Best Masonry String Lines of 2025

Harry Stack
Last Updated: Jan 14, 2025

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Masonry string lines are essential tools for builders and DIY enthusiasts who want to lay bricks or blocks in straight lines. These lines are made of durable materials such as nylon, polyester, or braided cotton, and come in various lengths and thicknesses. They are typically used to create a straight line between two points, allowing the mason to ensure that the bricks or blocks are laid evenly and in the correct position. Masonry string lines are easy to use and can be set up quickly, making them a must-have tool for any construction project.

At a Glance: Our Top Picks

#TOP 1
Stringliner Braided Mason Line Replacement Roll Contractor Pack 500'
ftb score rating icon 9.9
#TOP 2
Orange Braided Nylon Mason Line String - 500 Ft
ftb score rating icon 9.8
#TOP 3
Romeda #18 500 Ft Mason Line
ftb score rating icon 9.6

Top 10 Masonry String Lines

#TOP 1

Stringliner Braided Mason Line Replacement Roll Contractor Pack 500'

SL35462CPK
Pink
500'
Stringliner Braided Mason Line Replacement Roll Contractor Pack 500' - Pink (Pack of 6) - SL35462CPK
ftb score rating icon 9.9
FTB Score

This contractor pack of 6 braided mason string line replacement rolls, with 500 feet each, is perfect for masonry, construction, and landscaping layout, with a bright fluorescent pink color that is easy to see. With a breaking strength of 165 pounds, this #18 nylon line is durable and resistant to wear and tear.

What We Like
Affordable multi-pack option
Good stretchability
Highly visible colors
Durable quality
What We Don't Like
Not made in the USA
#TOP 2

Orange Braided Nylon Mason Line String - 500 Ft

MLR-OR-500-6-BRNYL18
Fluorescent Orange
500 Ft Roll
Orange Mason Line String Line - #18 Braided Nylon String - 500 Ft Length - Nylon Twine for Gardening Or Masonry Tools - Perfect Construction String for A String Level, Twine String for Gardening
ftb score rating icon 9.8
FTB Score

This braided nylon mason line is perfect for heavy duty outdoor projects, gardening, and landscaping. Its high quality material makes it stronger than polypropylene twine, while the braided design prevents unraveling when cut or tied in knots. The bright orange color makes it easy to see and use as a plumb line, property line marker, or construction string. It's also ideal for use in the garden as tomato twine string or for wick watering african violets.

What We Like
High quality material
Bright and easy to see
Strong and durable
Good value for the price
Perfect for gardening use
What We Don't Like
Potential cancer risk noted
Could be perceived as expensive
#TOP 3

Romeda #18 500 Ft Mason Line

14CSNLX0001
Orange
Romeda Mason line #18, 500 Ft Length Orange String line, Mason line String, Construction String, Orange String, Twine String for Gardening, Braided Mason Line, Masonry String Lines, String Lines
ftb score rating icon 9.6
FTB Score

The Romeda Mason Line is a versatile tool for all your marking and gardening needs. Made from high-quality nylon, this durable #18 string is perfect for a wide range of applications, including DIY projects and masonry work. Its robust braided design ensures it can withstand harsh conditions, whether in direct sunlight or submerged in water. You'll appreciate its strong resistance to moisture, UV rays, and chemicals, making it reliable for long-term use. Plus, with 500 feet of bright orange line, you'll have plenty to work with while easily spotting it in any setting.

What We Like
Great visibility with bright color
Durable and strong material
Good value for the price
Operable for portable antenna use
What We Don't Like
Messy unrolling experience
Tendency to fray under tension
#TOP 4

STRINGLINER 25406 Reloadable Line Reel

25406
Orange
No Size
STRINGLINER COMPANY 25406 Twisted 540-Feet Reloadable Line Reel, Fluorescent Orange, No Size, 540 Foot
ftb score rating icon 9.4
FTB Score

STRINGLINER 25406 is a durable and convenient reloadable line reel made of polyethylene. The line secures in a convenient notch and the reel is suitable for all construction purposes. This masonry string line reel is easy to use and ideal for a wide range of construction applications.

