Building Design / Graphical Data Entry


Either Right-J®Right-F280Right-CommLoad, or Right-N®

Simplified Designs and Calculations:

Right-Draw® is an easy-to-use data entry tool that simplifies the entire HVAC design process from load calculations and system design to duct and radiant designs and parts takeoff list. View overview video.

Note: This module cannot be used alone. Features listed below are only applicable when used in combination with other modules. Additional information on Right-Draw® can be found within each individual product page.

Main Features:

Right-Draw® replaces tedious line-by-line calculations and manual data entry, allowing data to be automatically entered by simply dragging and dropping HVAC Shapes™ from a toolbar onto the drawing screen. These smart objects store all of the property information of each shape, making it easy for you to complete your calculation and designs. With the Hotlink™ Technology, if an aspect of your design or load changes, all the affected components automatically adjust to the new conditions including designs, sizing, and parts take-off lists.

Right-Draw® Applications:

Complete room-by-room load calculations and designs.

Complete block load calculations in quickly and easily. Simply draw a box (or use the room wall-by-wall smart shape tool for complex shapes, add some windows and doors, and adjust your settings.

Draw a room and have 7 aspects of the load automatically entered in the load calculation worksheet. Every wall, ceiling, floor will be entered with infiltration, ventilation, duct loss and gain, and internal gains.

Easily import PDF and AutoCAD files into Right-Draw® for calculations from pre-drawn plans. Throw away your scale ruler and simply upload your CAD or PDF file into Right-Draw®, then trace the footprint. Choose to insert, scale and rotate multiple PDF files in the same way as DWG and DXF files, and write layers of your design back to a CAD file, if needed. You can even write back your notes and designs for paperless communication with builders.

Automatically identify adjacent conditioned and unconditioned spaces- even above and below. When drawing any two rooms together (beside, above, or below), this program will automatically identify adjacent spaces and treat them accordingly. For example, adiabatic surfaces (walls, ceilings, and floors between two conditioned spaces) are ignored for load purposes and partitions adjacent to areas designated as unconditioned are calculated accordingly. You can even specify the temperatures or calculate a surface as conditioned during one season and exposed to unconditioned space in the other.

Add an unlimited amount of floors and rooms. This includes unlimited zone capabilities with easy drag and drop zoning and color-coding. In Right-Draw®, each floor of your design is considered a “sheet”. Every sheet is its own layer within the program and can be locked or unlocked, visible or hidden, for ease of use. You may choose to print these sheets directly from the program, which each print out on individual pages.

Tackle irregular rooms. Right-Draw® can handle any room plan, with special tools for vaulted ceilings, dormers, knee-walls, walk-out basements, non-rectangular shapes, and more.

Group items like windows and doors to enter new data, make changes, or just fix mistakes. Choose to select and deselect items, or even select all like-items to make any necessary alterations to their properties, with minimal clicks.

Make global changes to orientation and building properties. Try different “What If?” scenarios for new construction.

Mirror part or all of your design vertically or horizontally. Our mirror function allows you to easily change the layout of the house, without having to completely scrap your work.

Choose to add low and high-velocity duct designs for sizing and radiant floor designs if needed.

Easily handle open to above/below areas.

Add installer instructions, plan review clarification, and other notes and details.

Add custom drawing shapes that automatically add items to a bill of materials.

Additional Technical Features

  • Riser Take Off – Ability to run a horizontal trunk or branch from the mid- section of a duct riser
  • Auto-Branch Run – Connects branches to registers or grills after trunk line is drawn
  • Auto-Place Registers – Automatic register placement using customized user rules
  • Auto-Input Flex Duct Define – A fixed length of flex duct to be installed at the end of every branch run to attenuate noise
  • Auto-Size Registers – Auto-sizes registers to maintain your target register face
  • New Register Types – Increase accuracy of registers with new register types like high wall, low wall, ceiling one way, ceiling two ways and more to choose from
  • Default Building Material Options – For partition walls and floors as well as vaulted ceilings
  • Smarter Glass Door Shapes – More default sliding glass door materials, including half wing and half fixed door type, to save design time.
  • Optional Side Notations for Vaulted Ceiling Objects
  • Smart-Checker for Branch-to-Trunk Connections – Warning displays when non-congruent sized branch-to-trunk.
  • Automated Layout of Duct and Radiant Designs
  • Easy to apply construction details with convenient pop-up menus
  • Typical Operations for Common Building Types
  • Customizable Drawing Object Catalog
  • Color Load Pie Charts
  • Metric & U.S. Units
  • Automated Parts Take Offs
  • Full Geometry Analysis
  • Easy VAV/Air Handler/Plant Layout
  • Drag and Drop System Assignments
  • Automated Takeoff of System Parts
  • Customizable Parts Library
  • Scaled Floor Plans
  • Wall Tool to quickly describe different wall types
  • Dorner Tool
  • Mirroring objects vertically or horizontally
  • Globally change various building or duct parameters


Right-Draw® links all of the other Right-Suite® Universal modules, making it fast and easy to complete load calculations, duct or radiant designs, and more. Thanks to our Hotlink Technology™, any changes you make will automatically update within the worksheet and every module you own- meaning no more data entry, no more mental gymnastics and no more wasted time.


