---
product_id: 342430555
title: "Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel"
brand: "mr. pen"
price: "R$215"
currency: BRL
in_stock: true
reviews_count: 5
category: "Mr. Pen"
url: https://www.desertcart.com.br/products/342430555-mr-pen-carpenter-square-20cm-x-30cm-l-square-ruler
store_origin: BR
region: Brazil
---

# Dual imperial & metric scales Precise 20x30cm L-shape Carbon steel, rust-resistant Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel

**Brand:** mr. pen
**Price:** R$215
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your craft with precision and style — don’t just measure, master it!

## Quick Answers

- **What is this?** Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel by mr. pen
- **How much does it cost?** R$215 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/342430555-mr-pen-carpenter-square-20cm-x-30cm-l-square-ruler)

## Best For

- mr. pen enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from high-quality carbon steel, engineered to resist rust and withstand heavy-duty carpentry tasks.
- • **Optimized Dimensions:** Compact 20cm x 30cm L-shape design fits perfectly in your toolkit for framing, roofing, and stair work.
- • **Multi-Functional Tool:** More than a square—use it as a straightedge for surface flatness checks or precise layout patterns.
- • **High-Contrast Readability:** Bright white markings on sleek black finish ensure quick, error-free readings even in low light.
- • **Precision Meets Versatility:** Dual-sided imperial (1/16") and metric (mm) graduations for flawless measurements every time.

## Overview

The Mr. Pen Carpenter Square is a durable, rust-resistant carbon steel L-shaped ruler measuring 20cm by 30cm. Featuring dual imperial and metric scales with clear white-on-black markings, it delivers precise measurements for carpentry, framing, roofing, and more. Its sturdy build and smooth finish make it ideal for both heavy-duty construction and delicate craft projects.

## Description

Black Framing Ruler, The Shorter Leg Measures At 8 Inch Outside And 6.5 Inch Inside – Longer Leg Measures At 12 Inch Outside And 11 Inch InsideThis L Ruler Includes Imperial Units On One Side With 1/16-Inch Graduations And Metric Units On The Other Side With mm GraduationEasy To Read Markings With Bright White On Black DesignHigh-Quality L-Ruler, Carbon Steel Material – Sturdy And Durable Against RustingIdeal For Carpentry Applications In Framing, Roofing, Stair Work, In Making Layouts And Patterns - Can Also Be Used As Straightedge For Determining Flatness Of A Surface

Review: This carpenter square is for crafting projects and paper arts and I wanted something made of metal but with a nice finish so nothing could get messed up or torn during use. Many "tool-like" measuring tools are made for wood or metal and no real thought to the finish being smooth and safe for work with more delicate surfaces but this one is great. Smooth, yet hefty, accurate measurements and an excellent square will make this a go-tool tool in my papercrafting and stamping arsenal. Works well and doesn't shift around during use. Quite happy with all my Mr. Pen purchases.
Review: Thick metal, clearly inscribed, accurate (I checked), and good quality.

## Features

- Black Framing Ruler, The Shorter Leg Measures At 8 Inch Outside And 6.5 Inch Inside – Longer Leg Measures At 12 Inch Outside And 11 Inch Inside
- This L Ruler Includes Imperial Units On One Side With 1/16-Inch Graduations And Metric Units On The Other Side With mm Graduation
- Easy To Read Markings With Bright White On Black Design
- High-Quality L-Ruler, Carbon Steel Material – Sturdy And Durable Against Rusting
- Ideal For Carpentry Applications In Framing, Roofing, Stair Work, In Making Layouts And Patterns - Can Also Be Used As Straightedge For Determining Flatness Of A Surface

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086R74VLK |
| Best Sellers Rank | #56,200 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #73 in Carpentry Squares |
| Item model number | FR01 |
| Manufacturer | Mr. Pen |
| Product Dimensions | 30 x 20 x 0.1 cm; 231 g |

## Product Details

- **Brand:** Mr. Pen
- **Colour:** Black
- **Graduation range:** 1/16 Inches
- **Material:** Stainless Steel
- **Style:** Classic

## Images

![Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel - Image 1](https://m.media-amazon.com/images/I/71+CrskbwBL.jpg)
![Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel - Image 2](https://m.media-amazon.com/images/I/71fNDMfBgOL.jpg)
![Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel - Image 3](https://m.media-amazon.com/images/I/81sXJrAvrZL.jpg)
![Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel - Image 4](https://m.media-amazon.com/images/I/91A+aO1xMtL.jpg)
![Mr. Pen- Carpenter Square, 20Cm X 30Cm, L Square Ruler, Right Angle Framing Tools, Metal Steel - Image 5](https://m.media-amazon.com/images/I/71Edryn7nSL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: How much does this weigh in ounces?**
A: The seller states its weight is 8.15 ounces.

**Q: how wide is it?**
A: according to the ruler etched on the square the narrow part is 1" wide and the wider part is 1-1/2" wide.

**Q: how deep is it? The bottom bar is less deep than the top bar; how deep is the top bar? across the bar not end to end**
A: how deep is it? Not very deep
The bottom bar is less deep than the top bar? It is the same bottom and top
 how deep is the top bar? You can run your figure across the the engraved and feel that it is raised up

**Q: Are the markings along the ruler printed or engraved?**
A: They are printed/painted on, the people who are saying "engraved" are probably feeling the thickness of the paint. The paint job is quite poor on mine, I see the same defects on the seller's photos, just fewer of them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***. on 6 January 2026*

This carpenter square is for crafting projects and paper arts and I wanted something made of metal but with a nice finish so nothing could get messed up or torn during use. Many "tool-like" measuring tools are made for wood or metal and no real thought to the finish being smooth and safe for work with more delicate surfaces but this one is great. Smooth, yet hefty, accurate measurements and an excellent square will make this a go-tool tool in my papercrafting and stamping arsenal. Works well and doesn't shift around during use. Quite happy with all my Mr. Pen purchases.

### ⭐⭐⭐⭐⭐ Review
*by A***B on 13 February 2026*

Thick metal, clearly inscribed, accurate (I checked), and good quality.

### ⭐⭐⭐⭐⭐ Review
*by A***L on 5 December 2025*

I really like this ruler...it's heavy.

## Frequently Bought Together

- Mr. Pen- Carpenter Square, Framing Square, 8 inch x 12 inch , Carpenters Square , Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel Square
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- Mr. Pen - T Square, T Ruler, 12 inch Metal Ruler, T Square Ruler, Drafting Tools, Architect Ruler, Set Square, Drafting Ruler, Tsquare, Truler, Architectural Triangle, Tee Ruler, L Square, Scale Ruler

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**Shop now:** [https://www.desertcart.com.br/products/342430555-mr-pen-carpenter-square-20cm-x-30cm-l-square-ruler](https://www.desertcart.com.br/products/342430555-mr-pen-carpenter-square-20cm-x-30cm-l-square-ruler)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-04*