What We Like
Easy to use
High visibility color
Durable string
Good value
Effective for marking land
What We Don't Like
Quality is fair
Shipping delays
#TOP 5

T.W Evans Cordage Neon Orange Mason Line

11-191
Orange
1100-Feet
T.W Evans Cordage 11-191 Number-18 Twisted Nylon Mason Line, 1100-Feet, Neon Orange
ftb score rating icon 9.4
FTB Score

The T.W Evans Cordage Neon Orange Mason Line is a 100% nylon fiber string line with a break strength of 170 lbs. It is strong, durable, and highly visible, making it ideal for use in various applications such as chalk line, fishing line, and net repairs. The product falls under the category of Masonry String Lines.

What We Like
Durable and strong
Highly visible in use
Great value for price
Long length at low cost
Excellent for construction tasks
What We Don't Like
A bit overpriced
Line is somewhat thin
#TOP 6

MARSHALLTOWN Bonded Mason's Line ML613

Marshalltown - ML613
Yellow & Black
500 Foot
MARSHALLTOWN Masonry Line, Bonded Nylon, Yellow & Black, 500 Foot, #18 Line Size, Masons and Archaeology. Made in the USA, ML613
ftb score rating icon 9.2
FTB Score

The MARSHALLTOWN Mason's Line is a robust tool designed for your masonry and archaeology tasks. Its durable bonded construction stands up to damp conditions, ensuring reliability over time. You’ll appreciate its braided design, which enhances strength and stability, making it less prone to wear from moisture or dryness. Additionally, this line comes in various styles, colors, and sizes, allowing you to choose the perfect fit for your project needs. With the added benefit of being made in the USA from global materials, you can trust its exceptional craftsmanship for your work.

What We Like
Durable plastic center
Perfect for fence alignment
Bright and easy to see
Strong and tight pull
Good value for money
What We Don't Like
Some stretch when pulled
#TOP 7

Woanger 8 Rolls 500ft Nylon String

Fluorescent Orange
Fluorescent Orange
Woanger 8 Rolls Mason Line 500 Feet Length Braided Mason Nylon String Masonry Nylon Twine for Construction Gardening Crafting DIY Project Workshop (Fluorescent Orange)
ftb score rating icon 9.2
FTB Score

The Woanger Mason Twine is a durable and flexible nylon string designed for various tasks. Made from high-quality nylon yarn, it withstands tough weather conditions and won’t break easily, ensuring long-lasting use. Its bright fluorescent orange color enhances visibility, making it perfect for construction sites or any area where being seen is crucial. With a high tensile strength of up to 168 pounds, this twine can handle heavy loads without spreading, giving you confidence in its reliability. You’ll receive eight rolls, totaling 4,000 feet, which is more than enough for all your projects, whether in gardening, crafting, or DIY tasks.

What We Like
Durable nylon construction
High visibility color
Strong tensile strength
Generous quantity provided
What We Don't Like
Not ideal for non-masonry tasks
#TOP 8

Kraft Tool BC352 Premium Professional Masons Line

BC352
Multi
Kraft Tool BC352 Premium Professional Bonded Braided Masons Line with 500-Feet Tube, White/Black, One Size
ftb score rating icon 9.0
FTB Score

This masons line is made in the United States and comes in the model number BC352. The package dimensions are 9.0" L x 6.0" W x 0.375" H, and it weighs 1.0 lb. This braided line is perfect for masonry projects.

What We Like
Durable and sturdy
Easy to untie
Great value
Strong knots
Highly visible
What We Don't Like
Requires spool for storage
#TOP 9

US Tape Stringliner PRO Fl. Pink Braid CTR PCK

45162
Multicolor
No Size
US Tape Company US Tape 45162 Stringliner® PRO Fl. Pink Braid CTR PCK - 750' Masons Twine w/Reel
ftb score rating icon 8.8
FTB Score

The US Tape Stringliner PRO is a masonry string line that comes in a variety of colors and types of twine. Made of durable polyethylene, this product is built to last through tough job sites. One of the standout features is the patented handle that allows for quick and easy changes of twine rolls. The 125' braided and 135' twisted #18 Nylon twine options provide plenty of length for most masonry projects. This product is perfect for masons who need a reliable and easy-to-use string line that will last for multiple jobs.

