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Muhammad Ehsan ul Haque Ehsan
Confused by Revit Category vs Family vs Type vs Instance?
In this tutorial I break down the Revit Element Hierarchy in simple terms. Master these 4 levels and you’ll stop making modeling mistakes, speed up your workflow, and control elements like a BIM Coordinator.
The 4 Levels of Revit Hierarchy: Category - The broadest classification. Ex: Walls, Floors, Doors, Roofs. Controls visibility + scheduling Family - Group of elements with similar use + parameters. Ex: “Door” family, “M_Concrete_Rectangular_Beam” family Type - Specific variation within a family. Ex: 900x2100mm door vs 1200x2100mm door. Same family, different Type Instance - The actual element placed in your project. Each wall, door, or column you draw = 1 Instance Why this matters in Revit 2026:
Understanding this hierarchy = faster editing, cleaner schedules, and fewer errors in BIM coordination. Change Type properties once = all Instances update. That’s parametric BIM.
Timestamps:
0:00 What is Revit Element Hierarchy
0:25 Level 1: Category explained with examples
1:10 Level 2: Family vs System Family vs Loadable Family
2:05 Level 3: Type properties - why door sizes change here
3:00 Level 4: Instance properties - Mark, Comments, Location
3:45 Common mistakes: Editing Type vs Instance
4:30 Quick recap + BIM workflow tip
Which level confuses you most? Category, Family, Type, or Instance? 👇Keywords for SEO
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Transcript
00:22In the name of Allah, the Most Gracious, the Most Merciful.
00:24Peace be upon you, may the mercy and blessings of Allah be upon you.
00:26I hope you all will be happy to buy.
00:28And my many prayers for all of you.
00:32Greetings to everyone
00:35Okay, so what we're going to talk about today is very important.
00:39It is important in that the elements that are
00:43How do we categorize the inside of a rabbit?
00:46How is our layout done?
00:47Tech is here, we have to see how their eye-tracking is done.
00:52And how do they categorize or classify them?
00:56If we look at the example, we have the category on top.
01:02Then we have family.
01:03Then after that we have the type
01:06Then after that we have Stance.
01:08So these bicycles are classified into four classes.
01:12There are so many elements inside the robot.
01:14To see them or to kill them
01:18What is used?
01:20If you look at the category, what is the category?
01:23This is the highest level of organization
01:25Grouping elements with similar functions
01:28and behavior example include
01:30Or what are your categories?
01:32Walls are your categories.
01:33floors are your categories
01:35door are your categories
01:36windows are your categories
01:38columns etc. All these categories
01:41Obviously categories are predefined and cannot be created by user
01:45No user can create this.
01:48Because it's a reboot.
01:50It has its own terminology.
01:52And if the general saw this
01:54So this terminology is used in other software.
01:56It is also used inside.
01:58As long as there are walls, there will be walls.
02:00If there is a floor, then floors will remain.
02:01If there are doors, there will be doors.
02:03If there are windows, there will be windows.
02:05If there are columns, then columns will remain.
02:07Okay, so this is the highest level.
02:10Whatever is, there is a reason for it.
02:14The category comes on the top.
02:16After that comes your family.
02:20family is a group of elements
02:22within a category
02:23That is, whatever is within any category
02:25There are groups of elements.
02:27that share a common set of parameters
02:30geometrical behavior and similar
02:32happen of example within the doors
02:34categories you may have
02:36family means door
02:38Category you want to see OK
02:40So inside you will see you have
02:42Single flush door is double panel door
02:44Sliding doors are okay, so something like this.
02:47If you have a glass door of various types,
02:51That glass door is coming towards you.
02:53Families are highly customizable and can be loaded from external files
02:58Okay, these are obviously customizable changes.
03:01That you can change them at any time.
03:03Take it to any family editor.
03:06You can change them by taking them to the payment family editor.
03:09You can modify them and use them for whatever project you have.
03:13You can do it, okay, then it will be your families, okay.
03:17We describe the family again as a group of elements.
03:21Here, a category is a group of elements within a category, right?
03:25In which you have what you have, for example this is what you have doors
03:28If you look in the category, you have a single flush door.
03:32A family has a double family door, that is a family, if it has a sliding door, then that is
03:37There is a family, okay, so you have these families next.
03:41Let's go a little further and see what families are.
03:44Let's see what type we have, what type is something?
03:48type is a specific variation with a family within any family
03:53When specific changes, i.e. specific variations, occur, then family
03:58That is, it defines the particle size of the material, that is, the material in it
04:02You can change any family within you if there is one.
04:06Install a door, which one do you have, a single door, a double door?
