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JOHNSON LEVEL Rafter Square: 1/2 in Center-to-Edge Heel Wd, 1/4 in, Top, 12 in Square Size - Rafter Squares
JOHNSON LEVELRafter Squares

JOHNSON LEVEL Rafter Square: 1/2 in Center-to-Edge Heel Wd, 1/4 in, Top, 12 in Square Size

The JOHNSON LEVEL Rafter Square is a 12-inch aluminum rafter square with a 1/2-inch center-to-edge heel width. It features etched markings in inch units, including a degree scale, with graduations of 1/8 inch and 1/4…

SKU 3G-OTH-307157

Also listed as: 19041200 · 1904 1200

Brand
JOHNSON LEVEL
Item
Rafter Square: 1/2 in Center-to-Edge Heel Wd, 1/4 in, Top, 12 in Square Size
Category
Rafter Squares
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

JOHNSON LEVEL
Manufacturer Part Number
1904-1200
Type
1/4 in, Top, Aluminum
Square Size
12 in

Technical Documents

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JOHNSON LEVEL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JOHNSON LEVEL Rafter Square is a 12-inch aluminum rafter square with a 1/2-inch center-to-edge heel width. It features etched markings in inch units, including a degree scale, with graduations of 1/8 inch and 1/4 inch. This product is identified by manufacturer part number 1904-1200.

Frequently Asked Questions

What is the JOHNSON LEVEL Rafter Square used for?

The JOHNSON LEVEL Rafter Square is used for marking and measuring angles in carpentry and construction, particularly for cutting rafters, stairs, and framing. Its 12-inch aluminum body with etched inch graduations and degree scale provides durable, accurate layout for roof pitches and common joinery.

What are the specifications of the JOHNSON LEVEL Rafter Square 1904-1200?

The JOHNSON LEVEL Rafter Square 1904-1200 has a 12-inch square size, 1/2-inch center-to-edge heel width, and is made of aluminum. Markings are etched in inch units with 1/8-inch and 1/4-inch graduations, plus a degree scale. The top edge is 1/4-inch thick.

Where to buy the JOHNSON LEVEL Rafter Square worldwide?

3G Electric supplies the JOHNSON LEVEL Rafter Square 1904-1200 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this aluminum rafter square.

How to maintain the JOHNSON LEVEL Rafter Square?

To maintain the JOHNSON LEVEL Rafter Square, clean it after use with a dry cloth to remove debris and prevent corrosion. Store in a dry tool box or pouch to protect the etched markings. Avoid dropping or bending the aluminum body to preserve accuracy for layout work.

Used in

Common applications for JOHNSON LEVEL
Construction framing – Johnson Level torpedo level (MPN 1411-0900) for checking plumb and level on studs and joists
Metal fabrication – Johnson Level combination square (MPN 400) for layout and squaring of sheet metal
Drywall installation – Johnson Level drywall T-square (MPN JTS481) for cutting and aligning gypsum boards
Machinery alignment – Johnson Level bullseye level (MPN 100) for leveling equipment bases in all directions
Distance measurement – Johnson Level laser distance meter (MPN LDM85) for room dimensions in facility layout
Surveying and laser setup – Johnson Level elevating tripod (MPN 40-6330) for mounting laser levels on uneven terrain

JOHNSON LEVEL Products

3G Electric supplies JOHNSON LEVEL rafter squares. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
JOHNSON LEVEL Carpenter Square: 8 in Base Lg, 8 in x 1 in, 12 in x 1 1/2 in, Clear, Anodized, Inches (MPN CS10)
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JOHNSON LEVEL Carpenter Square: 8 in Base Lg, 8 in x 1 in, 12 in x 1 1/2 in, Clear, Anodized, Inches (MPN CS10)
JOHNSON LEVEL Framing Square: 24 in Base Lg, 24 in, 16 in x 24 in, Anodized, Aluminum, Inches, SAE (MPN CS7)
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JOHNSON LEVEL Framing Square: 24 in Base Lg, 24 in, 16 in x 24 in, Anodized, Aluminum, Inches, SAE (MPN CS7)
JOHNSON LEVEL Carpenter Square: 8 in Base Lg, 8 in x 1 in, 12 in x 1 1/2 in, Clear, Powder, Steel (MPN 430)
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JOHNSON LEVEL Carpenter Square: 8 in Base Lg, 8 in x 1 in, 12 in x 1 1/2 in, Clear, Powder, Steel (MPN 430)
JOHNSON LEVEL Drywall T-Square: 22 in Base Lg, 22 in, 48 in, Clear, Anodized, Aluminum, Inches, SAE (MPN JTS481)
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JOHNSON LEVEL Drywall T-Square: 22 in Base Lg, 22 in, 48 in, Clear, Anodized, Aluminum, Inches, SAE (MPN JTS481)
JOHNSON LEVEL Drywall T-Square: 22 in Base Lg, 22 in, 48 in x 2 in, Continuous Scribing Notches, SAE (MPN ADS48)
JOHNSON LEVEL
JOHNSON LEVEL Drywall T-Square: 22 in Base Lg, 22 in, 48 in x 2 in, Continuous Scribing Notches, SAE (MPN ADS48)
JOHNSON LEVEL Try Square: 4 3/16 in Base Lg, 4 3/16 in x 1 1/2 in, 8 in x 9 1/2 in, Clear, Polished (MPN 1908-0800)
JOHNSON LEVEL
JOHNSON LEVEL Try Square: 4 3/16 in Base Lg, 4 3/16 in x 1 1/2 in, 8 in x 9 1/2 in, Clear, Polished (MPN 1908-0800)

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