---
product_id: 3515325
title: "STAEDTLER Professional Triangular Scale Ruler - 12in Metal Architectural Scale with High-Contrast Etched Markings, 6 Imperial Scales for Drafting & Blueprint Reading"
brand: "staedtler"
price: "$33.72"
currency: USD
in_stock: true
reviews_count: 13
category: "Staedtler"
url: https://www.desertcart.us/products/3515325-staedtler-professional-triangular-scale-ruler-12in-metal-architectural-scale-high
store_origin: US
region: United States of America
---

# 6 imperial scales for pro precision High-contrast etched markings for crystal-clear reads Aluminum build for durability & lightness STAEDTLER Professional Triangular Scale Ruler - 12in Metal Architectural Scale with High-Contrast Etched Markings, 6 Imperial Scales for Drafting & Blueprint Reading

**Brand:** staedtler
**Price:** $33.72
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your drafts with precision that professionals swear by!

## Quick Answers

- **What is this?** STAEDTLER Professional Triangular Scale Ruler - 12in Metal Architectural Scale with High-Contrast Etched Markings, 6 Imperial Scales for Drafting & Blueprint Reading by staedtler
- **How much does it cost?** $33.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3515325-staedtler-professional-triangular-scale-ruler-12in-metal-architectural-scale-high)

## Best For

- staedtler enthusiasts

## Why This Product

- Trusted staedtler brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Crafted from lightweight yet robust aluminum, this ruler resists warping and wear even in tough environments.
- • **Effortless Readability:** High-contrast black etched graduations ensure your measurements stay sharp and easy to read all day long.
- • **Trusted by Experts Worldwide:** From Staedtler, a global leader in precision tools that empower creativity and professional excellence.
- • **Designed for the Field & Office:** Weather-resistant and fade-proof, this ruler is your reliable partner from blueprint table to job site.
- • **Precision Meets Professionalism:** Six imperial scales on three sides deliver unmatched accuracy for architects and engineers.

## Overview

The STAEDTLER Professional Triangular Scale Ruler is a 12-inch aluminum drafting tool featuring six imperial scales with high-contrast etched markings. Designed for architects and engineers, it combines durability, lightweight construction, and crystal-clear readability to ensure precise measurements on blueprints and technical drawings. Its weather-resistant, fade-proof design makes it a dependable choice for both office and on-site use.

## Description

Take your architectural and engineering projects to the next level with this high-quality triangular scale ruler (987M1831BK). Built for architects and designers who demand accuracy, this lightweight aluminum tool features 6 imperial scales with color-coded grooves for quick reference. The high contrast etched markings make blueprint reading a breeze, while the durable metal construction ensures it'll be your trusted drafting companion for years to come. Whether you're at the office or on-site, this architect scale delivers the precision and reliability you need.

Review: Love it - The old style metal tri ruler, love it, build quality is top notch, its solid like you remember them being, numbers are easy to read... this is the one.
Review: All I use is the quarter inch scale - All I use is the quarter inch scale. Works great for my purposes.

## Features

- BUILT TO LAST - This 12 inch ruler is made from aluminum, giving you a lightweight yet durable tool that stands up to daily use and harsh conditions without warping or wearing down
- CRYSTAL CLEAR READINGS - The etched black graduations on this drafting ruler pop against the metal surface, making measurements easy to read even after long hours at the blueprint table
- PRO-LEVEL PRECISION - This scale ruler for blueprints features 3 sides with 6 imperial scales, delivering the accuracy you need for architectural drawings, engineering plans, and detailed drafts
- DESIGNED FOR PROS - An architect and engineering ruler in one, it's packed with features working professionals demand - from weather-resistant aluminum to fade-proof markings
- STAEDTLER - Leading manufacturer and supplier of writing, paint, drawing and modeling products that help people around the world realize and share their ideas.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004CO9OKW |
| Best Sellers Rank | #57,043 in Office Products ( See Top 100 in Office Products ) #200 in Drafting Tools & Drafting Kits |
| Brand | STAEDTLER |
| Color | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (180) |
| Date First Available | July 22, 2011 |
| Display Type | analog |
| Form Factor | Handheld |
| Global Trade Identification Number | 00031901943530 |
| Item Weight | 0.01 ounces |
| Item model number | 987M1831BK |
| Manufacturer | Staedtler Inc. |
| Manufacturer Part Number | 987M1831BK |
| Material | Aluminum, Metal |
| Material Type | Aluminum, Metal |
| Number of Items | 1 |
| Product Dimensions | 2 x 0.7 x 0.2 inches |
| Readout Accuracy | 0.1g or 0.01oz |
| Size | 1 - Pack |
| Special Feature | Lightweight |
| UPC | 031901943530 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** STAEDTLER
- **Color:** Blue
- **Display Type:** analog
- **Form Factor:** Handheld
- **Special Feature:** Lightweight

## Images

![STAEDTLER Professional Triangular Scale Ruler - 12in Metal Architectural Scale with High-Contrast Etched Markings, 6 Imperial Scales for Drafting & Blueprint Reading - Image 1](https://m.media-amazon.com/images/I/51WubBEYwvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love it
*by A***Y on May 15, 2025*

The old style metal tri ruler, love it, build quality is top notch, its solid like you remember them being, numbers are easy to read... this is the one.

### ⭐⭐⭐⭐⭐ All I use is the quarter inch scale
*by A***R on March 30, 2025*

All I use is the quarter inch scale. Works great for my purposes.

### ⭐⭐⭐⭐⭐ Ruler
*by E***Y on July 22, 2024*

Perfect, just what my son needed for school

## Frequently Bought Together

- Staedtler Professional Triangular Scale Ruler, Metal Architecture Scale, 12 Inch, 987M1831BK
- Staedtler 12-Inches Engineer Aluminum Triangular Scale (987M1834BK),Blue
- Staedtler Stainless Steel Math Set with Ruler, 2 Triangles, Protractor, 4 piece, 566 32BK

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-03*