Framing a house in Ottawa costs roughly $12 to $28 per square foot of floor area for labour and materials combined, which works out to about $40,000 to $95,000 for a typical 2,000–2,800 sq ft home. Labour alone usually runs $6 to $14 per square foot, with lumber and engineered materials making up the rest. The spread is wide because framing cost depends on the number of storeys, roof complexity, ceiling heights, the volatility of lumber prices, and whether you're framing a simple rectangle or a design full of angles, dormers, and cathedral ceilings. This guide breaks down framing cost per squa...
Expect $12 to $28 per square foot all-in for house framing in the Ottawa area, split roughly evenly between labour and materials on a standard build. This figure covers the structural skeleton — floor systems, exterior and interior wall framing, roof structure, and sheathing — but not the foundation below or the finishes above. Typical all-in framing totals by home size: • 1,200 sq ft bungalow — $22,000–$40,000 • 1,800 sq ft two-storey — $35,000–$62,000 • 2,400 sq ft two-storey — $48,000–$85,000 • 3,000+ sq ft custom home — $70,000–$120,000+ Simpler single-storey rectangles land at the low end of the per-foot range; complex two- and three-storey designs with steep or cut-up roofs, tall ceilings, and lots of corners push toward the top. These numbers assume conventional stick framing with dimensional lumber and engineered joists; steel or SIP construction prices differently.
A framing scope generally covers the floor system (joists, subfloor), wall framing (studs, plates, headers, sheathing), the roof structure (trusses or rafters, sheathing), stairs rough framing, and blocking for future fixtures. It typically excludes the foundation, windows and doors (though framers set the rough openings), insulation, roofing material, and any exterior cladding. Confirm whether sheathing, house wrap, and window/door install are in your framer's quote or handled separately.
Framing labour in Ottawa typically runs $6 to $14 per square foot, or roughly $45 to $75 per hour per framer when priced by time. Crews usually quote by the square foot for whole-house work and by the hour or day for smaller or unpredictable jobs. A skilled framing crew can frame a straightforward two-storey shell in one to three weeks depending on size and weather. Several things move labour rates. Complexity is the biggest: cathedral ceilings, curved walls, multiple roof planes, and tall two-storey open spaces all slow a crew and raise the per-foot rate. Site access and staging room matter on tight urban lots. Winter framing in Ottawa adds cost — snow removal, shorter daylight, cold-weather slowdowns, and temporary heating for any work that can't wait. Experienced crews cost more per hour but frame faster and straighter, which usually nets out cheaper than a bargain crew that leaves you with out-of-square walls the finishing trades have to fight.
Lumber is the most volatile line in a framing budget, and its swings can change a whole-house framing cost by tens of thousands of dollars. Dimensional lumber prices have whipsawed in recent years, so a quote that's a few months old may no longer reflect the current market. Beyond studs and plates, framing materials include engineered products — I-joists, LVL and glulam beams, and roof trusses — which are priced by the engineered design rather than by board foot. A typical material breakdown for framing: • Dimensional lumber (studs, plates, blocking) — the base structural material • Engineered joists and beams (I-joists, LVL) — floor and long-span support • Roof trusses or rafter lumber — often the single largest material category • Sheathing (OSB or plywood for walls and roof) — priced per sheet, volatile • Fasteners, hangers, and connectors — small per-unit but add up Because prices move, lock material pricing with your framer or supplier when you can, and ask whether the quote is fixed or subject to lumber-market adjustment.
Framing here has to account for heavy snow loads and deep frost, which influence roof truss design, beam sizing, and how the structure ties to a frost-protected foundation. Engineered roof trusses sized for Ottawa-area snow loads cost more than in milder climates, and proper detailing at the roof and rim joist matters for the insulation and air-sealing that follow. These aren't places to value-engineer aggressively — the structural design is set by the Ontario Building Code and local snow-load requirements.
Framing an addition typically costs more per square foot than framing a new house — often $18 to $35 per square foot — because crews must tie new structure into existing walls, floors, and roof lines. The efficiency of framing a fresh, open build disappears when a crew has to match floor heights, splice into old (often out-of-square) framing, and blend a new roof into an existing one. A small single-storey addition of 200–400 sq ft might frame for $8,000–$18,000, while a two-storey addition or one requiring a complex roof tie-in runs higher. As with whole-house framing, roof complexity and ceiling height dominate the cost. If you're planning an addition, get the framing quoted as part of the full scope, since the demolition, foundation, and roof tie-in interact and shouldn't be priced in isolation.
