Marshalltown 16506 Line Blocks 3-3/4 in Poplar Pair

Product Description

The MARSHALLTOWN 16506 is a pair of line blocks shaped from poplar hardwood, designed to hold mason's line taut at corner leads during brick, block, and masonry wall construction. Each block measures 3-3/4 inches in length and is contoured to grip standard course edges without slipping. Poplar hardwood construction resists splitting under repeated tension loads, making these blocks a reliable site tool for masons who pull line across long runs. Shrink-wrapped packaging keeps the pair together during storage and transport.

These line blocks are suited for residential and commercial masonry applications where accurate, level coursing is required. They are most commonly used by bricklayers and masonry contractors setting corners and leads on concrete masonry unit or clay brick construction. The blocks seat at opposite corners of a wall section, with a line stretched between them to guide each course to a consistent height and alignment. Jobsite conditions from foundation work to above-grade structural masonry are typical use scenarios.

Key Features

• Shaped from poplar hardwood for durability and resistance to splitting under line tension
• 3-3/4 inch length fits standard masonry course corners and leads
• Contoured profile grips block or brick edges to hold line position
• Sold as a pair for immediate use at both ends of a line run
• Shrink-wrapped packaging keeps the set together between uses

Compatibility

Designed as a standard-style replacement or supplemental set for use with mason's line on brick, block, and concrete masonry unit construction projects.

Installation Notes

Line blocks are installed by masonry tradespeople without the need for tools or fasteners. Seat each block firmly at a corner lead, loop the mason's line through the block notch, and tension the line to the desired course height before laying. Inspect blocks periodically for cracks or wear that could cause line slippage. Replace any block that no longer holds tension securely at the corner.

Technical Specifications

• Length: 3-3/4 inches
• Material: Poplar hardwood
• Sold As: Pair
• Weight: 28.8 pounds
• Package Quantity: 180
• Unit of Measure: EA

Standard Information

• Brand: MARSHALLTOWN
• Manufacturer Part Number: 16506