Plumbing Engineering · Risers

Plumbing Riser Design

Plumbing riser diagrams are required by most building departments for multi-story commercial and multifamily buildings — showing the vertical distribution of water supply, sanitary drainage, venting, and gas piping floor by floor. Apex Grid produces plumbing riser designs for multi-story buildings as part of a complete plumbing permit package.

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What This Engineering Scope Covers

Domestic water supply riser design — hot and cold
Sanitary drainage and waste riser design
Vent riser design and termination
Gas piping riser design
Pipe sizing for vertical distribution — pressure drop analysis
Chase and shaft coordination for riser routing
Floor penetration design for risers
Isolation valve locations on risers
Riser diagram production for permit submittal
Multi-story hotel, residential, and commercial riser design

What You Get

Plumbing riser diagrams for all systems
Pipe sizing calculations for risers
PE-stamped plumbing permit drawings
Riser coordination with architectural shaft design
Plumbing permit package including riser diagrams

How Apex Grid Handles This

Apex Grid Engineering is licensed in 49 states — every U.S. state except Alaska. Engineering stamping and licensure are confirmed for each project jurisdiction. We provide plumbing riser design as a standalone service or coordinated with structural, MEP, civil, and geotechnical engineering under one contract.

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Frequently Asked Questions

What does plumbing Riser Design cover?

This scope covers domestic water supply riser design — hot and cold, sanitary drainage and waste riser design, vent riser design and termination, and gas piping riser design.

What deliverables come with plumbing Riser Design?

Deliverables include plumbing riser diagrams for all systems, pipe sizing calculations for risers, PE-stamped plumbing permit drawings, riser coordination with architectural shaft design, and plumbing permit package including riser diagrams.

Can this service stand alone?

Plumbing Riser Design is provided as a standalone service or coordinated with structural, MEP, civil, and geotechnical engineering under one contract.

Is Apex Grid licensed for my project's jurisdiction?

Apex Grid Engineering is licensed in 49 states — every U.S. state except Alaska. Engineering stamping and licensure are confirmed for each project jurisdiction.

More Plumbing Engineering Services

Gas Piping Engineering

Domestic Water System Engineering

Fire Protection Engineering Coordination

Commercial Plumbing Engineering

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Reviewed and sealed by licensed PEs. “Solid engineering and clear communication from start to finish.” — Jason Mitchell, Principal Architect

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