
HVAC Duct Shop Drawings
Shop drawing
A shop drawing is a drawing or set of drawings produced by the contractor, supplier, manufacturer, subcontractor, or fabricator. Shop drawings are typically required for prefabricated components. Examples of these include: elevators, structural steel, trusses, pre-cast, windows, appliances, cabinets, air handling units, and millwork.
Full Answer
What are HVAC duct shop drawings?
An HVAC Duct Shop Drawings provided to a Mechanical Contractor or Fabricator contain detailed information on how the duct has to be routed, along with the location of placement of Duct Accessories like Duct Fire Dampers, Volume Control Dampers, VAV box etc. The drawing also comprises of the location of equipment’s such as AHU, FCU’s, VAV Box etc.
What are the types of shop drawings?
Structural shop drawings include (precast shop drawings, rebar shop drawings, steel fabrication shop drawings, coordinated structural shop drawings, etc.) MEP and HVAC shop drawings, including ducting and piping layouts, are useful for ensuring coordination and clash resolution prior to on-site construction.
What are HVAC mechanical drawings used for?
Just like the other trades, the mechanical drawings have a specific purpose to their layout, so as to communicate the requirements of the project. Typical drawings found in the HVAC Mechanical set of drawings could include some or all of the following;
Why shop drawings are important for construction projects?
Shop drawings have characteristics that make them essential at all important stages of a construction project, including all participants. Architectural, structural, and MEP shop drawings are the three important trades essential for any construction project. Shop drawing service offering for all three disciplines of building construction projects.

What are shop drawings HVAC?
Drawings for an HVAC system are the detailed plan of Ventilation of building, the movement of indoor air and the transmission of thermal distribution throughout the building. Understanding a drawing plan supports for communication and plans.
What does shop drawing mean?
A shop drawing is a drawing or set of drawings produced by the contractor, supplier, manufacturer, subcontractor, consultants, or fabricator. Shop drawings are typically required for prefabricated components.
What do shop drawings show?
The shop drawing is the manufacturer's or the contractor's drawn version of information shown in the construction documents. The shop drawing normally shows more detail than the construction documents.
What is machine shop drawing?
Shop drawings are typically a set of drawings or set of drawings required for prefabricated components. They are usually produced for the fabricator, manufacturer, contractor or supplier.
What is shop drawing MEP?
MEP shop drawings are a combination of architectural, structural and civil shop drawings that are drafted to facilitate a construction project. They make the fabrication, manufacturing, installation, assembly, and maintenance of a building's mechanical, electrical, and sanitation components easier.
Why is shop drawing important?
Shop drawings enable us to get an accurate design model, optimizing construction schedule, efficient cost estimation & quantity take-offs, improve production quality and allow efficient handover. Thus, providing efficient collaboration and communication across cross -functional activities.
How do you read a shop drawing?
How to Read Shop DrawingsExamine the plate size and fitting. Plate sizes are indicated by a specific numerical dimension and an equal sign. ... Notice the slope. The slope is located near the middle of the drawing on the left hand side. ... Look at the height of the object. ... Figure out alphabetical abbreviations.
How are shop drawings made?
A Shop Drawing is prepared by a contractor, sub-contractor, manufacturer or a supplier for the manufacturing, assembling and installation of prefabricated components in a construction site. Shop drawings are more detailed than a design drawing in the view to execute them on site.
Who are shop drawings produced by?
Shop drawings are construction drawings provided by the general contractor which are utilized to facilitate compliance with the plans and specifications.
What is the difference between shop drawings and working drawings?
In contrast to design and construction drawings, shop drawings provide more extensive and precise details, and they reflect the next step in the prefabrication process after the design drawings and specifications have been drafted. Shop drawings can be considered as an elaboration of construction drawings.
What is the difference between a shop drawing and a submittal?
The shop drawing review and approval process formalizes the method for a contractor to demonstrate how it will accomplish these design obligations. The submittal process also allows the design professional to review the design and make sure they comply with the design intent.
What is the difference between shop drawings and fabrication drawings?
