Structural · Cost Guide
How Much Does Framing Cost in Ontario?
Framing costs in Ontario range from $5 – $10 per sq ft. Prices vary by scope, city, and site conditions.
$5+
Starting price
1-4 weeks
Timeline
10%
Recommended contingency
Framing Cost Breakdown
| Scope | Low | High | Unit | Labour | Material |
|---|---|---|---|---|---|
| Interior wall framing | $5 | $10 | per sq ft | 65% | 35% |
| Basement framing (full basement) | $3,000 | $6,000 | per project | 60% | 40% |
| Addition framing (per sq ft of floor area) | $15 | $30 | per sq ft | 55% | 45% |
| Structural beam installation (steel) | $2,000 | $5,000 | per beam | 45% | 55% |
| Load-bearing wall removal + beam | $3,000 | $8,000 | per opening | 50% | 50% |
Price Ranges at a Glance
Interior wall framing
Basement framing (full basement)
Addition framing (per sq ft of floor area)
Structural beam installation (steel)
Load-bearing wall removal + beam
What's Included vs Not Included
Typically Included
- Layout and plate installation
- Stud walls (16" or 24" on center)
- Headers and cripple studs
- Blocking for fixtures and cabinets
- Basic fasteners and hardware
Not Included (Extra Cost)
- Structural engineering for load-bearing changes
- Steel beams and lally columns (priced separately)
- Insulation and vapor barrier
- Electrical and plumbing rough-in
- Drywall and finishing
- Building permits for structural modifications
Framing Cost by City
Prices adjusted for local labour rates and material costs across 15 GTA cities.
| City | Low | High | vs Toronto | Details |
|---|---|---|---|---|
Toronto City of Toronto | $5 | $10 | 0% | View |
Mississauga Peel Region | $5 | $9 | -5% | View |
Brampton Peel Region | $5 | $9 | -8% | View |
Vaughan York Region | $5 | $10 | -3% | View |
Markham York Region | $5 | $10 | -3% | View |
Richmond Hill York Region | $5 | $10 | -4% | View |
Aurora York Region | $5 | $9 | -6% | View |
Oakville Halton Region | $5 | $10 | +2% | View |
Burlington Halton Region | $5 | $10 | -4% | View |
Milton Halton Region | $5 | $9 | -8% | View |
Ajax Durham Region | $5 | $9 | -9% | View |
Pickering Durham Region | $5 | $9 | -8% | View |
Oshawa Durham Region | $4 | $9 | -12% | View |
Whitby Durham Region | $4 | $9 | -10% | View |
Hamilton City of Hamilton | $4 | $9 | -10% | View |
Permit & Engineering Costs
Building Permit
Municipal building department
Required for new construction, additions, structural alterations. Includes plan review and multiple inspections (foundation, framing, insulation, final).
$500-$3,000 (depends on project size)
Money-Saving Tips
Lumber prices fluctuate 20-30% seasonally — check current rates before budgeting.
Use 2x6 exterior walls instead of 2x4 for better insulation cavity without foam board.
Pre-plan all electrical and plumbing runs before framing to avoid costly re-work.
Steel beam installation requires LVL or engineered lumber specification from an engineer.
Frame and rough-in all services before closing walls — opening finished walls costs 5x more.
Related Cost Guides
Framing Cost FAQs
What's the difference between 2x4 and 2x6 wall framing?
2x4 walls are 3.5 inches deep and hold R12-R15 insulation; they're standard for interior walls and older construction. 2x6 walls are 5.5 inches deep and hold R19-R22 insulation, making them better for exterior walls in cold climates. Energy codes in Ontario now push toward 2x6 exterior framing for better thermal performance. 2x6 framing costs about 20-30% more in materials and labour but pays back in lower heating bills.
Do I need engineered lumber or can I use regular 2x10 joists?
Depends on the span and load. OBC Part 9 includes span tables: for example, 2x10 #2 SPF joists at 16 inches on center can span about 14 feet for floors. Go longer and you need 2x12s or engineered I-joists. Engineered lumber (I-joists, LVL) spans farther, doesn't shrink or twist, and allows longer HVAC ducts to run through pre-cut holes. Cost is 2-3x higher, but you get more open floor plans and fewer support posts in basements.
How do I know if a wall is load-bearing?
Load-bearing walls run perpendicular to floor or ceiling joists and carry weight from above down to the foundation. In most houses, exterior walls are load-bearing, and there's usually one main interior load-bearing wall running down the center of the house. Check the basement or attic: if a wall sits directly above a beam or foundation wall, it's probably load-bearing. Never remove a wall without confirming — if you guess wrong, you'll have sagging floors or roof collapse. Hire a structural engineer or experienced framer to assess before you swing a sledgehammer.
What's a header and how do I size it?
A header is a horizontal beam that spans an opening (window, door, passageway) and carries the load from above around the opening down to jack studs on each side. Headers can be built from doubled 2x8, 2x10, or 2x12 lumber, or from a single LVL or glulam beam. Sizing depends on the span and the load: a 3-foot window in a non-load-bearing wall might only need a 2x4 laid flat, while an 8-foot opening in a load-bearing wall could need a doubled 2x10 or a 1.75-inch LVL. OBC Part 9 has span tables, but for anything complicated, get an engineer to spec the header.
Can I frame with steel studs instead of wood?
Yes, but it's less common in Ontario residential work. Steel studs (20-gauge or 25-gauge) are popular for commercial interiors and non-load-bearing partition walls. They don't rot, warp, or burn, and they're dimensionally stable. Downsides: steel conducts heat (thermal bridging), you need different fasteners and tools, and load-bearing steel framing requires engineering. Most Ontario framers stick with wood for houses because it's faster, cheaper, and easier to work with.
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