Finally, add the piping elements, such as elbows, tees, and valves. These should be drawn perpendicular to the horizontal lines.ĥ. Next, draw the vertical lines of the piping layout. For example, if you’re using a 30 degree angle, you would draw the horizontal lines at 30 degrees from the vertical.Ĥ. To draw the isometric piping, start by drawing the horizontal lines of the piping layout at the chosen isometric angle. 30 degrees is a common angle for isometric drawings.ģ. Next, decide on the isometric angle you want to use. This will serve as a guide for drawing the isometric piping.Ģ. First, draw a basic piping layout in two dimensions. Here are some tips on how to draw isometric piping:ġ. If you’re looking to add a touch of dimensionality and realism to your piping drawings, then isometric drawing is the way to go! Isometric piping is a type of drawing that shows the pipes in three dimensions, allowing for a more accurate representation of the piping system.