---
product_id: 342430555
title: "Carpenter Square, 20cm x 30cm, L Square Ruler, Right Angle Ruler, Framing Tools, Metal Square, Steel"
brand: "mr. pen"
price: "B/.72"
currency: PAB
in_stock: true
reviews_count: 5
category: "Mr. Pen"
url: https://www.desertcart.com.pa/products/342430555-carpenter-square-20cm-x-30cm-l-square-ruler-right-angle
store_origin: PA
region: Panama
---

# Dual imperial & metric scales Lightweight yet sturdy 231g Carbon steel, rust-resistant Carpenter Square, 20cm x 30cm, L Square Ruler, Right Angle Ruler, Framing Tools, Metal Square, Steel

**Brand:** mr. pen
**Price:** B/.72
**Availability:** ✅ In Stock

## Summary

> 📐 Nail every angle with precision and style!

## Quick Answers

- **What is this?** Carpenter Square, 20cm x 30cm, L Square Ruler, Right Angle Ruler, Framing Tools, Metal Square, Steel by mr. pen
- **How much does it cost?** B/.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/342430555-carpenter-square-20cm-x-30cm-l-square-ruler-right-angle)

## 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

- • **High-Contrast Design:** Bright white markings on sleek black finish ensure easy readability in any lighting condition—no more squinting.
- • **Optimized Dimensions:** Compact 20x30cm size with perfectly balanced leg lengths (8" & 12") for framing, roofing, and stair work.
- • **Multi-Functional Tool:** Beyond measuring, doubles as a straightedge to check surface flatness, making it an indispensable addition to your toolkit.
- • **Engineered for Durability:** Crafted from high-quality carbon steel to resist rust and withstand the rigors of any carpentry or crafting project.
- • **Precision Meets Versatility:** Imperial (1/16") and metric (mm) graduations on opposite sides for flawless measurements every time.

## Overview

The Mr. Pen Carpenter Square is a premium 20x30cm L-shaped ruler made from rust-resistant carbon steel. Featuring dual imperial and metric scales with clear white-on-black markings, it offers precise measurements for carpentry, framing, roofing, and crafting. Lightweight yet sturdy, this tool also functions as a straightedge, making it a versatile essential for professionals and hobbyists alike.

## 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: All good with this item

## 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 | #22,573 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 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

![Carpenter Square, 20cm x 30cm, L Square Ruler, Right Angle Ruler, Framing Tools, Metal Square, Steel - Image 1](https://m.media-amazon.com/images/I/71+CrskbwBL.jpg)

## 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 P***T on 24 August 2025*

All good with this item

### ⭐⭐⭐⭐⭐ 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.pa/products/342430555-carpenter-square-20cm-x-30cm-l-square-ruler-right-angle](https://www.desertcart.com.pa/products/342430555-carpenter-square-20cm-x-30cm-l-square-ruler-right-angle)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-05*