Shop drawings (also known as fabrication drawings) are detailed plans that translate design intent. They provide fabricators with the information necessary to manufacture, fabricate, assemble and install all the components of a structure.
What is the difference between construction drawing and shop drawing?
However, there is a thin line difference between the construction drawings and shop drawings. Where the shop drawings depict the original design of the building, the construction drawings are modified from time to time. They include the revisions a building has undergone whilst the construction process is underway.
What is the difference between a shop drawing and a submittal?
The shop drawing review and approval process formalizes the method for a contractor to demonstrate how it will accomplish these design obligations. The submittal process also allows the design professional to review the design and make sure they comply with the design intent.
How much should I charge for shop drawings?
Specifics aside, Millwork Shop Drawings should average out to roughly 5% of the Project Cost. That would mean a $30,000 Commercial Millwork Project should cost approximately $1,500 to produce Shop Drawings.
How do you read a shop drawing?
How to Read Shop DrawingsExamine the plate size and fitting. Plate sizes are indicated by a specific numerical dimension and an equal sign. ... Notice the slope. The slope is located near the middle of the drawing on the left hand side. ... Look at the height of the object. ... Figure out alphabetical abbreviations.
1. HVAC Layout Drawing
The layout drawing shows the HVAC equipment layout. It is the primary type of HVAC drawing that you’ll be reading a lot. Typically, a high-rise building project consists of around 30 pages of layout drawings with each page representing one floor.
2. HVAC Schematic Drawing
The schematic drawing is the second most important type of HVAC drawing. Usually, a medium-scaled project has a few schematic drawings with each drawing representing one HVAC system.
3. Installation Details for HVAC
Installation details are drawings that show the installation method and specification. They are usually issued by design engineers or consultants. Nonetheless, they are based on international standards such as SMACNA (for ducts).
4. Single Line Diagram for HVAC Panels
Control panels are essential for the HVAC system and hence, single line diagrams are inevitable. Single line diagrams show the wiring details of the control panels. Specifications such as cable sizes and breaker sizes are written in single line diagrams.
Other Drawings Relevant to HVAC
Opening Drawing – Used to show wall and slab opening details for pipes and ducts penetration.
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Generate Clash Free HVAC Shop Drawings from BIM
An HVAC Duct Shop Drawings provided to a Mechanical Contractor or Fabricator contain detailed information on how the duct has to be routed, along with the location of placement of Duct Accessories like Duct Fire Dampers, Volume Control Dampers, VAV box etc. The drawing also comprises of the location of equipment’s such as AHU, FCU’s, VAV Box etc.
What We Do
With our experienced team and proven track record, we have supported Mechanical Contractors and Fabricators in delivering the best quality HVAC Duct Shop Drawings within their budget and project timeline.
Our HVAC Duct Shop Drawings shall follow the below General Requirements
We use Autodesk Revit platform for 3d HVAC modeling and Autodesk Navsiworks for clash detection and BIM coordination. Our HVAC shop drawings shall follow below general requirements.
What is HVAC control drawing?
HVAC Controls Drawing. Most commercial HVAC systems provide some aspect of controls automation, except for the most basic system that may just have stand-alone thermostats. Control system vary in their sophistication based on the owners need to monitor the system and the size of the HVAC system.
Why are HVAC ductwork and HVAC piping shown on separate drawings?
You might find that the HVAC Sheet Metal and the HVAC Piping are shown on separate drawings to allow for clarity and avoid having drawings that are congested and hard to read.
What is HVAC equipment?
Here you will find the HVAC equipment such as Air Conditioners, Air Handlers, Fan Coil Units, Fans, Chillers, Cooling Towers, Pumps, Air Distribution, Expansion Tanks, Boilers, VFD’s (Variable Frequency Drives), Condensers and various other components of the HVAC system.
What does a hash mark on a HVAC system mean?
Typical anything with a hash mark through it will indicate an item to be removed, whether it’s a piece of equipment or a section of ductwork.
Why do you compare addendums to original drawings?
You would need to compare this addendum set to the original set of drawings to identify any changes that were made to the drawings. If you didn’t begin your takeoff or estimate on the previous set, then starting with this set of drawings would include the latest changes.
