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This section provides an overview for leveling strings as well as their applications and principles. Also, please take a look at the list of 7 leveling string manufacturers and their company rankings. Here are the top-ranked leveling string companies as of August, 2025: 1.Smith Surveying Equipment Limited, 2.Hardwick & Sons, 3.WOOD SHED LBR & HDWE SUPPLY.
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Categories Related to Leveling Strings
Leveling String is a tool used in construction to mark horizontal lines. It's typically hooked onto a nail and can be secured into a block or concrete. This string is essential for visualizing straight lines between two points in the air and comes in various colors like yellow and pink for visibility. It is available in different materials and thicknesses.
Leveling string is crucial for ensuring horizontality in construction tasks such as piling bricks, building formwork, and civil engineering. It's used to check horizontal lines and parallelism, ensuring it is stretched without sagging or touching other objects. The string is also valuable in DIY projects for establishing level and parallel lines.
Leveling strings are made from either synthetic fibers like polyester, polyethylene, nylon, and polypropylene, or natural fibers like cotton and silk. Synthetic fibers offer high water resistance, with polyester and polypropylene being particularly strong and hard to stretch. Natural fiber strings, while not water-resistant, can be used for various other applications.
Leveling strings are designed for repeated attachment and removal. The technique of tying and securing the string plays a crucial role in its effectiveness. Thinner strings are lighter and less prone to sagging but can be less visible and more prone to breaking.
Leveling string has been historically used in construction, particularly for foundation work and checking the placement of reinforcement bars in reinforced concrete. This process ensures the durability and strength of a structure's foundation.
Laser leveling, a modern alternative to traditional leveling strings, uses a laser beam for level measurements. This method eliminates measurement errors associated with string sagging, speeds up the measurement process, and allows for one-person operation, enhancing work efficiency. Despite these advantages, the affordability and flexibility of leveling strings mean they continue to be used alongside laser leveling tools in various construction scenarios.
*Including some distributors, etc.
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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.
Esco Company Ltd., established in 1972 and headquartered in Osaka, Japan, is a supplier of maintenance, repair, and operations tools, parts, and equipment. Some of its products include test instruments, magnets, office furniture, protective equipment, and generators, and it serves customers in various fields, including construction sites and office buildings. The company was started to market tools to the air conditioning and refrigeration industry in Japan, and every year since then, it has published a catalog of its tools. In 2015, the catalog reached 110,000 products, and the company has approximately 149,000 items in stock for delivery.
AS ONE Corporation, established in 1962, is a Japanese supplier of laboratory instruments and consumables, headquartered in Nishi Ward, Osaka. Through their website, AXEL GLOBAL, the company offers a selection of 3 million products. These include physical and chemical science instruments such as universal and measuring instruments, as well as laboratory instruments for cultivation, separation, and analysis. They also provide research facility equipment such as storage equipment and laboratory chairs. AS ONE extends its offerings to include industrial instruments like dehumidifying storage and organization and conveyance equipment. Additionally, AS ONE serves the healthcare sector with products for hospitals and nursing homes.
IMEX, founded in the UK, is a supplier of laser measuring and leveling tools. The company's product portfolio includes a range of laser distance measures that provide quick and precise measurements for a variety of applications, including distance, area, volume, and indirect measurements as well as a selection of rotary lasers suitable for leveling, grading, and aligning tasks. The company has dealers in Europe, Australia, New Zealand and Southeast Asia.
Ranking as of August 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Smith Surveying Equipment Limited |
17.6%
|
| 2 | Hardwick & Sons |
17.6%
|
| 3 | WOOD SHED LBR & HDWE SUPPLY |
17.6%
|
| 4 | IMEX |
17.6%
|
| 5 | ESCO Company Ltd. |
17.6%
|
| 6 | AS ONE Corporation |
5.9%
|
| 7 | Shinwa Rules Co., Ltd. |
5.9%
|
Derivation Method
The ranking is calculated based on the click share within the leveling string page as of August 2025. 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 | 40.0% |
|
Japan
|
2 | 40.0% |
|
United Kingdom
|
1 | 20.0% |
184 products found - Page 2
184 products - Page 2
Takumi Co., Ltd.