What Our Customers Are Saying

"As a business owner, one of the things I like is that Right-Draw gives us a level of professionalism whether it’s a specialty home or a basic starter home. Within the past year, we have actually picked up new accounts because our customers were so impressed by the professionalism of our designs, particularly when we go up against contractors who are giving them what amounts to a crayon rendition on a napkin."

Mike Douglas

from Advent Air Conditioning

"I’ve always been a proponent of proper sizing of air conditioning equipment. For a standard 3,000 square foot, 4 bedroom house, doing the load calculations manually would take many hours. Then I found Wrightsoft, and by using their Right-J and Right-D, I was able to produce load calculations and duct design in about an hour."

Bob Pietrangelo

from Comfort Solution

“Hands down, the best tool for the job. Our HVAC partners love the 2-line mode drawings, and the export to REM/Rate module saves me at least 2 hours per project! That's a real game changer for us in terms of billable hours and revenue. Mike (sales) and Donald (tech support) have been there for us for over 10 years! Keep up the good work and thanks again guys. - Just another loyal happy customer.”

Mike Truitt

Resnet Rater from This Efficient House

“We are primarily a residential replacement air conditioning and heating company in Clearwater, Florida.  We found a serious issue with improperly sized air conditioning systems in existing homes that was causing issues with humidity, or lack of cooling.  We have used Manual J for over 30 years, but due to the time-consuming process of entering information manually, it was not done unless we had a consumer complaint.  We partnered with Wrightsoft over 15 years ago and can now do a Manual J Load Calculation in less than 30 minutes. Wrightsoft is always there for us, with tech support staff that answers the phone quickly, and offer advice when needed.  There is also a library of how to videos available 24 hours a day on their website. Wrightsoft has continued to be the best option for us for Manual J load calculations.”

Jim Heinz

President of Heinz Air Conditioning and Heating, Inc.

“I reached out to technical support [to complete an advanced task].  [Technical support] responded within an hour or two, guided me through the process, and even QC’d my spreadsheet (making corrections needed).  I was really impressed… I’ve found that my questions are always answered, usually within hours, and there’s never an attempt to dodge an issue. Wrightsoft’s responsiveness on the support side is what truly sets you apart.  Your team has made my life easier and using RSU has become an integral cornerstone to the work I do guiding our teams in the design and construction of high performance, soon to be ZNE affordable housing.”

Tim Kohut

Director of Sustainable Design National Community Renaissance

“I've been using Wrightsoft since the late 80’s. Public Service Company in Oklahoma's "Good Cents" program required an ACCA Manual J load calculation and ACCA Manual D duct design to qualify as a "Good Cents" structure. As long as the information is entered correctly, Wrightsoft takes all of the guesswork out of the equation. It has given me peace of mind and keeps our quality of installation above the rest. I can't imagine doing an install without it, it's as important to us as the rest of the tools on our trucks.”

Steve Paxton

from Air-Dynamics

“The Wrightsoft experience has been great from the beginning to end.  Their support staff are patient and professional.  Proper equipment sizing is imperative regarding our customers comfort. We have been able to provide our customers with accurate professional data to backup our proposals awarding us multiple projects over our competitors. Well worth the investment of time and money.”

Tom Tumminelli

from Brothers Plumbing, Air & Electric

"If you're a Wrightsoft user and have been wanting to go to the next level, Right-CAD is it. I'm not conversant with CAD but I was up and running with 3D almost immediately, importing some of my more complex duct designs already created with RSU, and amazed at seeing what I could only imagine before. The 3rd dimension takes the guesswork out of interstitial duct runs, navigating dropped ceiling areas, dropped girders, etc. Learning curve is simplified by utilizing the familiar tools & tabs already within RSU, and yet with lots of bells and whistles for rainy day exploration and further fine tuning of design presentation. I see this as the future of professional & field ready HVAC design, without the cost and lengthy learning curve of Revit."

Rick Blair

Certified Home Energy Rater & Thermographer Performance Point, LLC

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