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The RICHELIEU AMERICA LTD. 644031 is a twisted nylon mason line sold in a convenient tube format, designed for layout and alignment work on construction and masonry jobsites. The line is bright pink for high visibility against concrete, block, brick, and framing. It carries an 8-pound safety work load, making it suitable for stringing level reference lines, batter boards, and layout grids. At 18 gauge and 260 feet per tube, this is a working-quantity spool sized for real jobsite use. Nylon construction resists moisture and abrasion better than natural-fiber twine, holding its set in wet or dusty conditions.
This mason line is appropriate for residential and light commercial construction tasks where accurate horizontal and vertical reference lines are required. Typical applications include block laying, concrete formwork layout, foundation staking, tile work alignment, and general site layout. The 260-foot length suits mid-size to larger layout runs without frequent resupply. The tube packaging keeps the line from tangling and dispenses cleanly during use.
Designed as a general-purpose mason line suitable for use with standard line blocks, line pins, and corner brackets used in masonry and construction layout applications.
Mason line is typically deployed by masonry workers, framers, and general contractors for layout and reference-line tasks. Secure the line to line pins, stakes, or batter boards at consistent tension to maintain accuracy across long runs. Inspect the line for cuts or abrasion before each use and replace if the strand shows wear that could compromise work-load integrity. No specialized tools or trade licensing are required for standard layout use.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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