04:12Is there a door, is it a shutter or a tall door? Is it okay if you have one?
04:18There are types within it, some of them are made of doors, some of them are made of wood.
04:23Is there anyone who has something of iron attached to it?
04:27What are the sizes and what is the type of material? Okay, so in this way, you can type
04:32They are defining that it is basically the door of it.
04:37What will be the type then comes instance what is instance an instance is an
04:41individual element placed in the project when you place a door in a wall you are
04:46creating an instance of specific door type each instance has its own unique id and
04:50kept an instance parameter that overrides the type parameter allowing for individual
04:55Variation within creating new type for example you may change the swing direction
04:59Nafi means your fas is suppose to have five doors, okay?
05:03D1 is D2 is DT, so their swing is different.
05:07You can change it, it's okay. You can change their changes property.
05:11Someone is standing on the left side, someone is standing on the right side, okay, so this
05:15They have extensions and the extensions that they have are basically everyone who
05:20The door you provide is visible to any door, okay?
05:26If it is D1, then that person is on the left side of all the doors of D1.
05:30They are standing on the right side of D2 and on the right side, okay?
05:33You have instances, okay, we call them instances, okay, this is it.
05:38All things for any company or any organization.
05:42This hierarchical structure is crucial for organization.
05:47It is essential for any organization to provide a logical and systematic way.
05:52to classify and locate element within complex model i.e. any one of your
05:58A systematic or logical method is used within the model.
06:03Are you any of the elements that have efficiency to classify then?
06:08Efficiency comes, changes made at the family or type level will propagate to all
06:13instance of that family or type saving significant time in design revision is fine if assume
06:20Are you getting revisions or are you getting changes?
06:23They increase efficiency a lot because you already have
06:27All the things that are organized according to your project are classified.
06:32are and they are all made systematically then if
06:36Talking about data management, okay, so in data management, when they have your
06:40If you are feeding data, if you are occulating data, then the big way is
06:44Cars are systematically coming to you with all the data you have.
06:50Well, trying to understand it in a little bit of form.
06:53This ensures that your category is at the top of the Revit element hierarchy.
06:58After that you got family, then you got type and
07:01After that, you have an instance in your category.
07:06wall categories are ok, floor categories are ok, see below floors are ok
07:12There are walls here, okay, and here you also have floors, okay, this.
07:16Look, the floor is coming here. You have it right. And if it's here,
07:21Look, you're also getting doors inside it, okay, so this is it.
07:24It tells you all your categories, okay, this category is yours.
07:28What are the categories and remember that within Revit there are categories.
07:32You can't change it. Okay, if it's a wall, it's a wall. If it's a floor, it's a floor.
07:36It's a door, it's a door, okay, he has Revit Elements, he has them.
07:43How are they classified? How are they viewed?
07:47Okay, if we look, there are several kinds of elements each represents
07:50something fundamental to your project revit elements top revit elements
07:54After that, you are looking at the model element, so inside it you have
07:57The floor is coming, the walls are coming, the roof is coming.
08:01ceiling steered These are all your model elements, then components
08:05If you look at the element, it appears that doors, windows, furniture, or any component models are coming up.
08:11What follows is the same classification that occurs only in geometrical terms.
08:16You are not defined within the object that you have, but rather an annotation.
08:19What would define what they have within what is coming to you?
08:24It is okay in which you have what consequently view your
08:29Okay, after that, label grids etc. are coming.
08:32You are coming to view elements, that is, the element you are looking for.
08:36Coming up, you have levels and columns in the item element, okay, that's it.
08:40Never again five
08:52Detail lines you have field regions you have masking regions
08:57You are getting deductions, tax notices.
09:00How do all things come to you after that?
09:05Let's go a little further and see the categories that are available. When the category is updated,
09:09If you define it within the , the rivet is so soft that when
09:13If you are betting on a lottery, you can bet on it.
09:17You are putting the dice inside the lid if you will do it.
09:21And if they are planting, they will push them into the quills.
09:24He will do some work with the suit because he knows how to take care of it.
09:32In doctoral you have lines, in tech you have poly lines.
09:39There are headaches, there are headaches, there are headaches, so what do you have, but you have them?
09:43Inside you have the options: if there is a door, then it is a complete door, if there is a wall, then
09:47It's a complete wall, so now it's the best, so it's very easy.
09:51For a rivet to categorize what it is, what kind of thing is it?
09:55I'm trying to figure out which class to put this in. Which class should I put this in?
09:59Oh, I have to keep it. Look, inside AutoCAD, we have different layers.
10:04They make it okay, we've created layers, layers are being created.