What can you find in structural drawings?
Looking at the structural drawings will sometimes provide you with information on supports for the mechanical equipment, ducts or piping. You can also determine how big the beams are and if there is enough room to possibly convert some of the more expensive rectangular ductwork into round duct.
Do you need to check plumbing drawings?
Plumbing Drawings. You may need to check the plumbing drawings to confirm if certain scope has been shown on those drawings. Engineers will often put the condensate piping from air conditioners on the plumbing drawings, or the gas piping for a Gas/Electric HVAC unit. Plumbing Drawings.
What are the Shop Drawings?
Talking about Shop Drawings, it is a kind of drawing process that collects every bit of required information in one place that turns out to be useful during the construction time. In comparison with the general document, Shop Drawings provide more and profound details of the project. Therefore, it is quite essential when it comes to explaining the purpose of installing an item for the production crew.
Why is it important to have a shop drawing?
Therefore, it is quite essential when it comes to explaining the purpose of installing an item for the production crew.
What is HVAC CAD?
Generally required by commercial, industrial, residential, institutional, and other sectors, HVAC CAD Drafting is a process of designing and incorporating small details by experts to make the entire process seamless for erectors, contractors, as well as fabricators.
What is shop drawing?
In general, shop drawings are a set of drawings required for prefabricated components that include dimensions, manufacturing standards, and fabrication details.
Why are shop drawings important in construction?
What exactly are shop drawings, and why are they important in construction? Construction projects are becoming more rigid in terms of economy and risk management. Project investments are suffering, uncertainties are always increasing, and there are often time, money, and manpower issues. This article will discuss how the construction industry uses shop drawing and steel shop drawing to manage its relationships with fabricators and subcontractors.
Why are Shop Drawings Important?
Precise, accurate structural steel fabrication drawings are required and can help with:
Why are shop drawings required?
Some details may be too complicated to engineer, and shop drawings may be required to ensure that all of the information is accurate.
What commands do you use to make a shop drawing?
It is much easier to use commands such as Array, Offset, Trim, Extend, MultiLine, Block, and so on to make necessary changes and corrections to drawings in a more exact and faster manner during their development phase. Besides, from menu commands, it is crucial to note that typical keyboard commands, which we are all familiar with when using MS Office and similar software, can be really useful while creating shop drawings!
Who is responsible for the shop drawings?
Their precision and accuracy are essential to an engineering project’s success or failure. The contractor is responsible for their production and should review the shop drawings before submitting them to the architect/engineer.
Do construction drawings need dimension confirmation?
Suggestions for where dimension confirmation is needed. Construction drawings may present the dimensions of the site or facility in a slightly different manner and may change from the original site dimensions. As a result, it is essential that fabricated components are ready for installation and therefore do not require any further alterations.
What is shop drawings?
Most shop drawings consist of an overlap of electrical and mechanical components. With the help of detailed electrical shop drawings, contractors assess the exact layout of electrical units to install mechanical units smoothly.
What is a plumbing shop drawing?
As the name suggests, plumbing shop drawings represent the plumbing elements inside a building, such as piping systems, drainage, garbage disposals, and waste carriers.
Why do MEP drawings need to be repeated?
Additionally, if the project requires using the same component multiple times, then the same MEP shop drawings can be referred to repeatedly for instructions on manufacturing processes.
What is HVAC shop?
The HVAC (Heating, Ventilation and Air Conditioning) shop drawings are part of the mechanical shop drawings. They represent enhanced specifications for installing and fabricating ducts, custom piping connections, and air-handling units.
What is a mechanical shop drawing?
The mechanical shop drawings represent transportation systems such as lifts and escalators, infrastructural elements, and at times industrial machine components.
What is the best shop drawing service for MEP?
If you think that your project needs shop drawings for MEP, then we recommend hiring a reliable shop drawing services provider like BluEntCAD.
Can a contractor go back to original drawing sets?
Even in cases where a component is delivered in damaged condition or goes missing, your contractor can go back to the original drawing sets and order a substitute.
