
Aluminum Stair Gauge & Framing Square Clamp
Turn Any Framing Square Into A Repeat-Mark Layout Tool
Secure this stair gauge onto a framing square or ruler to mark consistent angles, stair stringers, rafters and repeated layout lines faster with fewer remeasurements.
Sale price $19.99 Β· Compare at $45.99 Β· Colors: Black-Blue, Black, Blue, Yellow, Red Β· Buy 1 / Buy 2 Free 1.

Carpentry layout pain points
Repeating the same measurement wastes time and increases errors
When laying out stair stringers, rafters or repeated cuts, constant remeasuring slows the job and makes small errors more likely.

Core benefits
Faster layout, stronger grip and cleaner repeat marks
Attach once, lock the knobs and repeat your marks with better control across woodworking and framing jobs.
Stairs, rafters and saw guides.
Lightweight, strong and rust-resistant.
Easy tightening, even with gloves.
Keep it within reach.

Versatile Carpentry Tool
Securely attaches to a framing square or ruler, transforming it into a practical layout tool for stair layouts, rafter framing and saw guides.
- Stair stringer layout
- Rafter framing reference
- Saw guide and repeat marking support

Durable Aluminum Construction
Crafted from high-quality aluminum, this tool is lightweight yet strong enough for job-site conditions and long-lasting performance.
- Lightweight aluminum body
- Rust-resistant construction
- Durable for job site and workshop use

Secure Locking Mechanism
The anti-slip knurled knobs help lock the gauge in place for consistent, slip-free measurements and repeatable results.
- Easy grip knob texture
- Firm lock on square or ruler
- Consistent repeated measurement marks

Portable Carabiner Clip
The built-in carabiner lets you attach the gauge to your tool belt or bag so it stays easy to grab while moving around the job site.
- Attach to belt, bag or pouch
- Reduces lost small tools
- Always within quick reach
How to use
Clamp, lock and repeat your marks
Confirm your layout measurement before cutting, and keep fingers clear when using saws or power tools.
Attach
Slide the gauge onto your framing square or ruler.
Lock
Tighten the knurled knobs firmly so it does not slip.
Mark
Repeat stair, rafter or angle marks quickly and consistently.
| Need | Aluminum Stair Gauge Clamp | Manual Re-Measuring |
|---|---|---|
| Repeat Marks | Lock once and mark repeatedly. | Measure each mark again. |
| Lumber Edge Grip | Taller hexagonal profile clears rounded edges. | Flat gauges can miss contact. |
| Jobsite Durability | Aluminum construction resists rust. | Cheaper tools may bend or break. |
| Portability | Carabiner clip attaches to tool belt. | Small pieces are easy to lose. |
Choose your color
Pick one or stock up with Buy 2 Free 1
Available in Black-Blue, Black, Blue, Yellow and Red.
Buy 1
$19.99
- Choose any color
- Good for first trial
- 56% off vs $45.99
Buy 2 Free 1
3 PCS
- One for shop, one for jobsite
- Great for teams and gifts
- Matches product quantity option
5 Colors
Mix Style
- Black-Blue, Black, Blue
- Yellow and Red available
- Easy to spot in tool bag
Product visuals
Before / after, color and professional use

Taller Hexagonal Profile
Clears rounded lumber edges better than standard flat gauges.

Professional Results
Useful for carpentry layouts, repeated marks and jobsite work.

Blue Option
Bright aluminum color stands out in a toolbox.

Product Specs
- Product NameAluminum Stair Gauge & Framing Square Clamp
- Sale Price$19.99
- Compare Price$45.99 regular compare price shown on product page
- Discount56% OFF shown on product page
- ColorsBlack-Blue, Black, Blue, Yellow, Red
- MaterialAluminum
- QTY OptionsBUY 1; BUY 2 FREE 1
- Package Includes1 Γ Aluminum Stair Gauge & Framing Square Clamp
Purchase support
Shop with confidence
FAQ
Before you buy
What is this tool used for?
It clamps onto a framing square or ruler to help create repeatable marks for stair stringers, rafters, saw guides and layout work.
What colors are available?
The product page lists Black-Blue, Black, Blue, Yellow and Red.
What material is it made from?
The specification section lists aluminum construction.
What quantity options are available?
The page lists BUY 1 and BUY 2 FREE 1.
How do I make sure it does not slip?
Place it on the framing square or ruler, align it to your measurement, then tighten both knurled knobs firmly before marking.
Make stair, rafter and framing marks faster
Choose a durable aluminum stair gauge clamp for repeatable layout accuracy, faster marking and easier jobsite carry.