---
product_id: 13540180
title: "Level & Tool RAS-1B Johnny Square Professional Aluminum Rafter, 7\", Silver, 1 Square"
brand: "johnson"
price: "$27.87"
currency: USD
in_stock: true
reviews_count: 13
category: "Johnson"
url: https://www.desertcart.us/products/13540180-level-and-tool-ras-1b-johnny-square-professional-aluminum-rafter
store_origin: US
region: United States of America
---

# 7-inch precision aluminum body Integrated protractor & scribing notches CNC machined edges for ±0.1 accuracy Level & Tool RAS-1B Johnny Square Professional Aluminum Rafter, 7", Silver, 1 Square

**Brand:** johnson
**Price:** $27.87
**Availability:** ✅ In Stock

## Summary

> 📐 Cut like a pro, measure like a boss — never miss the mark again!

## Quick Answers

- **What is this?** Level & Tool RAS-1B Johnny Square Professional Aluminum Rafter, 7", Silver, 1 Square by johnson
- **How much does it cost?** $27.87 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/13540180-level-and-tool-ras-1b-johnny-square-professional-aluminum-rafter)

## Best For

- johnson enthusiasts

## Why This Product

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

## Key Features

- • **Built for Builders:** Thick edge doubles as a saw guide, engineered for contractors who demand speed and precision on site.
- • **Effortless Layouts:** Etched protractor scale and continuous scribing notches simplify complex cuts with professional-grade ease.
- • **Multi-Functional Mastery:** Use as a saw guide, ruler, or angle measurer—perfect for rafters, stairs, solar panels, and trim work.
- • **Low-Glare, High Visibility:** Powder-coated finish reduces glare and features permanent graduations for quick, confident measurements.
- • **Precision Meets Durability:** CNC-machined aluminum edges ensure razor-sharp accuracy and long-lasting performance on every cut.

## Overview

The Johnson Level & Tool RAS-1B Johnny Square is a 7-inch aluminum rafter angle square designed for professional carpenters and contractors. Featuring CNC-machined edges for ±0.1 accuracy, integrated protractor scales, and continuous scribing notches, it streamlines layout tasks for rafters, stairs, and trim. Its durable powder-coated finish minimizes glare, while the thick edge doubles as a saw guide. Backed by a limited lifetime warranty, this tool is a reliable staple for precision woodworking and construction.

## Description

Designed for general carpentry use, the Johnson 7-inch aluminum rafter angle Square features a solid aluminum cast body with exclusive CNC machined edges. Other highlighted features include permanent molded graduations, and a Low-glare, protective powder coat finish. It can also be used as a ruler or can be used to measure angles. The diagonal edge has markings for laying out rafters, roof trim, and Stair angles. The square comes backed with a 1-year limited warranty and includes an instruction manual.

Review: A must for any framer - I've gone through several speed squares over the years trying many different brands and styles. These Johnsons seem to be the best quality for the lowest price and one of the only styles that actually has scribing notches over 5.5".
Review: Love the notches for marking rip cuts - Love the notches for marking rip cuts, that was the main reason for my purchase. Don't know why all brands don't have this useful feature. Tool is well made, arrived with a couple of small areas where the paint/coating was chipped, but it's gonna get scratched up in use anyway so not a big deal.

## Features

- ACCURACY AND DURABILITY: This aluminum rafter angle square boasts a solid aluminum body with CNC machined edges for greater accuracy and durability.
- BUILDERS AND CONTRACTORS: The thick edge works as a saw guide. Use it directly with the saw for cross or angled cuts via the etched protractor scale, or indirectly with scribing notches to mark rip cut lines.
- SIMPLIFY STAIR LAYOUT: The integrated distance and angle scales let you quickly and accurately mark your cut lines on your stringers and has scales for cutting hip, valley and jack rafters.
- ONE NUMBER LAYOUT: For roofs, solar panel supports, stairs, cabinets, trim work, and many other layout projects.
- ADDITIONAL FEATURES: Permanent graduations with easy-to-read numbers, continuous scribing notches for 3-1/2" and 5-1/2" boards, 2x4 dimension markers, low-glare powder coated finish, scribe notches 1"–5-1/2" in 1/4" increments.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00002N5O6 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #162,246 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #213 in Carpentry Squares |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,115) |
| Date First Available | February 17, 2007 |
| Is Discontinued By Manufacturer | Yes |
| Item Package Quantity | 1 |
| Item Weight | 7.8 ounces |
| Item model number | RAS-1B |
| Manufacturer | Johnson Level & Tool |
| Material | Aluminum |
| Measurement Accuracy | +/- .1 |
| Measurement System | Metric |
| National Stock Number | 5210-01-336-5737 |
| Part Number | RAS-1B |
| Power Source | Hand Powered |
| Product Dimensions | 0.81 x 10.25 x 7.5 inches |
| Size | 7" |
| Style | 7'' Aluminum Rafter Angle Square |
| Thickness | .1 Inches |
| Warranty Description | Limited Lifetime Warranty: Johnson level warrants this product against defects in material and workmanship of mechanical parts for life and electronics for one year. The company will replace or repair the product if it fails under normal use. This warranty is limited to the repair or replacement of the product only. |

## Product Details

- **Brand:** Johnson
- **Color:** Silver
- **Graduation Range:** 1/8 Inches
- **Material:** Aluminum
- **Style:** 7'' Aluminum Rafter Angle Square

## Images

![Level & Tool RAS-1B Johnny Square Professional Aluminum Rafter, 7", Silver, 1 Square - Image 1](https://m.media-amazon.com/images/I/71OgS2SMZxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A must for any framer
*by A***N on January 3, 2024*

I've gone through several speed squares over the years trying many different brands and styles. These Johnsons seem to be the best quality for the lowest price and one of the only styles that actually has scribing notches over 5.5".

### ⭐⭐⭐⭐⭐ Love the notches for marking rip cuts
*by M***E on September 24, 2018*

Love the notches for marking rip cuts, that was the main reason for my purchase. Don't know why all brands don't have this useful feature. Tool is well made, arrived with a couple of small areas where the paint/coating was chipped, but it's gonna get scratched up in use anyway so not a big deal.

### ⭐⭐⭐⭐⭐ Hand tool
*by R***L on April 3, 2023*

Well made and with strong material. Good accuracy.

## Frequently Bought Together

- Johnson Level & Tool RAS-1 7-Inch Aluminum Rafter Angle Square
- Spec Ops Tools 10" Nail Puller Cats Paw Pry Bar, High-Carbon Steel

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-19*