpenters' squares are tools mainly used by carpenters, architects, and other craftsmen who work with building materials. Many timbers and steel materials are round, and they are used to measure rectangular square posts with a length of one side that can be easily obtained from the measurement of their cross sections, or for advanced measurement purposes in carpentry work.
In fact, the history of the Carpenters' Square is ancient. It is said that carpenters' squares have been widely used in China since the Han Dynasty and in Japan since the Heian Period (794-1185), and books related to carpentry were published in the Edo Period.
The principle of the carpenters' square is that the front side has a metric scale in millimeters, and the back side has a number obtained by multiplying the number on the front side by the square root (root) of 2 and dividing by the circumference of the circle. The former number is sometimes referred to as the square root and the latter number as the round root.
Most carpenters' squares are made of metals such as brass (brass), stainless steel, and copper, and the above scales are usually found on both long and short right-angled measures.
As an example of how to use this system, if you apply the carpenters' squares to the diameter of a log, you can see at a glance the length of one side of the square or the circumference of that log that you can obtain from it. However, it is not easy to determine the diameter of a log that is not a circle accurately.
Therefore, using the carpenters' square to define the circumference angle, the right angle of the carpenters' square is placed on the circumference of the log, and the long and short sides of the carpenters' square is marked where it intersects the circumference of the log. Repeat this process to find the approximate center of the log, which is not exactly a circle.
Another advanced use of the carpenters' square, other than for measuring right angles, is to determine the appropriate combined length of roof slopes and columns with non-right angles by cleverly using the relationship between the square root numbers of similar triangles.
Architects, carpenters, and other professionals should choose a product that guarantees high dimensional accuracy.
*Including some distributors, etc.
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Johnson Level & Tool Mfg. Co., Inc., established in 1963 with headquarters in the USA, is a manufacturer and supplier of measuring tools. The company's products include spirit levels, laser levels, construction squares, laser distance measuring tools, and tape measures. Johnson Level & Tool Mfg. Co., Inc. tools are used by industry and individual trade professionals. The company's products are available for purchase directly from the Johnson Level website. The company supplies replacement parts and repairs for all of its products.
Stanley Black & Decker, Inc., Since 1843, is a manufacturer of hand tools such as tape measures, outdoor instruments for gardening and lawn care, power tools, storage solutions, and workplace equipment for contractors and homeowners. The Joppa Road, Towson, Maryland-based company has worked with recyclers to allow users to return end-of-life devices to be recycled. Stanley assists non-profit groups such as Habitat for Humanity, which builds houses, Skills USA, which teaches kids technical skills; and Rebuilding Together, which repairs homes and revitalizes neighborhoods. A complete lifetime warranty covers Stanley Mechanical tools.
Shinwa Rules Co. was founded in Niigata, Japan, in 1971. Shinwa Rules Co. develops a variety of measuring products including calipers, thermometers, hygrometers, laser optical apparatuses, and sheet heating elements. Above these, Shinwa develops metallic rulers and squares. Additionally, Shinwa operates as an OEM supplier for special calibrations and machine tools, special surface fabrication, and etching on metallic parts.
Jinhua Haode Technology Co., Ltd., founded in 1998, is a manufacturer of measuring tools, located in China. The company's products are aluminum spirit level, torpedo level tools, digital level and other semi-pro or professional measuring tools, such as triangular square, carpenter square, combination square, etc. It serves a full range of leveling work both in-house decorating and industrial standard working. It has established a complete industrial production base, with modern industrial plant of 30000 square meters, first-class manufacturing facilities and advanced testing equipment, like punching lines, milling lines, finishing workshop, assembling lines, professional QC team, packing lines etc.
Rothoblaas, established in 1991 and headquartered in Cortaccia, Trentino-Alto Adige, is a manufacturer specializing in high-technology solutions for heavy and mass timber, energy-efficient construction, and the net-zero building practice sector. The company's product range includes fasteners, connectors, building envelopes, and worker safety equipment. It caters to professionals such as carpenters, engineers, architects, and fall arrest system installers. It operates from a highly energy-efficient, modern, and functional building constructed primarily from timber and glass, featuring a timber and steel frame that spans 11,700 square meters of warehouse space and 7,000 square meters of office space.
Niigata Seiki Co. Ltd., founded in 1960 in Japan, is a comprehensive manufacturer, supplier, and distributor specializing in precision measurement tools, DIY goods, and imported articles. The company's product portfolio includes a wide range of precision measurement tools such as pin gauges, ring gauges, levelnics, and squares, that are celebrated for its precision and performance. The products are marketed under the original "SK" brand and find applications across various industries around the world.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Rothoblaas |
30.0%
|
| 2 | JINHUA HAODE TECHONOLOGY CO.,LTD. |
20.0%
|
| 3 | Stanley Black & Decker, Inc. |
20.0%
|
| 4 | Johnson Level & Tool Mfg. Co., Inc. |
20.0%
|
| 5 | Niigata seiki Co.,Ltd. |
10.0%
|
Derivation Method
The ranking is calculated based on the click share within the carpenters' square page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
2 | 33.3% |
|
Japan
|
2 | 33.3% |
|
China
|
1 | 16.7% |
|
Italy
|
1 | 16.7% |
