Search  for anything...

Rena Chris Architectural Scale Ruler: 12" Imperial Aluminum Alloy Metal Architecture Measuring Tools, Engineering Drafting Construction Drawing Blueprints Triangular Architect Scaling Rulers 12 Inches

  • Based on 0 reviews
Condition: New
Checking for the best price...
$6.99 Why this price?
Save $43.00 was $49.99

Buy Now, Pay Later


As low as $1 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Jun 22
Order within 8 hours and 26 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Color: Blue


Features

  • 12" triangular architect scale designed to facilitate the drafting and measuring of architectural drawings, such as floor plans, blue Prints, and orthographic projections
  • Triangular ruler features 3 sides with 6 different scales, and made from high Impact aluminum, build to last
  • Laser etched scales never fading. Architect ruler with enduring laser cut imperial prints for accuracy. They will not wipe or scratch off ever
  • Professional grade for accuracy color coded triangular scale for easy and quick selection of the desired scale
  • Standard imperial measurements: 1-1/2, 1, 3/4, 3/8, 3/16, 3/32, 1/2, 1/4, 1/8, 3, 16

Material: Aluminum


Brand: Rena Chris


Color: Blue


Style: Triangle ruler


Graduation Range: 1/16 Inches


Brand Name: Rena Chris


UPC: 631161477273


Model: THL-1005


Part Number: THL-1005


Unit Count: 1.0 Count


Manufacturer: THL-1


Item Weight: 3.2 ounces


Material Type: Aluminum


Graduation Range: 1/16 Inches


Item Dimensions L x W: 12"L x 1"W


Color: Blue


Style Name: Triangle ruler


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Professional Feel at a Great Price Professional Feel at a Great Price
Color: Blue
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. ... show more
Reviewed in the United States on February 1, 2026 Reviewed in the United States on February 1, 2026 by Leandro Tellez

  • The Golden Ruler
Color: Blue
If your looking for a slyck and beautiful hard ruler, this is it. It is sturdy and feels great in the hand. The blue paint is still on it after 10 months of use!
Reviewed in the United States on March 25, 2026 by Jacob Smith

  • Easy to read
Color: Blue
Clearly marked and light. Excellent rule
Reviewed in the United States on April 13, 2026 by Ralph

  • The perfect scale ruler
Color: Blue
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!!! ... show more
Reviewed in the United States on January 27, 2026 by Jeffry Utter

  • Solid construction
Color: Blue
Good product
Reviewed in the United States on April 21, 2026 by Mathew Varkey

  • Solid made.
Color: Blue
I picked up this Rena Chris architectural scale ruler for a home design project, and overall I've been pleased with its performance. The all-aluminum construction gives it a nice balance—light enough to carry around easily but substantial enough that it doesn't feel cheap or toy-like in your hand. The triangular shape is comfortable to grip, and I appreciate that it doesn't roll off the drafting table like flat rulers tend to do. The laser-etched markings are crisp, precise, and have held up well so far without any signs of fading or rubbing off, which was a concern I had before purchasing. I've checked the scales against a couple of digital measuring tools I own, and everything lines up accurately, which gives me confidence in the work I'm producing. The range of scales covered is exactly what most residential and small commercial projects would require, and having them all on one tool saves me from constantly switching between different rulers. That said, there are a couple of small things that keep this from being a perfect five-star product. The surface finish, while smooth, is a bit too slick for my liking—on glossy blueprint paper or laminated drawings, the ruler has a tendency to slide if you're not pressing down firmly, which can be mildly frustrating when you're in the middle of precise line work. A slightly textured edge or a subtle non-slip coating would have been a thoughtful addition. Also, some of the finer scale markings, particularly on the more compressed scales, require really good lighting and young eyes to read without straining. If you work in a dimly lit space or have vision concerns, you might find yourself reaching for a magnifying glass. All in all, though, for the price point this is a solid value. It's well-made, accurate, and covers all the essential scales a student, hobbyist, or even a working drafter would need day to day. I'd comfortably recommend it with the small caveat to be mindful on slippery surfaces and to keep proper task lighting on your workspace. ... show more
Reviewed in the United States on April 30, 2026 by RonaldoLopez

  • really nice quality architectrual ruler
Color: Blue
really nice quality metal ruler for the price, accurate dimensions, and even came with a nice cover so it doesnt get all scratched up
Reviewed in the United States on March 16, 2026 by Astrid Solecki

  • Quality beautiful ruler Quality beautiful ruler
Color: Blue
As described, high quality, very well packaged.
Reviewed in the United States on May 19, 2026 Reviewed in the United States on May 19, 2026 by JAH

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...