---
product_id: 121592692
title: "Ductulator Trane- Duct Sizing Calculator, English & Metric Units"
brand: "builder'book inc."
price: "209.87 DT"
currency: TND
in_stock: true
category: "Builder'book Inc."
url: https://www.desertcart.tn/products/121592692-ductulator-trane-duct-sizing-calculator-english-and-metric-units
store_origin: TN
region: Tunisia
---

# Dual-unit precision Rotary dial ease Protective sleeve included Ductulator Trane- Duct Sizing Calculator, English & Metric Units

**Brand:** builder'book inc.
**Price:** 209.87 DT
**Availability:** ✅ In Stock

## Summary

> 📐 Master duct sizing like a pro—because precision never goes out of style.

## Quick Answers

- **What is this?** Ductulator Trane- Duct Sizing Calculator, English & Metric Units by builder'book inc.
- **How much does it cost?** 209.87 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/121592692-ductulator-trane-duct-sizing-calculator-english-and-metric-units)

## Best For

- builder'book inc. enthusiasts

## Why This Product

- Trusted builder'book inc. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Highly rated by HVAC professionals for accuracy and ease, making you part of an elite community.
- • **Streamlined Sizing:** Rotary calculator design makes complex duct calculations intuitive and fast.
- • **Comprehensive Scales:** Includes friction loss, air volume, velocity, and duct diameter scales for total system accuracy.
- • **Durability Meets Design:** Comes with a protective sleeve featuring ASHRAE recommended air velocities to safeguard your tool and your work.
- • **Precision in Every Turn:** Effortlessly switch between English & Metric units for flawless duct sizing.

## Overview

The Ductulator Trane is a portable, rotary duct sizing calculator designed for HVAC professionals and managers who demand precision and efficiency. Featuring dual English and Metric units, it simplifies duct dimension calculations using the equal friction design method. With scales for friction loss, air volume, velocity, and duct diameters, plus a protective sleeve with ASHRAE guidelines, it’s the essential tool for accurate, reliable duct system design.

## Description

Calculating duct dimensions is a cinch with the Ductulator! The Ductulator - Duct Sizing Calculator is a hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. This accurate, easy-to-use duct size calculator includes scales for friction loss per unit length, air volume, air velocity, round duct diameter and rectangular duct diameters. One side uses English units, the other side uses Metric units. Includes a protective sleeve with ASHRAE recommended design air velocities for system components/applications.

## Features

- BUILDER'BOOK INC.
- Calculating duct dimensions is a breeze with Ductulator! The Ductulator - Duct Sizing Calculator is a portable rotary calculator used to scale feed and return duct systems using the equal friction design method. This accurate and easy-to-use duct size calculator includes scales for friction loss per unit length, air volume, air speed, round duct diameter, and rectangular duct diameters. One side uses English units, the other

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KCZC2DF |
| Best Sellers Rank | #228,344 in Office Products ( See Top 100 in Office Products ) #380 in Basic Office Calculators #481 in Laser Levels |
| Brand | BUILDER'BOOK INC. |
| Calculator Type | Specialized (HVAC Duct Sizing) |
| Color | silver |
| Customer Reviews | 4.8 4.8 out of 5 stars (32) |
| Display Type | LED or VFD |
| Enclosure Material | Plastic |
| Manufacturer | BUILDER'BOOK INC. |
| Mfr Part Number | 35544337 |
| Model Name | Ductulator Trane- Duct Sizing Calculator, English & Metric Units |
| Model Number | 35544337 |
| Number of Batteries | Nonstandard Battery batteries required. |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BUILDER'BOOK INC.
- **Calculator Type:** Specialized (HVAC Duct Sizing)
- **Color:** silver
- **Number of Batteries:** Nonstandard Battery batteries required.
- **Power Source:** Battery Powered

## Images

![Ductulator Trane- Duct Sizing Calculator, English & Metric Units - Image 1](https://m.media-amazon.com/images/I/315JsIRToSL.jpg)

## Frequently Bought Together

- Ductulator Trane- Duct Sizing Calculator, English & Metric Units
- Air Duct Sizing Calculator
- REVISED AND UPDATED! HVAC Tables, Equations & Rules of Thumb Quick-Card

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**Shop now:** [https://www.desertcart.tn/products/121592692-ductulator-trane-duct-sizing-calculator-english-and-metric-units](https://www.desertcart.tn/products/121592692-ductulator-trane-duct-sizing-calculator-english-and-metric-units)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-10*