Marshalltown M621 Brick Line – 285ft High-Visibility Twisted Nylon (Yellow)

Achieve clean, straight, and accurate lines with the Marshalltown M621 Brick Line, a must-have tool for professional bricklayers, contractors, and DIY builders. Perfect for bricklaying, blockwork, site layout, and landscaping, this durable 285-foot yellow nylon line delivers precise guidance for your masonry projects.

Constructed from heat-set twisted nylon, the M621 offers outstanding tensile strength, minimal stretch, and reliable performance on demanding job sites. It resists mortar, oil, and mildew, maintaining its integrity over repeated use and exposure to the elements.

The high-visibility yellow color ensures the line is easy to see in various lighting conditions—improving alignment accuracy for brick and blockwork. With its lightweight cardboard core, it’s easy to handle, store, and transport.

Features & Benefits:

• 285ft Length – Ideal for small to medium-scale construction and layout tasks
• Twisted Nylon Material – Heat-set for added strength and reduced stretch
• High-Visibility Yellow – Enhances line clarity in all lighting environments
• Weather & Element Resistant – Withstands exposure to mortar, oil, and mildew
• Lightweight Cardboard Core – Makes winding, storage, and portability simple
• Versatile Use – Perfect for brickwork, site planning, retaining walls, and more
• Trusted by Professionals & DIYers – Built for performance and durability

Ideal For:

• Aligning bricks and blocks with consistent precision

• Site layout and construction marking

• Landscaping, retaining walls, and garden structures

• Use in outdoor and rugged work environments

Why Choose the Marshalltown M621 Brick Line?

If you're looking for a reliable, stretch-resistant masonry line that performs in all job site conditions, the Marshalltown M621 is the perfect choice. Its durable construction, easy handling, and professional-grade quality make it a go-to for any masonry or layout project.