380+ people viewing
■Clearly visible thickness and color - Made of elastic rubber that makes it easy to draw straight lines. - Thick and vivid rubber thread for photog...
3 models listed
Cains Co., Ltd.
100+ people viewing
Comes with a cutter blade, so you don't need scissors. If you press the shaft with your finger or stick it in a pen and pull the thread, it will ro...
Cains Co., Ltd.
100+ people viewing
■Features -Uses Honeywell's Spectra as PE material. ・The 8 parts were finished using the MX2 construction method to improve wear resistance and pr...
Takumi Co., Ltd.
600+ people viewing
Last viewed: 1 day ago
■Comes in a case with a cutter so it won't get dirty easily ・A durable container with a cutter and thread stopper. - Thread can be taken out smoot...
6 models listed
Cains Co., Ltd.
110+ people viewing
Last viewed: 6 hours ago
Super poly water thread that is lightweight and strong even when wet. ■Features The strong and vibrant color of virgin pellets makes them easy to ...
Takumi Co., Ltd.
260+ people viewing
Last viewed: 10 hours ago
■ Strong against water, hard to stretch, thin but strong - Thin and strong thread coated with resin. - Highly visible fluorescent color recommended...
2 models listed
Cains Co., Ltd.
120+ people viewing
Last viewed: 1 day ago
■Features ・With thread tension guide ・Easy and accurate stringing of blocks. ・For stacking 150mm wide blocks ・Using EA628AS-104 can support 120...
Cains Co., Ltd.
160+ people viewing
This is an economy type of water thread. Strong, vibrant colors from virgin polyethylene pellets.
Cains Co., Ltd.
100+ people viewing
Even though it's thick, it's light, so it spreads easily. ■Features - Thick and light, with little sagging, making it ideal for stringing long dis...
Cains Co., Ltd.
120+ people viewing
This is an inexpensive polyethylene thread.
Cains Co., Ltd.
120+ people viewing
It is highly water resistant and does not shrink easily even if it gets wet.
Cains Co., Ltd.
110+ people viewing
■Features Easy to roll without twisting ■Applications Horizontal and straight lines for blocks, bricks, tiles, etc.
Cains Co., Ltd.
130+ people viewing
Fluorescent colored thread that is easily visible.
Takumi Co., Ltd.
690+ people viewing
Last viewed: 5 hours ago
■Reel with easy-to-grip handle - A reel with a handle that makes it easy to take out the line. ・Uses nylon specifically designed for water threads...
10 models listed
Cains Co., Ltd.
130+ people viewing
Bright fluorescent color ■Features A lightweight eco-pack container with coreless winding that allows thread to be taken out smoothly without leav...
Cains Co., Ltd.
100+ people viewing
Polyester is less stretchable than nylon and does not absorb moisture, so it can be stretched tightly with less sag.
Takumi Co., Ltd.
410+ people viewing
Last viewed: 1 day ago
■Lightweight yarn with little sagging -Thick and light, with little sagging, making it ideal for stringing long distances. -Easy to see fluorescent...
4 models listed
Cains Co., Ltd.
180+ people viewing
Last viewed: 1 day ago
Bright fluorescent color ■Features Polyester thread with little elongation and sagging. ■Applications For tiles, foundation work, and other gener...
Cains Co., Ltd.
160+ people viewing
Last viewed: 12 hours ago
Water-resistant plastic frame.
Takumi Co., Ltd.
720+ people viewing
Last viewed: 15 hours ago
■Case with cutter included - Comes in a transparent case that makes it easy to see the remaining amount and prevents the thread from getting dirty....
10 models listed
Cains Co., Ltd.
170+ people viewing
Thread thickness: 0.8mm Smooth threading with rotating shaft to increase fluorescent dye density ■Features - Smooth thread tensioning work is poss...
Cains Co., Ltd.
160+ people viewing
Speeds up standard setting for LGS and steel frames. You can adjust the thread height in the range of 0mm, 7~50mm, and 100mm with one touch to suit...
