Structural Engineering
Portfolio
KMG Civil Engineering
Projects06
Standard2025 OBC
RegionOntario, Canada
DisciplineStructural Engineering
KMG Engineering Structural Engineering  ·  Addition & Alteration

Addition
& Alteration

East York, Toronto, Ontario
Project TypeAddition & Alteration
Standard2025 OBC
Building2-Storey Detached
Project Overview

Full Building Addition & Alteration

This project involved the comprehensive structural engineering design for a full addition and alteration to an existing two-storey detached residence in East York, Toronto. The scope encompassed all levels of the building — basement through second floor — along with a complete roof redesign, new exterior elevations, and a structural addition at the rear.

The proposed design introduces a full second storey addition with master bedroom, three bedrooms, two bathrooms, walk-in closets and balconies, while the ground floor is reconfigured with a new family room, kitchen, dining room, living room and bathroom. The basement is restructured to include a recreation area, laundry, storage and garage.

  • Full second floor addition — master bedroom, 3 bedrooms, 2 bathrooms, W.I.C.
  • Ground floor alteration — family room, kitchen, dining, living room, bathroom
  • Basement alteration — recreation area, laundry, garage, storage, bathroom
  • New proposed roof with pre-engineered trusses, skylights & 5:12 slope
  • Proposed rear & east elevation with stucco, new balconies & sliding doors
  • LVL beam schedule — B1 through B5 & ledger beam (2×10)
  • TJI joist schedule — S33, S47 @ 16" O.C. & 12" O.C.
  • New 1070mm high glass guardrails per OBC 9.8.8
  • Fire-rated glass windows & proposed skylights
  • Full drawing package — 10 sheets across all levels & elevations
4
Floor Levels
3
Proposed Bedrooms
10
Drawing Sheets
5:12
Proposed Roof Slope
49%
Rear Wall Demolished
2025 OBC
Building Standard

Before & After Floor Plans

Existing
Basement Floor Plan
Before
Existing Basement Level
Proposed
Basement Floor Plan
After
Proposed Basement Level
Existing
Ground Floor Plan
Before
Existing Ground Level
Proposed
Ground Floor Plan
After
Proposed Ground Level

Before & After Floor Plans

Existing
Second Floor Plan
Before
Existing Second Floor
Proposed
Second Floor Plan
After
Proposed Second Floor
Existing
Existing Roof Plan
Before
Existing Roof Plan
Proposed
Proposed Roof Plan
After
Proposed Roof Plan

Before & After Elevations

Existing & Proposed
Existing & Proposed East Elevation
East Elevation
Existing & Proposed
Existing & Proposed Rear Elevation
Rear Elevation
KMG Engineering Structural Engineering  ·  Second Suite

Second
Suite
Basement

King City, Ontario
Project TypeSecond Suite Basement
Standard2025 OBC
Building2-Storey Detached
Project Overview

Second Suite Basement Alteration

This project involved the full structural engineering design for a legal second suite basement alteration at a two-storey detached residence in King City, Ontario. The scope required careful analysis of the existing structure — including steel beams, posts, and joist systems — to facilitate a compliant and livable secondary dwelling unit.

The proposed basement layout was designed to maximize functional living space while meeting all requirements of the 2025 Ontario Building Code, including fire separation, egress, ventilation, and minimum ceiling height standards.

  • Structural assessment of existing 2×8 floor joist system @ 16" O.C.
  • Design of proposed bedroom, kitchen/living, recreational, study and office areas
  • New side entrance door with foundation wall opening
  • Fire-rated stair assembly with 1-hour F.R.R. wall construction
  • Smoke alarm & carbon monoxide detector layout per OBC
  • Proposed window openings for egress compliance
  • New LVL beam design for structural load redistribution
  • Site plan & full multi-floor drawing package
65'–8"
Total Basement Length
33'–4"
Total Basement Width
100 kPa
Soil Bearing Capacity
3
Floors Documented
8
Drawing Sheets
2025 OBC
Building Standard

Before & After Floor Plans

Existing
Basement Floor Plan
Before
Existing Basement Floor
Proposed
Basement Floor Plan
After
Proposed Basement Floor
KMG Engineering Structural Engineering  ·  Basement Alteration

Basement
Floor
Alteration

Woodbridge, Ontario
Project TypeBasement Alteration
Standard2025 OBC
Building2-Storey Detached
Project Overview

Basement & Ground Floor Alteration

This project involved the full structural engineering design for a basement and ground floor alteration at a two-storey detached residence in Woodbridge, Ontario. The scope required a thorough assessment of the existing layout — including unexcavated areas, cold room, furnace room, and existing posts — to enable a fully compliant and functional converted dwelling.

The proposed design introduces a self-contained layout with bedroom, kitchen, living and dining, laundry room, and bathroom across the basement level, with ground floor modifications to accommodate the new shared side entrance — all in full compliance with the 2025 Ontario Building Code.