10:07We keep anything inside, now we can be a distant layer.
10:11If you built it, there must have been a wall inside it, there must have been that inside it too.
10:14But that's not how it works inside Rivet. Inside Rivet, everything happens automatically.
10:20Coming into and going out of their class.
10:24Okay, so when you open the door, you'll see your mother, brother-in-law.
10:28Doors will be walls within walls and it cannot be that
10:31Let's go inside the wall, let's go inside the walls, after that, it's up to us to see.
10:37So look, if you take the wall, it's okay, the couple is doing something.
10:41You can do it without worrying about its height then if you
10:45Take the strings, take the monos, they are on the host's wish list.
10:51You are coming even further inside the wall.
10:53The window is also coming inside the wall.
10:55Therefore, their own
10:57Every addition
10:59have their own parameters
11:04Good
11:05You see if we
11:07Let's go a little further.
11:10We have
11:10If the family's kinship
11:12Try to understand.
11:15If we take only the distances
11:17So within your reach
11:19There can be a double family.
11:20There can be a single family.
11:22An hourglass doll that chatters.
11:24That's why there is a family.
11:26So it became a conspiracy.
11:27Your concubine has passed.
11:28Your family's
11:33After that comes the next conch shell.
11:35That type comes
11:36In type it means that
11:37You have only one string attached.
11:39You have installed the standard string.
11:41A single string is attached.
11:43And after that
11:44How much is it?
11:45How much is the price?
11:46How wide is it?
11:48How much is its material?
11:50It is wide.
11:50It is delayed.
11:51What kind is it?
11:52If there is a tech like this
11:53You type it.
11:54They are defining.
11:55What is its type?
11:56What type is it?
11:59Okay, after that.
12:00Next one is yours.
12:02Which class is
12:03It belongs to the instance.
12:04In the instance, you have the meaning.
12:06Which is not how?
12:07You select the update.
12:08Tech is
12:09After that you
12:10Someone selected an update.
12:11His singing angle
12:12Changed.
12:13Changed its rotation.
12:15On its left or right side
12:16Opening
12:16How is it opening?
12:18So this is a bicycle.
12:18Stunts are performed.
12:19Of the same origin
12:20Any one update
12:22Tech is
12:22So now any one update
12:23His stance is
12:24Can you change it?
12:26Let's modify it.
12:27Can change this.
12:29Good
12:30After that
12:30If you look carefully
12:32So here I am.
12:32Made a table
12:34Tech is
12:34In which family type
12:35On-Scenes are coming.
12:36Tech is
12:37If you see this
12:38So it's a double class tour.
12:40You have that family.
12:41It has type.
12:42Fighting is going on.
12:43The sun is coming.
12:44Then comes the stunner.
12:45That is, he
12:46The distance is one zero one.
12:47So it will have its own stance.
12:49Round one zero four
12:50So it will be his own.
12:51One Zero Two
12:52One Zero Fibe will have its own
12:53Similarly, if given to the other side
12:56So you are a single vegan family.
12:58Tech is
12:59In which you have what you have
13:01Type is coming to you.
13:02How much is the width?
13:03Is stented
13:04It is delayed.
13:04Tech is
13:05How much is that?
13:06The string is
13:07It is of its instance.
13:08One Jaro One Jaro Seaman
13:09One Zero Nine
13:10One Zero Eight
13:10Tech is
13:11So not like that.
13:12You are what you are.
13:13The three things that are
13:15In which you can say this
13:17The instance that is
13:18He is calling some guy.
13:20Type which is
13:21He calls the family.
13:23And the family that is
13:24She is defining the category.
13:26Tech is
13:26So these are all concepts.
13:28They need a lot of understanding.
13:31Because
13:32When you are modifying them
13:35When you are changing them.
13:37So you know.
13:38That I am changing the type.
13:40Or I, what is the family?
13:42I am working on it.
13:48Should know.
13:48So that whatever is
13:51Things that are
13:52Categories can be made with proper straws.
13:54They can be surrendered.
13:56And what comes after that?
13:58For a project
13:59To the whole of Librairie Kandon
14:00Can be saved.
14:02So you will keep your choice.
14:03This was today's lesson.
14:05This was a big deal.
14:06In the sense that these things
14:08What is all these things?
14:09We should know.
14:10And if we knew
14:12So we treat them well.
14:13Will be able to explain well
14:16So you will keep your choice.
14:18And my videos
14:19Will definitely share with others.
14:20So that others can benefit from this
14:21Allah Hafiz
14:22Peace be upon you and the mercy of Allah.
14:24Blessings
14:50Peace be upon you, Hafiz.

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