Material Schedule Ticknesses

[Anonymous]

Hi all

I'm struggling here. I need to make a schedule for a wall with the materials separated with there thickness/width separated. I have already done a Material Takeoff but it gives me the overall thickness of the wall and not the separate thicknesses.

For example if a wall is 260mm thick made up of 15mm Sound Block, 15mm Sound Block, 50mm Gypframe, 100mm Thermal Layer, 50mm Gypframe, 15mm Sound Block and 15mm Sound Block.

Now when I put this into a Material Takeoff Schedule the thickness of each item is 260mm and not individualised. I have attached a screen-grab of what is coming up.

I hope someone can help. I would be very grateful.

Kindest regards

Mateen S. 

[ToanDN · Accepted solution]

[Anonymous]

ToanDN

You are Awesome!!! We love you!

Thank you!!!

[Alfredo_Medina]

Usually, you need to know how much square meters or square feet of wall is required to do, and based on that, the schedule of materials will tell you if for 1 square meter of wall, you need 1 square meter of gypsum board, or 2 square meters if there are 2 layers, or 4 square meters if there are 4 layers. Why would you need the thickness? There is no material:thickness parameter available. There is material:volume. Maybe you could use that to report the thickness? But, just the Type Mark of the wall is enough, so that the user can go and see the sheet where you have your wall types described in detail. 

[barthbradley]

deleted...answered above

[barthbradley]

deleted...sorry

[Alfredo_Medina]

I take back my suggestion (about using material:volume to calculate material thickness). And I would classify that into the category of "not because you can it means you should". And I stand by my comment above. Something fixed such as the thickness of a material in a wall assembly is already given in the wall and partition details; why would you put that value in a schedule with the risk of showing wrong information? As soon as the walls make some turns, your calculated value will start to show different results. No good. In this simple example, 4 out of 5 instances of the metal stud layer report a wrong value with this method.

[ToanDN]

Maybe this is the reason they left [Material: Thickness] out of the available parameters.  Using the calculated value approach can only work for simple forms such as an isolated floor or roof.  When we have walls with layer wrap conditions such as corners, ends, openings then the calculated value become incorrect.  So I agree that it is better be handled via legends or details.

[Anonymous]

A good method could be to convert your wall into parts

(https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2016/EN...)

and then make the takeoff of the parts. There you'll see the Thickness ("Spessore" in Italian) and Area with more precision then other methods.

[esa.vahtera]

Yes, that works fine until there are two different layers with same material...

[badmaky]

Hello, Revit has individual layer thickness parameter in material takeoff.

[Anonymous]

A simpler method is using the Wall Type Schedule app from the Autodesk Revit App Store.

[esa.vahtera]

Thanks for Your hint
I just tested the app and it is not useable for us. What we need is schedule like below;
WALLS
Type material thickness wall thickness

US1 Masonry 120 mm

AirLayer 20 mm

Installation 150 mm

Concrete 100 mm 390 mm

US2 Wood 25 mm

AirLayer 25 mm

Installation 150 mm

Concrete 100 mm 300 mm
etc...

[Anonymous]

Hello,

For the loadable and in-place families, the Material built-in area parameter calculates the total surfaces area, not what we usually need and use. We need only one surface area. So, I used the following steps and it worked. Check the attachemenets.

• We create (Layer Thickness) which is a custom instance project parameter assigned to materials.
• Then, we choose to specify that custom parameter for the materials we need to quantify. Check the link.
  https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2019/EN...
• We use it in the material take-off schedule along with the built-in material volume parameter.
• A calculated parameter (Material Surface Area) is used to divide the volume by the layer thickness.

[HNAP_Julian_JBO]

This should be in Revit by default. Vote for Revit Idea:
https://forums.autodesk.com/t5/revit-ideas/material-takeoff-should-include-material-thickness-parame...

[lundhildBT9GT]

Try Volum/Area in a calculated fields

obr