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Westcott W-25 1 x 12
Westcott W-25 1 x 12
Westcott W-25 1 x 12
Westcott W-25 1 x 12
Westcott

Westcott W-25 1 x 12" Graph Ruler Transparent

★★★★★4.3 (97 reviews)

Transparent 12-inch graph ruler with red 1/8-inch markings and zero-centering scale for precise drafting work.

$7.48*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Westcott W-25 is a 12-inch transparent graph ruler designed for drafting, drawing, and precision layout work. Its clear plastic body allows you to see your work underneath the ruler as you measure and draw lines, reducing guesswork when aligning to existing elements on a page. The markings are printed in red and calibrated in eighths of an inch, providing a clear visual contrast that is easy to read on white paper, graph paper, and other common surfaces.

A standout feature of this ruler is its zero-centering scale, which places the zero mark at the center rather than at one end. This is particularly handy for tasks like centering text or graphic elements, measuring symmetrical distances, or quickly finding the midpoint of a line. At just one inch wide and made from lightweight plastic, the W-25 is easy to store and transport, making it a practical everyday tool for students, architects, and designers who need reliable fractional-inch measurements at the drafting table.

Key Features

Lightweight and flexible plastic ruler

Clear with red markings to allow easy viewing to the page

Handy grid patterns available in inches measurements

Calibrated in 16ths to the inch

Zero centering scale to measure equally left and right from a centered starting point

Perfect for your drafting and drawing needs

Specifications

Brand
Westcott
Model
W-25
Length
12 inches
Width
1 inch
Material
Plastic (Transparent)
Marking Color
Red
Graduations
1/8 inch increments
Features
Zero centering scale

Pros & Cons

👍 Pros

  • Transparent body lets you see underlying work while measuring and drawing lines
  • Red markings stand out clearly against white paper and other light surfaces
  • Zero-centering scale simplifies finding and measuring from a midpoint
  • Lightweight and slim 1-inch width fits easily into pencil cases and drafting kits

👎 Cons

  • Plastic material can scratch over time, potentially obscuring markings
  • Only marked in imperial eighths — no metric graduations included
  • 12-inch length may be too short for larger format drafting or layout work
  • Flexible plastic is less precise for technical inking compared to a steel straightedge

Frequently Asked Questions

The Westcott W-25 is calibrated in eighths of an inch (1/8") with clear red graph-style markings along its 12-inch length.
The zero-centering scale places zero at the midpoint of the ruler, allowing you to measure equal distances in both directions from a center point — useful for centering layouts and symmetrical drawings.
Yes, the ruler is made from transparent plastic, so you can view your work underneath while aligning measurements.
The plastic construction gives it slight flexibility, making it practical for everyday drafting use while still holding a straight edge for line work.

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