JOHNSON LEVELS JOH-430 - 8" x 12" Steel Carpenter Square
JOHNSON LEVELS JOH-430 - 8" x 12" Steel Carpenter Square
Delivery usually 2–5 business days.
The Johnson Level JOH-430 is a professional-grade 8" x 12" steel carpenter square engineered for high-precision layout work, framing, and pattern marking. Constructed from rugged, high-quality tempered steel, this square is built to withstand the rigorous demands of active jobsites while maintaining its structural integrity. It features EZ Read™ thermal-bonded numbers and graduations that provide high-contrast visibility in low-light conditions, while a specialized anti-rust powder coating ensures long-term durability and resistance to the elements.
Performance Features
- EZ Read™ Visibility: Features thermal-bonded black numbers and 1/8" graduations for rapid, error-free reading.
- Heavy-Duty Construction: Built from rugged tempered steel to resist bending and warping under heavy use.
- Corrosion Resistance: Finished with a clear, anti-rust powder coating to prevent oxidation and extend tool life.
- Versatile Application: Ideal for laying out patterns in framing, roofing, and stairway work, as well as checking for squareness on bench saws.
- Precision Stamping: Graduations are permanently stamped into the steel for lifetime accuracy that won't wear off.
Technical Specifications
| Body Size | 12" x 1-1/2" |
| Tongue Size | 8" x 1" |
| Thickness | 1/8" |
| Material | Tempered Steel |
| Graduations | 1/8", 1/16" |
| Finish | Anti-Rust Powder Coat |
| Squareness Tolerance | +/- 0.031" |
What's Included
- (1) 8" x 12" Steel Carpenter Square (Model 430)
Shipping & Returns
Shipping & Returns
Free Shipping Canada Wide* on Orders Over $149
Orders over $149 (before tax) that weigh 50 lb or less ship free.
Free Shipping Policy Restrictions
Large or heavy items (over 50 lb) ship at the most economical rate available. Orders shipping to the Northwest Territories, Yukon and Nunavut are not eligible for free shipping. *Our free shipping policy is subject to change without notice.
How long will it take to get my order?
Delivery usually 2–5 business days after dispatch. Expedited shipping is available at extra cost on request.
Most in-stock orders placed by 1:00 PM ET (Monday–Friday) ship the same day. Orders placed after 1:00 PM ET, on weekends or on holidays ship the next business day.
Large, overweight and LTL freight orders may need 1 or more extra business days to prepare.
What shipping carriers do you use?
Most orders are shipped courier via Purolator, UPS, or Canada Post. We will use other carriers at our own descretion depending on Product size and weight.
Do you ship overseas?
We are not currently shipping to the USA. We are currently mainly shipping within Canada, and we are slowly adding Other Countries. Please Contact us if you are unable to Checkout. See more out International Orders HERE
I only received part of my order, where is the rest?
Your order may ship in more than one package depending on the quantity or size of the products purchased. Also, items in your order may ship from either of our 2 locations and arrive in separate deliveries.
Sometimes we place smaller items from your order inside of one box to save on shipping so always open all boxes to confirm what you have recieved.
Can I return my product?
Returns and exchanges follow the manufacturer's satisfaction guarantee for each brand. Please contact us before sending anything back, and we will tell you where to send it.
If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping.
You pay the shipping cost of returning an item, or you can bring it to either of our stores.
See our Returns Policy and Warranty Information for details.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Got questions about this product?
Get instant answers powered by AI
Popular Questions
AI-generated answers are for informational purposes. Verify all specifications and policies with official documentation.
Discover more in our FAQ
Shoot our team an email & we’ll get back to you ASAP
How fast will my order ship?
How fast will my order ship?
Most in-stock orders placed before 1 PM ET (Mon–Fri) ship the same day. Delivery usually 2–5 business days after dispatch. You will get a tracking email once your order ships.
Do you ship internationally?
Do you ship internationally?
We mainly ship within Canada and are not currently shipping to the USA. Please contact us about other international orders.
What is your return policy?
What is your return policy?
Returns and exchanges follow the manufacturer's satisfaction guarantee. Please contact us before sending anything back. If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping. You pay return shipping, or you can bring the item to either of our stores. See our Returns Policy and Warranty Information.