The design itself is the biggest lever on framing cost — a compact two-storey rectangle frames far cheaper per foot than a sprawling plan with many corners, bump-outs, and roof planes. Every corner, angle, and change in roof direction adds labour and material. Key cost drivers: • Number of storeys and total floor area • Roof complexity — simple gable versus hips, valleys, dormers, and cathedral ceilings • Ceiling height — 9- and 10-ft ceilings and open two-storey spaces cost more • Structural spans — long, open rooms need engineered beams and posts • Lumber-market pricing at the time of construction • Season — winter framing carries surcharges in Ottawa • Site access and staging on tight lots • Crew experience and quality
The costliest framing mistake is choosing a crew on price alone and ending up with out-of-square, out-of-plumb work that every subsequent trade has to correct. Framing errors cascade: crooked walls mean drywall problems, cabinet-fit problems, and door and trim headaches that quietly inflate the whole project. Other traps: • Accepting a lumber-market quote that's months stale, then facing a price adjustment mid-build • Not confirming whether sheathing, house wrap, and rough openings are included • Ignoring the interaction between framing and later trades — plumbing chases, HVAC runs, and electrical need thought-out framing • Under-budgeting for engineered beams and trusses, which are pricier than plain lumber • Skipping proper bracing and moisture protection when framing is exposed to Ottawa weather before the roof and cladding go on
Hire a framing crew with a track record of straight, square, code-compliant work — ask other trades and general contractors who they rely on, because framers build their reputation with the drywallers and finish carpenters who follow them. Confirm the crew carries liability insurance and WSIB coverage, and get a written quote that states clearly what's included (sheathing, openings, house wrap) and whether pricing is fixed or subject to lumber adjustment. On a full house, framing usually falls under your general contractor's scope, so vet the GC's framing subs as part of choosing the builder. For an addition or a smaller structure, get at least three quotes and compare inclusions, not just totals. Verify licensing and references, and make sure the schedule accounts for Ottawa weather — you don't want an open frame sitting exposed through a wet or freezing stretch.
Framing a house in Ottawa costs about $12 to $28 per square foot all-in, or roughly $40,000 to $95,000 for a typical 2,000–2,800 sq ft home. Labour alone is usually $6–$14 per square foot, with lumber and engineered materials making up the rest. Simpler single-storey designs sit at the low end; complex multi-storey homes with cut-up roofs and tall ceilings reach the top.
Across Ontario, house framing generally runs $12 to $28 per square foot combined for labour and materials, similar to the Ottawa range. The figure varies with design complexity, storeys, roof geometry, ceiling height, and lumber-market pricing at the time of construction. Additions cost more per foot — often $18 to $35 — because of tie-ins to existing structure.
Framing labour in Ottawa typically runs $6 to $14 per square foot, or roughly $45 to $75 per hour per framer when priced by time. Crews usually quote whole-house work by the square foot and smaller jobs by the hour or day. Complexity, ceiling height, roof geometry, winter conditions, and crew experience all move the rate.
Lumber is the most volatile line in a framing budget, and price swings can change a whole-house framing cost by tens of thousands of dollars. A quote a few months old may no longer reflect the market. Ask whether your framer's price is fixed or subject to lumber-market adjustment, and lock material pricing with your supplier when you can.
Framing an addition typically costs $18 to $35 per square foot — more than a new house — because crews must tie new structure into existing walls, floors, and roof lines and match old, often out-of-square framing. A small 200–400 sq ft single-storey addition might frame for $8,000–$18,000, with two-storey or complex roof tie-ins costing more.
Every corner, angle, roof plane, dormer, cathedral ceiling, and change in ceiling height adds labour and material. A compact two-storey rectangle frames far cheaper per foot than a sprawling plan with many bump-outs and a cut-up roof. Roof complexity and ceiling height are the two biggest drivers of framing cost after total floor area.
A skilled crew can frame a straightforward two-storey shell in one to three weeks, depending on size, complexity, and weather. Winter conditions, tight site access, and complex roofs extend the timeline. Framing is weather-sensitive, so builders try to get the structure sheathed and roofed before extended wet or freezing stretches.
On a full-house build, framing is normally part of your general contractor's scope, handled by their framing sub. On additions or smaller structures it may be a separate quote. Either way, confirm what the framing scope includes — sheathing, rough openings, house wrap — and vet the framing crew's reputation, since their accuracy affects every trade that follows.