## How to Use an Architect Scale Ruler

To operate an architect scale ruler, first look at the Title Block on the blueprint. It is located in the bottom right corner. This area contains valuable information to help you choose the correct scale: title of the drawing, the owner or customer of the project, names of the designer, drawer, pertinent ID numbers, and the supervisors. It has the page number, if multiple pages are involved, and the version number. It also has areas for the signatures of those who approved the drawing, and the dates they approved it.

There is also a small block that says what scale the drawing was made in.  This is what you really need. Some examples are: 1″ = 30′, 1/4″=1′, 1/8″=1′, 1/2″=1’0″. If it is 1/8=1′, then use the side of the tape (more)……

## How a Diameter Tape Can Find a Pipe Diameter For You

How do you work a diameter tape? You don’t. It works for YOU.

A Lufkin Diameter Tape Measure will make your job quick and easy. Just wrap it around a pipe, pipeline, or other round object, and read its diameter right off the tape. Yes, you wrap it around the “circumference”, but it reads “diameter” for you. You don’t need to divide by pi (3.14159).

See our 2 minute diameter tape video to learn a few other details about this valuable tool.

## What Can A Pipe Diameter Measuring Tape Do For Me?

Most people don’t use a pipe diameter measuring tape. The reason is not that they don’t need one. The reason is that they don’t know how powerful it is. They don’t know what it can do for them. Just ask the people who use one every day:

• pipe installers
• plumbers
• pipeline inspectors
• pipeline installers and repairmen
• HVAC installers
• car mechanics
• boat mechanics
• oil and gas rig workers
• sport ball makers

They will tell you this: If you want to know the outside diameter of a pipe or any round object, just wrap the diameter tape around its circumference, and read the diameter on the tape. Simple. You don’t have to divide by pi. The best part of this: Even if the pipe is not perfectly round, the od diameter tape will give you the average outside diameter as if it were perfectly round.