  • Proposed bedroom (154 sq. ft.) with egress window
  • Proposed living and dining area (154 sq. ft.)
  • Proposed kitchen (45 sq. ft.) with carbon monoxide alarm
  • Proposed laundry room with dedicated access
  • Proposed shared side entrance with emergency lighting above
  • 30-min & 50-min fire separation wall construction per 2025 OBC
  • Interior & fire-rated door schedule (D1, D2, D3) with self-closing devices
  • Interconnected smoke alarm & carbon monoxide detector layout
  • Window lintel schedule — steel angles L1, L2, L3 per span
  • Full drawing package — basement & ground floor plans
154 ft²
Proposed Bedroom
154 ft²
Living & Dining
45 ft²
Proposed Kitchen
50 min
Fire Separation
4
Drawing Sheets
2025 OBC
Building Standard

Before & After Floor Plans

Existing
Basement Floor Plan
Before
Existing Basement
Proposed
Basement Floor Plan
After
Proposed Basement
Existing
Ground Floor Plan
Before
Existing Ground Floor
Proposed
Ground Floor Plan
After
Proposed Ground Floor
KMG Engineering Structural Engineering  ·  Deck Alteration

Deck
Alteration

Vaughan, Ontario
Project TypeDeck Alteration
Standard2025 OBC
Building2-Storey Detached
Project Overview

Deck Structural Alteration

This project involved the full structural engineering design for a deck alteration at a two-storey detached residence in Vaughan, Ontario. The scope required assessment of the existing deck structure at both the basement and ground floor levels, including the existing steel beam, joists, posts, and ledger board connections.

The proposed design reconfigures the deck framing with updated post sizing, new joist layout, revised ledger board anchoring, and a proposed basement walkout — all in compliance with the 2025 Ontario Building Code and the project's comprehensive construction notes.

  • Existing deck basement plan — steel beam, joists & post layout assessment
  • Proposed deck basement plan — updated 3-2"×8" beam, revised joist schedule
  • Proposed deck ground floor — new sliding door & proposed basement walkout
  • 6"×6" posts on 12" sonotubes per proposed layout
  • 1½" × 9¼" ledger board w/ anchors @ 24" O.C.
  • 2-2×8 laminated beam at ground level
  • Full construction notes package — 25 sections
  • Roof, foundation, brick veneer, insulation & slab specifications
32'–4"
Deck Width
12"
Sonotube Diameter
24" O.C.
Ledger Anchor Spacing
25
Construction Note Sections
4
Drawing Sheets
2025 OBC
Building Standard

Construction Notes

Construction Notes

Before & After Deck Plans

Existing
Deck — Basement & Ground Floor
Before
Existing Deck Plans
Proposed
Deck — Basement & Ground Floor
After
Proposed Deck Plans
KMG Engineering Structural Engineering  ·  Second Suite Alteration

Second
Suite
Alteration

King City, Ontario
Project TypeSecond Suite Alteration
Standard2025 OBC
Building2-Storey Detached
Project Overview

Second Suite Basement Alteration

This project involved the full structural engineering design for a legal second suite basement alteration at a two-storey detached residence in King City, Ontario. The scope required careful analysis of the existing structure — including steel beams, posts, and joist systems — to facilitate a compliant and livable secondary dwelling unit.

The proposed basement layout was designed to maximize functional living space while meeting all requirements of the 2025 Ontario Building Code, including fire separation, egress, ventilation, and minimum ceiling height standards.

  • Structural assessment of existing 2×8 floor joist system @ 16" O.C.
  • Design of proposed bedroom, kitchen/living, recreational, study and office areas
  • New side entrance door with foundation wall opening
  • Fire-rated stair assembly with 1-hour F.R.R. wall construction
  • Smoke alarm & carbon monoxide detector layout per OBC
  • Proposed window openings for egress compliance
  • New LVL beam design for structural load redistribution
  • Site plan & full multi-floor drawing package (SA-01 to SA-08)
65'–8"
Total Basement Length
33'–4"
Total Basement Width
100 kPa
Soil Bearing Capacity
3
Floors Documented
8
Drawing Sheets
2025 OBC
Building Standard

Before & After Floor Plans

Existing
Basement Floor Plan
Before
Existing Basement
Proposed
Basement Floor Plan
After
Proposed Basement
Existing
Ground Floor Plan
Before
Existing Ground Floor
Proposed
Ground Floor Plan
After
Proposed Ground Floor
KMG Engineering Structural Engineering  ·  Deck Reconstruction

Deck
Reconstruction

Whitchurch-Stouffville, Ontario
Project TypeDeck Reconstruction
Standard2025 OBC
Building1-Storey Dwelling
Project Overview

Deck Reconstruction Project

This project involved the full structural engineering design for a deck reconstruction at a one-storey dwelling in Whitchurch-Stouffville, Ontario. The existing deck was assessed and determined to require full reconstruction — nothing of the original structure was to remain.

The proposed design introduces a reconstructed deck with a new structural framing system including LVL pressure-treated beams, sonotube foundations, new joist layout with hangers, glass railing system, and a fully detailed section drawing with connection details D1 and D2 per 2025 OBC requirements.

  • Full deck reconstruction — existing structure entirely removed
  • 2-2×10 LVL pressure-treated beam (B1) primary structure
  • 6"×6" posts on 16" dia. sonotubes, 4' below grade, 6" above grade (P1)
  • 4"×4" posts on 8" dia. sonotubes (P2)
  • New 2"×8" @ 16" O.C. joists on hangers (J1)
  • 2-2"×8" ledger board w/ anchors, thru-bolt w/ nut & washer @ 24" (LD)
  • 12"×12"×70" concrete pad at stair base
  • Glass railing system with blocking per spec sheet
  • Proposed section S with full connection details D1 & D2
22'–0"
Deck Width
16"
Primary Sonotube Dia.
4'
Post Depth Below Grade
8'–4"
Top of Deck Height
3
Drawing Sheets
2025 OBC
Building Standard

Before & After Deck Plans

Existing
Deck Plan
Before
Existing Deck Plan
Proposed
Deck Floor Plan
After
Proposed Deck Floor Plan

Proposed Section & Details

Proposed Section
Section S  ·  Details D1 & D2
Proposed Section and Details