--- product_id: 263731140 title: "Swanson Tool Co S0107\"Big 12\" 12-Inch Speed Square Layout Tool With Blue Book" brand: "swanson tool co., inc" price: "R883" currency: ZAR in_stock: true reviews_count: 7 category: "Swanson Tool Co., Inc" url: https://www.desertcart.co.za/products/263731140-swanson-tool-co-s0107big-12-12-inch-speed-square-layout store_origin: ZA region: South Africa --- # 7-in-1 multi-tool versatility Includes expert Blue Book guide Heavy-gauge aluminum durability Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book **Brand:** swanson tool co., inc **Price:** R883 **Availability:** ✅ In Stock ## Summary > 📐 Elevate your craft with the Big 12 — where precision meets power! ## Quick Answers - **What is this?** Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book by swanson tool co., inc - **How much does it cost?** R883 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/263731140-swanson-tool-co-s0107big-12-12-inch-speed-square-layout) ## 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 - • **Built to Last:** Heavy-gauge aluminum alloy with matte finish ensures glare-free, rugged use on any job site. - • **Master Every Angle:** 7 tools in 1 for framing, mitering, and more—your all-in-one precision partner. - • **Blueprints in Your Pocket:** Swanson’s Blue Book included for expert roof and stairway layouts—impress clients with flawless plans. - • **Out-of-Square? No Problem:** Patented layout bar and included hardware help you nail perfect corners every time. - • **Precision at Your Fingertips:** Black gradations and 1/4 & 1/2 inch notches make scribing and measuring effortless and exact. ## Overview The Swanson Tool Co S0107 Big 12 is a 12-inch speed square layout tool crafted from heavy-gauge aluminum alloy with a matte finish to reduce glare. Combining seven essential tools—including framing, miter, and protractor squares—this multi-functional device features black gradations, 1/4 and 1/2 inch notches for precise scribing, and a patented layout bar for out-of-square corner detection. It comes with the Swanson Blue Book for expert roof and stairway layout guidance, making it a must-have for professional carpenters and serious DIYers alike. ## Description The Big 12® is seven tools in one: a framing square, try square, miter square, protractor, saw guide, stair gauge and out-of-square corner angle finder. It’s constructed of heavy-gauge aluminum alloy and includes the Layout Bar for use in determining out-of-square corners. Also included are the Swanson® Blue Book for roof and stairway layout and Layout Bar with hardware. Review: Hubby happy with the blue book - Bought this for my husband. Delivery was prompt and item was as expected. Hubby was so happy with the included blue book. Review: Good quality - The quality is nice and very useful ## Features - Heavy gauge aluminum alloy with matte finish to prevent glare - 1/4 in. and 1/2 in. spaced notches to facilitate scribing lines - Black gradations for easy reading - Patented layout bar - Great for deck framing and stairway building! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000056C0D | | Best Sellers Rank | #29,654 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Carpentry Squares | | Brand | Swanson Tool Co., Inc | | Brand Name | Swanson Tool Co., Inc | | Color | argentée | | Colour | argentée | | Customer Reviews | 4.8 out of 5 stars 30,011 Reviews | | Global Trade Identification Number | 00038987001079 | | Graduation Range | 1/4 Inches | | Graduation range | 1/4 Inches | | Included Components | Swanson Tool S0107 12-Inch Speed Square Layout Tool with Blue Book | | Item Dimensions L x W | 30.5L x 2.5W centimeters | | Item Type Name | Swanson Tool S0107 12-Inch Speed Square Layout Tool with Blue Book | | Item Weight | 816 g | | Manufacturer | Swanson Tool | | Material | Aluminum | | Material Type | Aluminum | | Model | S0107 | | Part Number | S0107 | | Product dimensions | 30.5L x 2.5W centimeters | | Style | Classic | | Style Name | Classic | | UPC | 038987001086 077347299954 799360176806 636123624009 732233480563 732454028056 752913178207 640025018118 038987001079 343538195030 | | Unit Count | 3.2808 Feet | ## Product Details - **Brand:** Swanson Tool Co., Inc - **Colour:** argentée - **Graduation range:** 1/4 Inches - **Material:** Aluminum - **Style:** Classic ## Images ![Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book - Image 1](https://m.media-amazon.com/images/I/81HwFpGmsrL.jpg) ![Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book - Image 2](https://m.media-amazon.com/images/I/81VbdnD9QmL.jpg) ![Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book - Image 3](https://m.media-amazon.com/images/I/61v6VSzK7xL.jpg) ![Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book - Image 4](https://m.media-amazon.com/images/I/81OXsPdFJDL.jpg) ![Swanson Tool Co S0107"Big 12" 12-Inch Speed Square Layout Tool With Blue Book - Image 5](https://m.media-amazon.com/images/I/81oK+lKos0L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Where is this square made** A: Dont know but i personally think a framing square with stair guages works better, its kind of cheap quality **Q: I am not a pro, I just want to do some wood working around the house here and there. Will this tool benefit me more than the 7inch version?** A: I work as a carpenter and i have both the 7inch and a 12inch version.I carry The 7inch speed square with me all the time and use it a lot, the 12inch sqaure i keep in the toolbox because it's size makes it unpractical to carry with me and to be honest I rarly take it out and use it, maybe once or twice a month.So as for using at home I would go for the 7inch.If you occasionally need to make a longer marking then 7inch you can lay a straight board along the 90 degree side, then remove the square and make your marking. That works really well:)Hope this was useful for you!/Claes **Q: I just bought the 12" speed square, The slot that is supposed to hold the rise portion is way to large for the supplied 1/4" bolt? anyone else?** A: I just bought the same exact item from two different big box retailers. I bought and returned the first purchase because I assumed that the manufacturer had issued a recall on the item and the retailer had neglected to pull the existing stock from shelves. Because I was beginning a critical new stair job and I had chipped the pivot point on the 15 year old 12" speed square that I already owned, I bought another one from the second retailer. The product was defective from both retailers....and this is 10 months after your Sept. 2014 post.....apparently the problem has not been corrected by the manufacturer. **Q: “first time to buy and use the speed square. should i start off with 6in or the 12in? Beside their size, what other difference do they have”** A: I would suggest the 7" speed square. If you are going to be cutting a lot of 2x12's then the 12" would be handy in addition to the 7''. The 12" square comes with a layout bar for cutting stairs. ## Customer Reviews ### ⭐⭐⭐⭐ Hubby happy with the blue book *by S***Y on 15 March 2021* Bought this for my husband. Delivery was prompt and item was as expected. Hubby was so happy with the included blue book. ### ⭐⭐⭐⭐⭐ Good quality *by A***Z on 19 May 2023* The quality is nice and very useful ### ⭐⭐⭐⭐⭐ Quality *by O***E on 9 April 2026* Love the old world quality built into this. Also own the smaller Speed Squares of the same brand. ## Frequently Bought Together - Swanson Tool Co S0107 "Big 12" 12-Inch Speed Square Layout Tool with Blue Book - Swanson Tool Co S0100 Pro Carpenters Construction Aluminium Speed Square - Johnson Level & Tool 405 Stair/Square Gauge Set – 2/Card, Brass Plated, 2 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/263731140-swanson-tool-co-s0107big-12-12-inch-speed-square-layout](https://www.desertcart.co.za/products/263731140-swanson-tool-co-s0107big-12-12-inch-speed-square-layout) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-07*