--- product_id: 263731140 title: "The Big 12 with Layout Bar" brand: "swanson tool co., inc" price: "£40.55" currency: GBP in_stock: null reviews_count: 7 category: "Swanson Tool Co., Inc" url: https://www.desertcart.co.uk/products/263731140-the-big-12-with-layout-bar store_origin: GB region: United Kingdom --- # 7-in-1 multi-tool versatility Includes expert Blue Book guide Heavy-gauge aluminum alloy durability The Big 12 with Layout Bar **Brand:** swanson tool co., inc **Price:** £40.55 **Availability:** ❌ Out of Stock ## Summary > 📐 Elevate your craft with the Big 12 — the only square you’ll ever need! ## Quick Answers - **What is this?** The Big 12 with Layout Bar by swanson tool co., inc - **How much does it cost?** £40.55 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/263731140-the-big-12-with-layout-bar) ## 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 - • **Unlock Pro-Level Layouts:** Patented layout bar and included Blue Book guide make deck framing and stairway building a breeze. - • **Trusted by Thousands of Pros:** 4.8-star rating from over 29,000 users proves this is the tool you can’t afford to miss. - • **Effortless Marking & Measuring:** 1/4 in. and 1/2 in. spaced notches for flawless scribing every time. - • **Master Every Angle with Precision:** 7 tools in one for framing, mitering, and more—your all-in-one layout powerhouse. - • **Built to Last, Designed to Perform:** Heavy-gauge aluminum alloy with matte finish prevents glare and ensures long-lasting accuracy. ## Overview The Swanson Tool Co S0107 Big 12 is a 12-inch speed square that combines seven essential carpentry tools into one rugged, heavy-gauge aluminum alloy layout tool. Featuring a patented layout bar, glare-resistant matte finish, and precise scribing notches, it includes the Swanson Blue Book for expert roof and stairway layouts. Perfect for professionals and DIYers aiming for flawless framing, stair building, and more. ## 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 | | ASIN | B000056C0D | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #16,206 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Carpentry Squares | | Color | argentée | | Customer Reviews | 4.8 4.8 out of 5 stars (29,518) | | Customer reviews | 4.8 4.8 out of 5 stars (29,518) | | Date First Available | 7 August 2012 | | Date First Available | 7 August 2012 | | Department | Unisex-Adult | | Included components | Swanson Tool S0107 12-Inch Speed Square Layout Tool with Blue Book | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 816 g | | Item model number | S0107 | | Item model number | S0107 | | Manufacturer | Swanson Tool | | Manufacturer | Swanson Tool | | Material | Aluminum | | Measurement Accuracy | 0.05 | | Measurement System | Inch | | Part number | S0107 | | Power source type | Manual | | Product Dimensions | 30.48 x 2.54 x 30.48 cm; 816.47 g | | Product Dimensions | 30.48 x 2.54 x 30.48 cm; 816.47 g | | Size | 12 Inch | | Style | Classic | ## Product Details - **Brand:** Swanson Tool Co., Inc - **Colour:** argentée - **Graduation range:** 1/4 Inches - **Material:** Aluminum - **Style:** Classic ## Images ![The Big 12 with Layout Bar - Image 1](https://m.media-amazon.com/images/I/51krGziF7yS.jpg) ## Available Options This product comes in different **Color, 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 ### ⭐⭐⭐⭐⭐ Review *by U***O on 3 August 2023* Me es muy útil. De buen tamaño para usarlo también como guía para sierra circular asi como también su grosor es ancho ya que he visto otras escuadras rápidas muy delgadas. también es útil para que asiente bien la madera cuando vas a poner un tejabán. Estoy satisfecho con el producto. ## 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.uk/products/263731140-the-big-12-with-layout-bar](https://www.desertcart.co.uk/products/263731140-the-big-12-with-layout-bar) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*