---
product_id: 13087290
title: "Swanson Tool Co., Inc Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch"
brand: "swanson tool co., inc"
price: "฿2412"
currency: THB
in_stock: true
reviews_count: 13
category: "Swanson Tool Co., Inc"
url: https://www.desertcart.co.th/products/13087290-swanson-tool-co-inc-swanson-t0108-big-12-speed-square
store_origin: TH
region: Thailand
---

# 12-inch precision layout 60-page expert blue book 7-in-1 multi-tool design Swanson Tool Co., Inc Swanson T0108 Big 12 Speed Square Layout Tool with Blue Book, Plain gradations, 12-Inch

**Brand:** swanson tool co., inc
**Price:** ฿2412
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build game — the only square you’ll ever need!

## Quick Answers

- **What is this?** Swanson Tool Co., Inc 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?** ฿2412 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/13087290-swanson-tool-co-inc-swanson-t0108-big-12-speed-square)

## 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:** Heavy-gauge aerospace aluminum with matte finish ensures glare-free, long-lasting accuracy.
- • **Effortless Marking & Scribing:** 1/4 in. and 1/2 in. spaced notches make line scribing fast and flawless.
- • **All-in-One Carpentry Powerhouse:** Combines framing square, try square, miter square, protractor, saw guide, stair gauge, and angle finder in one sleek tool.
- • **Trusted by Pros, Loved by DIYers:** Top-rated, USA-made tool with a 1-year warranty that elevates your craftsmanship and credibility.
- • **Master Your Projects with Confidence:** Includes the exclusive 60-page Swanson Blue Book for expert roof and stairway layouts using the One-Number Method.

## Overview

The Swanson T0108 Big 12 Speed Square is a precision-crafted, heavy-gauge aerospace aluminum layout tool that integrates seven essential carpentry functions into one. Featuring glare-resistant matte finish, easy-to-read plain gradations, and handy scribing notches, it comes packaged with a 60-page expert blue book for advanced roof and stairway layouts. Trusted by professionals and DIY enthusiasts alike, this USA-made tool offers durability, accuracy, and a 1-year warranty to ensure your projects look sharp and professional every time.

## 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 | #1,733 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 (23,138) |
| 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 Tool Co., Inc 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)

## Available Options

This product comes in different **Size, Style** options.

## 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”.

### ⭐⭐⭐⭐⭐ Heavy duty
*by C***S on January 5, 2026*

Great sturdy quality. Clear markings

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-19*