- Alias
- Water Service Pipe Sizing Form
- Form ref
- City of Markham Building By-law
- Applies to
- designer
- Work types
- new construction · addition
The City of Markham's water service pipe sizing form for infill residential projects — a new custom home, an addition increasing gross floor area by more than 25%, or new construction replacing more than 50% of an existing building by demolition. It records existing and new drains, sewers and water services, calculates the hydraulic load in fixture units for each plumbing fixture from Table 7.6.3.2.A of Division B, and has the designer size the water service pipe under Division B, 7.6.3.1 of the Ontario Building Code, alongside Schedule 1.
What it covers
- A Project Information
- B Specify Infill Residential Project Type
- C Building Drains / Sewers
- D Water Service Pipe Sizing - Hydraulic Load (Fixture Unit) Calculation
- E Design of Water Service Pipe Size and Capacity of Potable Water System
- F Declaration of Designer
Check this against the municipality before you rely on it. DocHub collects what a municipality published; it cannot tell you what is in force today. A newer version may exist, may be titled differently, or may not be posted publicly at all.
- Publisher
- City of Markham
- Category
- Forms and schedules · plumbing
- Published under
- Building Permit Forms — the municipality's own heading
- Instruments
- Ontario Building Code, Division B, 7.6.3.1
- Signatories
- professional engineer · architect · designer
- Required for
- Infill residential projects — new custom homes, additions increasing gross floor area by more than 25%, or new construction replacing more than 50% of an existing building
- Document date
- March 2026
- Building types
- residential
- Tags
formplumbinginfill-residentialwater-service