Johnson Level Tool 3900 Aluminum Metric Meterstick 36 in

Product Description

The JOHNSON LEVEL TOOL 3900 is a 36-inch extruded aluminum meterstick and straight edge ruler built for layout and measurement work on job sites and in the field. The rule body measures 1.125 inches wide and carries screened, thermal-bonded metric graduations in millimeters that resist wear from repeated handling and contact with rough surfaces. A clear protective anodized finish shields the aluminum from corrosion and surface damage. Bold graduation marks and large numbers make readings fast and accurate even in low-light conditions. Plumbers, electricians, HVAC technicians, and general construction trades rely on this type of tool for scribing, measuring, and verifying straight lines during rough-in and finish work.

The 3900 is suited for both residential and light commercial applications where a durable, metric-graduated measuring rule is needed. It functions as both a measurement reference and a straight edge guide, making it useful for layout tasks on drywall, ductwork, pipe runs, conduit bends, and similar flat or linear surfaces. The millimeter graduation scale makes it compatible with metric-based specifications and plan sets common on commercial projects.

Key Features

• 36-inch overall length doubles as a straight edge for layout and scribing
• Extruded aluminum construction at 1.125 inches wide for rigidity along the full span
• Screened, thermal-bonded millimeter graduations resist abrasion and fading
• Clear anodized finish protects against corrosion and surface wear
• Bold, high-contrast graduation marks and numbers for fast field readings

Compatibility

Designed as a general-purpose metric measuring rule and straight edge for trade and construction use. Suitable for any application requiring a rigid 36-inch metric reference with millimeter graduations.

Installation Notes

No installation is required for this measuring tool. Store flat or hang vertically to prevent warping over time. Avoid using as a cutting guide with utility knives, as blade contact can damage the anodized finish and degrade graduation visibility. Clean with a dry or slightly damp cloth to maintain legibility of the graduated scale.

Technical Specifications

• Length: 36 inches
• Width: 1.125 inches
• Material: Extruded aluminum with anodized finish
• Graduation Type: Screened, thermal-bonded millimeter scale
• Weight: 0.255 pounds
• Unit of Measure: Each

Standard Information

• Brand: JOHNSON LEVEL TOOL
• Manufacturer Part Number: 3900