Free Help with Plumbing Isometric Drawings and Plumbing Riser Diagram

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Piping Isometric Drawing Reference Guide

I have always believed that one of the most difficult talents to master in the plumbing and mechanical trade is being able to provide accurate plumbing isometric drawings. Let?s define what an Isometric Drawing is first before going into more detail. An Isometric Drawing is drawing details representing pipes, fittings, and fixtures at a 45ø angle, in plain terms its the plumbing drawing scheme. The goal is to represent three-dimensional designs on two-dimensional drawings.

Having a well-done set of isometric drawings is like having a well-done set of instructions to build a swing set. When a good draftsmen, estimator or project manager is skilled enough to be able to provide the foreman or project superintendent with plumbing isometric drawings, the men in the field can do what they get paid to do. That?s to put in pipe and fittings.

While I was going through my plumbing stuff, I happened to come across one of the best references I have ever had and used. They are the isometric plumbing drawings for common residential building floor layouts, i.e., back-to-back bathrooms, kitchens, powder rooms in just about every configuration you can think of.

Wait, there?s more. Along with each drawing, there is a complete and accurate pipe and fitting takeoff for waste, vent, and water piping. Please contact me for a PVF takeoff for the waste and vent isometric drawings. There would be too many questions about pipe sizing and materials.

Here is how I will present this. Each Isometric drawing will be linked to a printable and sharable PDF. I will list the pipe and fitting take off after each drawing as well as an explanation of each fixture configuration. I can?t tell you how many times I?ve gone to these drawings for estimates, layout help, and fitting configurations. Therefore, I hope it helps you too.

Because these drawings are so well done, they can also be used to help you do your own isometric drawings in any configuration you see fit. I?ve always found these drawings put me in the right place spatially to envision how and where piping should go.

This is a plumbing isometric of the water piping for a condominium or apartment building. There are two bathrooms in the same unit or in separate units piped back to back. The water supply risers are coming in on one end of the bathrooms as you can see in the plumbing riser diagram.

Plumbing Isometric Drawings | Back to Back Bathtubs | Water Closets | Lavatories

This plumbing isometric represents a battery of plumbing fixtures with just one bathtub, water closet, and lavatory. This would be used most commonly in a small apartment building where there is only one bathroom per apartment. It is possible there are two sets of water risers serving bathrooms. However, it can get expensive. Therefore, the architect/engineer usually likes to reconfigure a building to make use of as few risers as possible.

Plumbing Isometric Drawings | Single Bathtub | Water Closet | Lavatory

List of Plumbing Isometric Drawings

This isometric represents a battery of plumbing fixtures with a little twist. In order to save pipe chase space, an architect may put the kitchen or utility room behind the bathroom. This way, you can use the water piping to pipe in a kitchen or utility sink.

Plumbing Drawing Final Word

Single Bathtub | Water Closet | Lavatory | Utility Sink

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