

📐 Elevate your drafting game with precision that lasts!
The Rena Chris Architectural Scale Ruler is a 12-inch, triangular aluminum alloy tool featuring 6 laser-etched imperial scales. Designed for architects, engineers, and designers, it offers durable, fade-resistant markings and a balanced ergonomic shape for precise, professional-grade measurements on blueprints and construction drawings.







| ASIN | B07QWRG5G7 |
| Best Sellers Rank | #1,493 in Office Products ( See Top 100 in Office Products ) #1 in Triangular Scales #2 in Drafting Tools & Drafting Kits |
| Date First Available | April 23, 2019 |
| Item Weight | 3.2 ounces |
| Item model number | THL-1005 |
| Manufacturer | THL-1 |
| Product Dimensions | 12 x 1 x 0.1 inches |
L**Z
Professional Feel at a Great Price
This scale ruler makes a strong first impression with its solid metal build and clean, precise markings. The aluminum body feels sturdy and slightly weighted, which helps it sit flat on drawings without sliding around. The etched markings are crisp and easy to read, with good contrast that doesn’t strain the eyes under desk lighting. The triangular shape feels balanced in hand, and the overall finish gives it a professional, durable look rather than something flimsy or disposable. After using it regularly for drafting and reviewing drawings over several weeks, it’s been consistently accurate and comfortable to work with. The different scales are easy to switch between, and the ruler glides smoothly across paper without catching edges. It holds up well in a backpack or desk drawer, with no visible wear or fading on the markings. One small drawback is that the metal edges can feel a bit cool and firm during long sessions, which may take some getting used to if you’re accustomed to lighter plastic tools. Overall, this is a great choice for students, designers, or professionals who want a reliable and precise measuring tool for regular use. It’s especially well suited for anyone working with detailed plans who values durability and clear markings. Those who prefer ultra-lightweight tools or softer edges may want a different option. For the accuracy, build quality, and long-term usefulness it offers, the price feels more than fair.
J**R
The perfect scale ruler
I often use a scale ruler for architectural use on exact dimensions on drawings. Plastic rulers are fine but not exact enough for the scale dimensions I want, this aluminum scale ruler is made of quality, allowing for sharp straight lines. It’s blue color is perfect for contrast, perfect size and all for a great price!!!
T**S
Very Fine Instrument
Very nice, very impressed. And it came with a form fitting protective case.
R**D
Perfect Tool
It is made with precision. The markings are very visible and it’s just what I needed.
B**N
Great ruler
Easy to read and a great ruler
M**C
Nicely manufactured
I don't use this as the intended purpose. I j7st use it to draw with. Looks good, feels good in the hand and the engraving is good very easy to read.
B**.
Great Metal Ruler with High Accuracy
This is an excellent architectural scale. Highly visible and built to last. And the highly visible color makes it stand out from everything else. A Quality Metal Ruler
M**S
Good ruler
Good product
S**I
A useful tool for my drawing. The shape helps me to move it around easily. The markings on it are very clear and the ruler feels substantial and good quality. I am also pleased to have found a ruler with exclusively inch measurements and not metric. It also comes in a rather nice plastic box like a Toblerone box! Pleased with my purchase.
A**R
Perfect, my husband can see white numbers on black background. Very sturdy, easy to store in own case. Brilliant
M**S
Have always hated metric measurements, so to get this makes me feel comfortable in knowing what I’m doing. Clear figures and nice sturdy construction and weight.
D**Z
Quería una regla con esta forma y metálica, están increíbles pero no miden en centímetros, son profesionales y yo quería una regla duradera, bonita escolar. No me sirvieron pero están hermosas.
Trustpilot
2 weeks ago
2 days ago