---
product_id: 13087290
title: "Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch"
brand: "swanson tool co., inc"
price: "R765"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Swanson Tool Co., Inc"
url: https://www.desertcart.co.za/products/13087290-swanson-t0108-big-12-speed-square-layout-tool-with-blue
store_origin: ZA
region: South Africa
---

# 12-inch precision scale 60-page expert instruction manual 7-in-1 multi-tool functionality Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch

**Brand:** swanson tool co., inc
**Price:** R765
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your craft with the ultimate 7-in-1 speed square—because precision is the new power move.

## Quick Answers

- **What is this?** Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch by swanson tool co., inc
- **How much does it cost?** R765 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/13087290-swanson-t0108-big-12-speed-square-layout-tool-with-blue)

## Best For

- swanson tool co., inc enthusiasts

## Why This Product

- Trusted swanson tool co., inc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Meets Durability:** Crafted from heavy-gauge aerospace aluminum with a matte finish to eliminate glare and ensure long-lasting accuracy.
- • **Effortless Marking & Scribing:** 1/4 in. and 1/2 in. spaced notches make line scribing fast and flawless—no more guesswork on the job site.
- • **All-in-One Carpentry Essential:** Combines framing square, try square, miter square, protractor, saw guide, stair gauge, and corner angle finder in a single sleek tool.
- • **Trusted by Pros, Loved by DIYers:** Top-ranked carpentry square with 4.8-star reviews and a 1-year limited warranty—join the community that builds with precision.
- • **Master Your Projects with Confidence:** Includes the exclusive 60-page Swanson Blue Book for expert roof and stairway layout techniques using the One-Number Method.

## Overview

The Swanson T0108 Big 12 Speed Square is a professional-grade, 12-inch aluminum layout tool combining seven essential carpentry functions into one durable, glare-resistant device. It features precise plain gradations, scribing notches, and comes with a comprehensive 60-page instruction manual, making it the go-to tool for framing, stairway building, and mitering. Trusted by professionals and DIY enthusiasts alike, it offers unmatched accuracy and reliability backed by a 1-year warranty.

## Description

Product Description The Big 12 Speed Square Is A 12 In. Version Of The Swanson Speed Square. This Innovative Tool Combines 7 Tools Into 1: 1. Framing Square, 2. Try Square, 3. Miter Square, 4. Protractor, 5. Saw Guide, 6. Stair Gauge, & 7. Out-Of-Square Corner Angle Finder. The Big 12 Speed Square Is Die-Cast For Durability And Accuracy. Made Of Heavy-Gauge Aerospace Aluminum Alloy, It Is Built To Last. This Model Includes The Swanson Blue Book For Roof And Stairway Layout And Features Markings For Using The Swanson One-Number Method Of Rafter Layout. The Swanson Speed Square Is Our Most Popular Product And Remains The Most Trusted Square Of Its Kind. Look For The Diamond Cutout For Genuine Swanson Products. Note: This Item Does Not Include The Layout Bar Or Corresponding Hardware Used With The S0107 Big 12 Speed Square. desertcart.com The Swanson Big 12 Speed Square is made from heavy-gauge aluminum alloy with plain gradations and a matte finish to prevent glare. Individually packaged with a 60-page Swanson Blue Book of Instructions, this versatile 12 Speed Square is a framing square, try square, miter square, protractor, and saw guide, in one easy-to-use tool. This product also comes with a 1-year limited manufacturer's warranty. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer Big 12 Speed Square with Blue Book Instructions. Framing Square, Try Square, Miter Square, Protractor, Saw Guide See more

Review: Makes My Measurements Look Professional - Solid, accurate, and does not bend or feel flimsy. This speed square made my DIY projects look way more legit than my skill level probably deserves. Easy to read markings and comfortable to use — no guessing, no eyeballing, no regret.
Review: Full function speed square - Exactly like it’s big brother but small enough to fit in an apron. I checked it for square and 45 degrees and it right on the money. Weighs practically nothing because of its aluminum construction and clear markings. Excellent value and perfectly square. I can stop looking for squares now since I have four different sizes up to 18”.

## Features

- Heavy gauge aluminum with matte finish to prevent glare
- 1/4 in. and 1/2 in. spaced notches to facilitate scribing lines
- Plain gradations
- Includes 60-page Swanson blue book of instructions
- Great for deck framing and stairway building!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000IOCJK2 |
| Batteries required | No |
| Best Sellers Rank | #1,965 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Carpentry Squares |
| Customer Reviews | 4.8 4.8 out of 5 stars (23,112) |
| Department | Unisex-Adult |
| Import | Made in the USA |
| Included Components | Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book |
| Is Discontinued By Manufacturer | No |
| Item Weight | 14.1 ounces |
| Item model number | T0108 |
| Manufacturer | Swanson Tool |
| Product Dimensions | 0.9 x 12.3 x 12.3 inches |
| Warranty Description | Swanson Tool Co., Inc. warrants its products to be free from defects in material and workmanship for 1 year from the date of the original purchase. Swanson's only liability under this limited warranty shall be at their option to repair or replace any product determined by Swanson to be defective. No damages or other remedies available. |

## Product Details

- **Brand:** Swanson Tool Co., Inc
- **Color:** Grey
- **Graduation Range:** 1/4 Inches
- **Material:** Plastic
- **Style:** Big 12 (plain)

## Images

![Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch - Image 1](https://m.media-amazon.com/images/I/811zYXy1CBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Makes My Measurements Look Professional
*by M***A on December 20, 2025*

Solid, accurate, and does not bend or feel flimsy. This speed square made my DIY projects look way more legit than my skill level probably deserves. Easy to read markings and comfortable to use — no guessing, no eyeballing, no regret.

### ⭐⭐⭐⭐⭐ Full function speed square
*by D***D on September 20, 2025*

Exactly like it’s big brother but small enough to fit in an apron. I checked it for square and 45 degrees and it right on the money. Weighs practically nothing because of its aluminum construction and clear markings. Excellent value and perfectly square. I can stop looking for squares now since I have four different sizes up to 18”.

### ⭐⭐⭐⭐⭐ Swanson Speed Square
*by M***Z on October 28, 2025*

The Swanson speed square is an amazing tool, and a must have in your tool inventory. I use it for all of my DIY projects, that involves carpentry. The tool is of excellent quality that's built to last. Highly recommended!!!Two thumbs up. 👍 👍

## Frequently Bought Together

- Swanson Tool Co., Inc Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch
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**Shop now:** [https://www.desertcart.co.za/products/13087290-swanson-t0108-big-12-speed-square-layout-tool-with-blue](https://www.desertcart.co.za/products/13087290-swanson-t0108-big-12-speed-square-layout-tool-with-blue)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-01-30*