and 52,000+ others love our products.
Mozy™ ProLock Stair Gauges.
Mozy™ ProLock Stair Gauges.
Measure Once. Cut with Confidence.
Set your layout faster. Keep every mark consistent.
Build stairs, rafters, and frames with confidence.
✅ Locks Securely to Framing Squares
✅ Fast, Repeatable Measurements
✅ Helps Maintain Precise Layouts
✅ Durable Aluminum Construction
✅ Compact & Easy to Carry
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Shipping & Delivery
Shipping & Delivery
We process all orders within 1–3 business days.
Shipping typically takes 6-12 business days, depending on your location.
✅ 30-Day Worry-Free Return Policy
If you’re not completely satisfied, contact us at support@mozy.store — we’ll make it right with easy returns and full refunds.
Our Guarantee
Our Guarantee
At Mozy™, your back health and satisfaction come first.
That’s why every Mozy™ ProLock Stair Gauges. is protected by our 30-Day Comfort Guarantee.
If it doesn’t feel right — for any reason — you’re covered with free returns and hassle-free refunds.
No stress, no pressure, no questions asked.
Price-match guarantee
30 Day Guarantee
Free Shipping (Over $40)
Mozy™ ProLock Stair Gauges.
Great product quality, fast delivery, and excellent customer service. Very satisfied with my first purchase and will definitely shop here again!
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Built for More Than Stairs
Ideal for stair stringers, rafters, framing, marking, and everyday woodworking. Fits compatible squares and rulers up to 0.31 inches thick for versatile jobsite use.
Perfect 90° Layouts Made Easy
Keep your square positioned accurately while checking posts, boards, and workpieces. A simple way to achieve consistent 90-degree layouts without constantly resetting your measuring tool.
Lock In Precision Every Time
The hexagonal body provides stable positioning while the non-slip thumbscrew locks firmly onto your square, helping you maintain consistent measurements throughout every cut and layout.
Set It. Lock It. Mark It.
Simply adjust the thumbscrew, clamp it securely onto your framing square, then mark repeated measurements with speed and consistency. No complicated setup or extra tools.
Pocket-Sized. Jobsite Ready.
Clip it to your belt, tool bag, or pocket and take it anywhere. Compact dimensions keep your precision gauges organized, protected, and ready for work.
Precision That Goes Anywhere
Built from durable aluminum for everyday jobs. Compact, lightweight, and easy to carry, so accurate layout work is always within reach wherever you’re working.
Built for Precision — Faster Layouts, Cleaner Cuts
Set your measurements once and repeat them with confidence. Mozy™ ProLock securely attaches to your framing square, helping make stair, rafter, and woodworking layouts faster and easier.
91%
reported faster layout and marking, reducing the need to repeatedly measure and reposition their framing square during woodworking projects.
88%
said the secure locking design stayed firmly in place, helping maintain consistent positioning while marking multiple cuts.
90%
found it easier to achieve repeatable, accurate layouts for stair stringers, rafters, framing, and other common woodworking projects.
86%
loved the compact aluminum design, making the gauges lightweight, durable, and easy to keep close at hand on the jobsite.
30-Day Money-Back Guarantee
We’re so confident in the power of Mozy to help you protect what matters most, we don’t want you to spend a cent unless it truly gives you peace of mind.
That’s why we offer a 30-day, no-questions-asked guarantee.
If it doesn’t help you feel more secure...If you don’t find it easy to use, reliable, and discreet...Or if it simply doesn’t meet your expectations —we’ll refund you in full. No hassle. No pressure.
Because your peace of mind should always come first — not our profit.
Our Warehouse
With over 5000 orders per day, we ensure your orders are securely stored and shipped lightning fast. Experience hassle-free shopping with our large inventory and efficient delivery system. Your one-stop destination for variety and reliability!
GOT QUESTIONS?
We've Got Answers!
What is the Mozy™ ProLock used for?
It helps position your framing square for faster, repeatable layouts when working on stair stringers, rafters, framing, and other woodworking projects.
How do I use it?
Slide each gauge onto your framing square, adjust it to the desired position, then tighten the thumbscrew to lock your measurement in place.
Will it fit my framing square?
It fits compatible flat-edged squares and rulers up to approximately 0.31 in (8 mm) thick. It is not designed for raised-lip edges.
Will the gauges move while marking?
The thumbscrew design provides a secure grip when properly tightened, helping maintain consistent positioning while you mark repeated measurements.
What is it made of?
The gauges are made from lightweight, durable aluminum alloy and include a carabiner for convenient storage and easy carrying on the job.