---
product_id: 358419264
title: "Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel"
brand: "mr. pen"
price: "S$19"
currency: SGD
in_stock: true
reviews_count: 13
category: "Mr. Pen"
url: https://www.desertcart.sg/products/358419264-mr-pen-carpenter-square-8-inch-x-12-inch-right
store_origin: SG
region: Singapore
---

# 8" x 12" precise dimensions Dual metric & imperial scales Rust-resistant stainless steel Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel

**Brand:** mr. pen
**Price:** S$19
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your craft with precision that professionals trust!

## Quick Answers

- **What is this?** Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel by mr. pen
- **How much does it cost?** S$19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/358419264-mr-pen-carpenter-square-8-inch-x-12-inch-right)

## 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 stainless steel, ensuring durability and rust resistance on every job site.
- • **Compact Yet Powerful:** 8" x 12" L-shape design fits comfortably in your toolkit without compromising on measurement range.
- • **Multi-Tasking Marvel:** Perfect for framing, roofing, stair work, and layout patterns — plus doubles as a straightedge for flatness checks.
- • **Optimized for Professionals:** Bright white-on-black markings provide superior readability, reducing errors and boosting efficiency.
- • **Precision Meets Versatility:** Dual-sided metric (mm) and imperial (1/16") graduations for flawless measurements every time.

## Overview

The Mr. Pen Carpenter Square is an 8" x 12" L-shaped metal ruler made from durable stainless steel, featuring dual metric and imperial scales with clear white-on-black markings. Designed for carpentry tasks like framing, roofing, and stair work, it also functions as a straightedge for surface flatness, combining precision, durability, and versatility in one essential tool.

## Description

Mr. Pen - The Shorter Leg Measures At 8 Inch Outside And 6.5 Inch Inside – Longer Leg Measures At 12 Inch Outside And 11 Inch Inside Includes Metric Units At One Side With mm Graduation And Us Units At The Other Side With 1/16-Inch Graduations Easy To Read Markings With Bright White On Black Design High-Quality Stainless-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

Review: Excellent quality. - Thick metal, clearly inscribed, accurate (I checked), and good quality.
Review: Great - Great

## Features

- The Shorter Leg Measures At 8 Inch Outside And 6.5 Inch Inside – Longer Leg Measures At 12 Inch Outside And 11 Inch Inside
- Includes Metric Units At One Side With mm Graduation And Us Units At The Other Side With 1/16-Inch Graduations
- Easy To Read Markings With Bright White On Black Design
- High-Quality Stainless-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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 13,171 in DIY & Tools ( See Top 100 in DIY & Tools ) 29 in Carpentry Squares |
| Colour | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,887) |
| Date First Available | 3 April 2020 |
| Item Package Quantity | 1 |
| Item Weight | 231 g |
| Item model number | FR01 |
| Manufacturer | Mr. Pen |
| Material | PE_(Polyethylene), Iron |
| Part number | FR01 |
| Product Dimensions | 30 x 20 x 0.1 cm; 231 g |
| Style | Graduation |

## Product Details

- **Brand:** Mr. Pen
- **Colour:** Black
- **Graduation range:** 1/16 Inches
- **Material:** PE_(Polyethylene), Iron
- **Style:** Graduation

## Images

![Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel - Image 1](https://m.media-amazon.com/images/I/71+CrskbwBL.jpg)
![Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel - Image 2](https://m.media-amazon.com/images/I/71fNDMfBgOL.jpg)
![Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel - Image 3](https://m.media-amazon.com/images/I/81sXJrAvrZL.jpg)
![Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel - Image 4](https://m.media-amazon.com/images/I/91A+aO1xMtL.jpg)
![Mr. Pen- Carpenter Square, 8 inch x 12 inch, Right Angle Ruler, Framing Tools, L Shape Ruler, Metal Square, Steel - Image 5](https://m.media-amazon.com/images/I/71Edryn7nSL.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

### ⭐⭐⭐⭐⭐ Excellent quality.
*by A***B on 13 February 2026*

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

### ⭐⭐⭐⭐⭐ Great
*by S***O on 29 October 2025*

Great

### ⭐⭐⭐⭐⭐ Good product
*by P***T on 24 August 2025*

All good with this item

## 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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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-27*