D-Pipe is Windows software for sizing sanitary drainage pipes and vents that calculates optimal branch, stack, and sewer pipe sizes, following the ASPE Databook methodology and sizing requirements of UPC and IPC codes. It supports local code variants, prints a bill of materials with material and labor costs, and includes built‑in data for pipes, fittings, and drainage fixtures while allowing multiple editable library files. The program provides instantaneous input error checking, comprehensive concise reports, and runs on both 32‑bit and 64‑bit Windows systems.

Key Features

Code‑based sanitary sizing Optimal, compliant results.

• Sizes drainage pipes and vents per UPC and IPC requirements.
• Follows ASPE Databook methodology for calculations.

Local code flexibility Adaptable to jurisdictions.

• Provisions for sizing in accordance with local codes.
• Designer‑editable fitting and fixture data in libraries.

Bill of materials and costs From design to estimating.

• Prints BOM including material and labor costs.
• Supports multiple pipe, fitting, and fixture libraries.

Built‑in data and libraries Faster setup.

• Includes pipe, fitting, and drainage fixture data.
• Allows all pipe material types with editable entries.

Usability and reliability Efficient workflow and outputs.

• Instantaneous input error checking reduces rework.
• Comprehensive, concise reports for documentation.

Modern Windows support Easy deployment.

• Runs on 32‑bit and 64‑bit Windows systems.

Benefits

Compliant designs with fewer iterations Meet code with confidence.

• UPC/IPC and ASPE‑based sizing improves approval readiness.
• Local code provisions align outputs to AHJ expectations.

Time savings across design and estimating Streamline deliverables.

• Built‑in data and editable libraries speed modeling.
• BOM with labor/material costs reduces separate takeoff work.

Reduced errors and clearer documentation Improve QA/QC.

• Instant error checking catches issues early.
• Concise reports support reviews and submittals