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DESIGN REPORTS · CANADA

Design Reports & Documentation for Canada

NBC 2020 structural calculation packages for Ontario, BC, and Alberta provincial authority submission — Ontario steel replacement documentation delivered — from senior engineer Mubashir.

Structural Documentation for Canadian Projects

Canadian building permit submissions require structural calculations and drawings prepared by a Professional Engineer licensed in the applicable province (P.Eng. in Ontario, APEGBC member in BC, APEGA member in Alberta). The calculations must demonstrate compliance with the National Building Code of Canada 2020 (NBC 2020) as adopted by the provincial building code, with structural member design under CSA S16-19 (steel), CSA A23.3-19 (concrete), or other applicable Canadian material standards. While the NBC 2020 framework is national, each province publishes its own building code with amendments — the Ontario Building Code (OBC), BC Building Code (BCBC), and Alberta Building Code (ABC) each modify NBC 2020 in specific ways relevant to structural documentation.

Sixteens Consultancy Services delivered structural documentation for the Ontario steel replacement project — our direct Canadian documentation reference. The calculation package was structured for Ontario provincial review, with NBC 2020 load calculations, CSA S16-19 member design checks, and documentation formatted for the Ontario P.Eng. who reviewed, stamped, and submitted to building authority. This workflow — SCS as technical consultant, Ontario P.Eng. as engineer of record — is the model for all our Canadian documentation services.

Structure of a Canadian Structural Calculation Package

SCS Canadian calculation packages are structured as follows:

  • Design basis — Project identification, provincial building code edition (OBC, BCBC, or ABC), applicable NBC 2020 Part 4 sections, structural material standards (CSA S16-19, CSA A23.3-19), importance category (NBC 2020 Table 4.1.2.1 — Normal, High, Post-Disaster), and site parameters reference.
  • Structural loads per NBC 2020 — Permanent loads (self-weight per NBC 2020 Table 4.1.5.3), specified live loads (NBC 2020 Table 4.1.5.3 for occupancy category), snow loads (NBC 2020 Section 4.1.6 using ground snow load Ss and rain load Sr from Canadian climatic data), wind loads (NBC 2020 Section 4.1.7 using reference wind pressure q in kPa for the project location), and seismic loads (NBC 2020 Section 4.1.8 using Natural Resources Canada hazard data with NBC 2020 F(T) site coefficients and IEFaSa(0.2) trigger check).
  • Load combinations — NBC 2020 Section 4.1.3.2 factored and specified load combinations, identifying governing combination for each design check. The 0.9D + 1.4W uplift combination is particularly important for tall structures and light steel roofs in high-wind Canadian locations.
  • Structural analysis documentation — STAAD.Pro or ETABS model summary, lateral system analysis results, and gravity member design inputs. For Ontario replacement projects, documentation of existing conditions and capacity assessments is integrated with the new design calculations.
  • Member design checks — CSA S16-19 factored resistance calculations: section moment resistance φMr, member moment resistance φMbr (for lateral-torsional buckling), section axial resistance φNsr, member axial resistance φCr, shear resistance φVr, and combined loading interaction ratios per CSA S16-19 Clause 13.8.
  • Connection design — CSA S16-19 Clause 13 bolt and weld design for governing connections, with factored resistance compared to maximum factored demands.

SCS Track Record — Ontario Steel Replacement Documentation

The Ontario steel replacement project required a documentation package that addressed both the existing structure assessment and the replacement design. The calculation package included: identification of existing structural conditions from original drawings, CSA S16-19 capacity assessment of existing members against current NBC 2020 demands, replacement member design for deficient or physically deteriorated elements, CSA S16-19 member resistance calculations for replacement sections, and connection design for the replacement-to-existing interfaces. The package was reviewed and stamped by the Ontario P.Eng. and submitted to building authority successfully. Replacement work was completed from the approved documents.

How to Engage SCS for Design Reports in Canada

Email [email protected] with: project province and city, structure type and NBC 2020 importance category, any existing drawings (for replacement or renovation projects), your Ontario/BC/Alberta P.Eng. of record, and target building permit submission date. Mubashir responds within one business day. WhatsApp at +974 6004 4913. Deliverables: PDF calculation package with NBC 2020 design basis, CSA S16-19 member design, connection design, and combined loading checks — formatted for provincial P.Eng. review and municipal building permit submission.

— FREQUENTLY ASKED QUESTIONS

Design Reports for Canada
— Common Questions

How does the structural permit process work in Ontario, Canada?

Ontario building permit applications require structural drawings and calculations by an Ontario P.Eng. The building department reviews under the OBC (Ontario Building Code). SCS provides the technical content — NBC 2020 load calculations and CSA S16-19 member design — which the Ontario P.Eng. reviews, stamps, and submits to the municipal building authority. This consultant model is standard for international design firms working in Canadian markets.

What are the key structural documentation requirements under NBC 2020?

NBC 2020 Part 4 documentation requires: load take-off (dead, live, snow, wind using NBC 2020 Section 4.1.7 reference pressure q in kPa, seismic from NRCan data), NBC 2020 load combinations, member design per CSA S16-19 or A23.3-19 with factored resistance ratios, and provincial P.Eng. stamp. Wind data from Canadian climatic tables and seismic data from NRCan hazard maps are the Canadian-specific inputs that differ from US or European load standards.

Are Canadian wind loads expressed differently from ASCE 7 wind pressures?

Yes. NBC 2020 expresses reference wind pressure q in kPa (kilopascals) directly, rather than basic wind speed V as in ASCE 7. Toronto's reference wind pressure is approximately 0.48 kPa (1/50-year), Vancouver 0.45 kPa, Winnipeg 0.57 kPa. This direct pressure approach eliminates the velocity-to-pressure conversion step but uses Canadian climatic data specific to each city. SCS uses the NBC 2020 Canadian climatic data tables for all Canadian wind load calculations.