What We Like
Good quality string
Prompt customer service
Fair resolution of issues
Affordable pricing
What We Don't Like
Misleading product image
Only one reel included
#TOP 10

Mason Line String - IMAGE #18 Nylon

IMAGE
Mason Line
Yellow
Mason Line String Line - #18 Braided Nylon String - 500 Ft Length - Nylon with Reloadable Line Reel Twine for Gardening Or Masonry Tools - Perfect Construction String (Yellow)
ftb score rating icon 8.8
FTB Score

The IMAGE Mason Line String is designed for durability and efficiency in various tasks. Its 8-strand braided nylon construction enhances strength, making it resistant to wear and tear, which is perfect for outdoor use. You’ll appreciate its resistance to moisture, oil, and weather, ensuring it lasts through tough conditions. The included reloadable line reel simplifies management, keeping your workspace organized and tangle-free. Plus, its bright color ensures high visibility, making it easy to spot during any project, whether it's gardening or masonry work.

What We Like
Strong and durable material
Highly visible color
Easy to manage and store
Versatile for various projects
Large quantity at a good price
What We Don't Like
Slightly stiff in tight spaces
Thin but strong
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the use of masonry string?

Masonry string is used in construction to establish straight lines and uniform levels. It serves as an accurate reference guide for building walls. By connecting fixed points and using nails or wooden pegs, the string helps measure distances and ensures precise alignment during construction.

2. Why do builders use string lines?

Builders use string lines, also known as line levels, to achieve level ground over longer distances. These levels can be attached to tightly pulled strings and used to find level between two stakes in the ground. String lines help builders ensure a consistent and level surface for various construction projects.

3. What is the purpose of the yellow masonry string?

The yellow masonry string, also known as mason twine, is used to quickly and accurately level masonry work. It has good abrasion resistance, is rot-proof, and resists oil, gasoline, and most chemicals. Masons, contractors, carpenters, and homeowners use this twine to ensure precise leveling during construction.

4. What is the purpose of a mason's string line and level?

A mason's string line and level serve the purpose of creating straight lines and leveled surfaces. They are particularly useful when laying patios, posts, footings, and other construction projects. This twine eliminates the need to constantly pick up a level, and it does not sag like other types of twine, ensuring accurate and consistent leveling.

Editor's Notes

During our masonry string line research, we found 24 masonry string line products and shortlisted 10 quality products. We collected and analyzed 26,006 customer reviews through our big data system to write the masonry string lines list. We found that most customers choose masonry string lines with an average price of $12.03.

The masonry string lines are available for purchase. We have researched hundreds of brands and picked the top brands of masonry string lines, including Stringliner, ACE Supply, Romeda, T.W . Evans Cordage Co., Marshalltown. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by

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.

Masonry String Lines Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Stringliner ACE Supply Romeda Stringliner T.W . Evans Cordage Co. Marshalltown Woanger Kraft Tool Stringliner IMAGE
Material Nylon Nylon Nylon Polyethylene Nylon Nylon Nylon - Nylon Nylon
Color Pink Fluorescent Orange Orange Orange Orange Yellow & Black Fluorescent Orange - Multicolor Yellow
Style Braided Fluorescent Orange Braided - Twisted Yellow & Black Nylon Braided - Braided Line,Fine Modern
Line Weight 165lb 170 Lb Max Tensile Strength 150 - - 150 or 200 168 - Light 1.4kg
Item Weight - - 7.4 ounces 9.6 Ounces 14.4 ounces - 3.78 pounds 2.4 ounces 15.8 ounces 3.1 pounds
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.4
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 8.8
ftb score rating icon 8.8
Where to Buy