Collaborate forum
cancel
Showing results for 
Search instead for 
Did you mean: 

Percentages

mest79
Newcomer
Hi!
How can I calculate the percentages of materials of a floor?

For example: for each m2 of flooring I have 20% tiles white, 30% tiles black and 50% parquet.

With "zone" I can calculate 1 percent with the parameter "occupancy" ... but the other 2?

Thanks!
Michele
Architect
AC22 (3006) - i7-6820HQ, 16Gb, AMD FirePRO W5130, WIN10
15 REPLIES 15

Karl Ottenstein
Moderator
Hello Michele,

I've moved your post to the Schedules forum where it belongs.

I wish I could tell you that what you want is easy or at least 'user friendly', but it is a little awkward using the older "List" scheme mechanism of ArchiCAD.

The interactive schedules are only capable of producing a single line of information for any one element in your model. So, you can get one line listing your floor area, but are not able to get multiple lines/results for the percentages of each tile.

The List Schemes, however, can calculate anything, but are not very "friendly".

We associate what is called a Property Object with your floor slab and tell the property object to compute a quantity of tiles according to your formula as a percentage of the total floor area. I'll show you the steps, but it will take several posts as I can only post one screenshot per post....

I'm working with the US library in feet/inches - vs your metric - but the differences should be obvious...

Step 1: create a new property object: File > Libraries and Objects > New Object

Change the subtype of the new object to Properties as shown here.
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

Karl Ottenstein
Moderator
Step 2:

Click on Components, as shown, and then click the New button to create three lines as shown where I've picked 009 "Finishes" from the US default database - yours could be different, but it doesn't really matter...

I made up the codes 001, 002, 003 - could be anything

I described the tiles as you did and gave the percentages as fractions of 100 and the last column is key: I said I wanted the quantity proportional to the total surface area of the top of slab.

Save with a name in your embedded library. I called mine Tile Quantities here.
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

Karl Ottenstein
Moderator
Step 3:

Open the Settings for your slab and go to the Listing and Labeling panel.

Check the box for "Individually" to indicate that we want to specifically link a Property Object to this slab.

Click the Choose... button and find your Tile Quantities (or whatever you named it) object, select it and OK out of the settings. The info in that object will now be used to compute the takeoff quantities for this slab.
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

Karl Ottenstein
Moderator
Step 4: Generate your report

You can use the Basic Component List report to show your tile quantities now.

The attached screenshot shows the location of the report in the menus. It is also in the Navigator, where you can just double-click it.
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

Karl Ottenstein
Moderator
Finally, this is what the report might look like for some arbitrary slab. The total areas add up to the area of the slab in my case as they should.

Do note an essential thing about this process: the relationship between reality or the intended design and the results that you see is 100% on you. ArchiCAD cannot verify that there is any meaning to the results.

For example, I attached this tile object to a composite slab that supposedly has carpet as the top/finish skin if you look at the name of the composite in the slab settings screenshot. Oops. Tile is calculated anyway because that's what the Property Object is doing.

The Property Object could have reported more tile than the total surface area if I did not make sure that my percentages added up to 1.00 That is, I could have accidentally said to report 50% white, 50% black and 50% parquet resulting in 50% more tiles than I can use. All error checking is in the user's lap. 😉

Karl
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

mest79
Newcomer
Wonderful!

How can I calculate the number of pieces?

For example: in 1,00 m2 I have 55 pieces. These pieces are divided: 20% of white tiles, 30% of black tiles and 50% of parquet.

Thanks Karl!

Michele
Architect
AC22 (3006) - i7-6820HQ, 16Gb, AMD FirePRO W5130, WIN10

Karl Ottenstein
Moderator
To get pieces, you would have to generate the components from a Property script (GDL code) in the property object rather than as a simple tabular setup as I showed.

The property script would compute the 20% of Surface A, then divide that by the area per tile+grout on 2 sides to get an approximation for the number of actual tiles. Because tiles would likely need to be cut and there would be waste, you would then multiple by some factor to estimate the number of tiles required, such as 110% of the result you just obtained.

See the GDL Reference Guide section on Non-Geometric Scripts for a description of the COMPONENT command and an example. (Page 235 in the US AC 19 version of the manual.)
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

Aaron Bourgoin
Advocate
Karl!
Think Like a Spec Writer
AC23-3003 USA / AC24-4018 USA
Rhino 7 Mac
OSX 10.14.6 & 11.3.1

mest79
Newcomer
Thank you very much Karl!!!
I have what I wanted...I'm just trying to improve its graphics.
Architect
AC22 (3006) - i7-6820HQ, 16Gb, AMD FirePRO W5130, WIN10

Karl Ottenstein
Moderator
You're welcome - glad that helped! 🙂

I showed the text output for the list scheme. There is a graphic list scheme that has control over fonts etc but honestly I have never figured out how to get that to display anything in the way that I wanted.

Another option for nicer output (although no longer dynamically generated directly into your layouts) is that you can save this list - or create a Publisher set for it and other lists - as tab-delimited text that will import into Excel (etc) and either be reformatted there - or linked further to another, formatted, Excel (etc) sheet or database report. Save the formatted PDF from there and place that on your layouts.
One of the forum moderators   •   AC 25 USA and earlier   •   MacOS 11.6.1, iMac Pro

mest79
Newcomer
If you have not been able to you that you're a expert...I give up!
thanks Karl!
Architect
AC22 (3006) - i7-6820HQ, 16Gb, AMD FirePRO W5130, WIN10

mest79
Newcomer
Hi Karl! with Archicad 19 in the slab "Listing and Labeling panel" is gone. How can I get the same result?

Thanks!

Karl wrote:
Step 3:

Open the Settings for your slab and go to the Listing and Labeling panel.

Check the box for "Individually" to indicate that we want to specifically link a Property Object to this slab.

Click the Choose... button and find your Tile Quantities (or whatever you named it) object, select it and OK out of the settings. The info in that object will now be used to compute the takeoff quantities for this slab.
Architect
AC22 (3006) - i7-6820HQ, 16Gb, AMD FirePRO W5130, WIN10

Barry Kelly
Moderator
It is still there but you may need to go into the Work Environment > Tool Schemes > Tool Settings Dialogue Boxes.
It may be turned off by default so you can turn it on there.
You can also turn in on for the Info Box.

Barry.

One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10

Roopa A
Participant
Hi,
How do I calculate number of tiles for wall and slab for estimation purpose.
Thank you,
Roopa A

Laszlo Nagy
Community Admin
Community Admin
Roopa A,

Go to the Property Manager, there are actually a group of Properties called "Number of Floor Tiles". Using these you can calculate Number of tiles for elements like Walls and Slabs. These Properties can be displayed in Labels and Schedules.
....................................................................................................
Laszlo Nagy, Lead Moderator, Community Admin
Get Archicad Tips at https://twitter.com/laszlonagy
AMD Ryzen 1700X CPU, 48 GB RAM, NVidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), WIN10 PRO ENG, AC20-AC25
Loving Archicad since 1995

Still looking?

Browse more topics

Back to forum

See latest solutions

Accepted solutions

Start a new discussion!