3.75-in. Wood Line Blocks

Experience precision in masonry with the Marshalltown 3-3/4 in Poplar Mason's Line Blocks. These compact guides are milled from poplar wood, engineered to keep mason's line tight and straight as you lay bricks or build block courses. Available to professional crews and DIY enthusiasts in Lawrence, New York, this sturdy pair adds dependable line control to your everyday masonry toolkit.

Benefits: With a firm grip and balanced weight, they maintain consistent tension along long runs, reducing errors and rework. The result is crisper joints, straighter walls, and faster progress on every project.

• Poplar hardwood construction delivers durable, lightweight line blocks engineered for repeated use with mason's line.
• Precise 3-3/4 inch length provides a comfortable grip and reliable line tension across brick and block work.
• Made in the USA, supporting domestic craftsmanship and consistent quality for masonry tools.
• Packaged in pairs and shrink-wrapped for easy handling, storage, and quick deployment on site.
• Versatile for brick walls, block courses, garden borders, and any project requiring straight lines and accuracy.

Why these line blocks stand out for your masonry projects: Built to endure daily use on busy jobsites, they provide consistent line tension and dependable straightness. Lightweight and easy to handle, they speed up setup and reduce guesswork. Suitable for brick, block, and garden-wall work, these blocks help you deliver professional results with confidence.