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Metric
The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm)
For Inch versions, directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.
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Oval Cutting Templates for Pipe at Angle Through Sheeting (Roof)

For end oval shape and dimensions of a pipe cut at angle (not the hole in sheet), enter 0 for the Sheet Thickness (see diagrams)

Pipe Diameter
Pipe Angle
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Enter 0 to find pipe end shape (not hole in sheet)
Sheet Thick
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Base of triangle to set pipe at correct angle - See Triangle Diagram Below
Set Base

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Oval is lengthened for square cut holes. (See cross section diagram)

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For larger templates that won't fit on your paper size, print 1/4 of the template, reverse and flip to mark out complete oval.
Or print 4 copies, cut and tape together.
You can also 'Poster Print' to multiple smaller pages and assemble to form full template image.

incs
80° to
Print template at 100% Printer Scale.

Cut and use template to mark and cut sheet to fit pipe at

Select Angle Increment and hit Full Set to generate and print a full set of oval templates for currently entered pipe diameter.

To find pipe end shape (not hole in sheet), enter 0 for Sheet Thick.

Diameter Angle

Pipe tube at angle through sheeting - hole cutting full scale printable template



Pipe tube at angle through sheeting section diagram 1
Pipe tube at angle through sheeting section diagram 2 Pipe tube through sheeting angle offset diagram

For a vertical (plumb) pipe through a pitched roof, the corresponding roof pitch = or
Enter Set Base measurement and use dimensions from the diagram at right to set pipe at correct angle through roof or sheeting.
See also How to Draw an Oval for 2 methods to mark out an oval, including very large ovals.




DON'T BREATH THE DUST If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - theres dust in the spray mist too!

How should we spell it?



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Create PDF to print diagrams on this page. Help Printing Help (new window)

Copy all diagrams on this page to bottom of page - Make multiple copies to Print or Compare.

View page on Phone via QR Code (Not current calculation result)

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Zoom out to fit large full scale template images on screen - or to adjust scale to match ruler held against screen
Zoom 100%

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Zoom to adjust screen scale to actual size (measure full scale diagram with ruler) and hit 'Set' to set scale on other pages.



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Click Slider to select then use keyboard cursor keys to fine tune.
Keyboard
Fine tune Sliders
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Create and Print Full Scale PDFs with diagrams on this page (templates)

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Copy all diagrams on this page to bottom of page - Make multiple copies to Print or Compare Results



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Inch or Metric? 👈
The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm)
Directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.


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All calculators on this site are geometric only.
Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.


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