Can I use this I’m cm?

No. This scale is in fractions of an inch.

Yes. The scales for this ruler are: 1-1/2, 1, 3/4, 3/8, 3/16, 3/32, 1/2, 1/4, 1/8, 3, 16

Since most drawings I have ever used are 1/4” scale this scale does not have 1/4” which all of my scales I no longer have had 1/4”. Why?

This scale has 1/4” = 1’-0”, along with most other architectural scales (1/8”, 1/2”, 3/4”, etc).

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Architectural Scale Ruler, 12" Aluminum Architect Scale, Triangular Scale, Scale Ruler for Blueprint, Triangle Ruler, Drafting Ruler, Architect Ruler, Metal Scale Ruler, Architecture Ruler

Product ID: 256550067

Details

Brand
Mr. Pen
Colour
A. White
Graduation range
1/16 Inches
Material
Aluminum
Style
Compact

🎨Color-coded scales for speed

📏12-inch precision length

🔺Triangular aluminum build

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$50.03

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In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📐 Draft like a pro, measure like a boss!

BUILT FOR THE BOLD - High-impact aluminum construction delivers durability that stands up to daily use.
PRECISION THAT LASTS - Laser-etched imperial scales won’t fade or scratch, ensuring lifelong accuracy.
LIGHTWEIGHT PORTABLE - Sleek 12-inch ruler weighing just 100g fits perfectly in your toolkit or desk drawer.
SPEEDY SCALE SELECTION - Color-coded triangular design lets you switch scales instantly—no more fumbling.
VERSATILE DRAFTING POWER - Supports a wide range of imperial scales from 1/32 to 1-1/2 for all your blueprint needs.

The Mr. Pen 12-inch Triangular Architect Scale Ruler is a durable, high-impact aluminum drafting tool featuring laser-cut, fade-resistant imperial scales and a color-coded design for quick scale selection. Ideal for architects, engineers, and designers, it supports multiple scales for precise blueprint and floor plan measurements.

Reviews

J**S

Perfectly fine

16.12.2025

V**R

It is not of aluminum... It is made of cheap plastic...

8.09.2023

V**A

Really great tool to have. A little more affordable than in the office supply store.

19.01.2026

B**S

Awesome scale rule, easy to read and love that it is aluminum.

13.10.2025

C**K

Prompt shipping. Very nice scale.

31.12.2025

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$50.03

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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ASIN	B07DNHCMS7
Best Sellers Rank	#48,399 in Office Products ( See Top 100 in Office Products ) #257 in Rulers
Item model number	SA01
Manufacturer	Mr. Pen
Product Dimensions	30 x 30 x 0.1 cm; 100 g

Architectural Scale Ruler, 12" Aluminum Architect Scale, Triangular Scale, Scale Ruler for Blueprint, Triangle Ruler, Drafting Ruler, Architect Ruler, Metal Scale Ruler, Architecture Ruler

Details

Details

Description

Specifications

Reviews

Common Questions