Built to plan
Framed from your architectural and engineered drawings, to the plan and the Ontario Building Code, not by rule of thumb.
Custom Framing
Subfloor and Sheathing
Subfloor and sheathing across Toronto, the GTA and the Golden Horseshoe, built to your drawings and the Ontario Building Code. Timberr Framing is licensed, insured and WSIB-covered, rated 5.0 on Google, with a workmanship warranty behind every job.
- Licensed, Insured & WSIB-Covered
- Backed by our workmanship warranty
- 5.0 on Google
Get your framing quote
Send the drawings, or just the address and what you are building. We will tell you what is missing before we price it.
5.0 on Google
Workmanship warranty, we stand behind our work Licensed, Insured & WSIB-Covered Completed to code & Ontario requirements Custom-framed to your plans Serving the GTA & surrounding area
What You Get
What to expect from subfloor and sheathing
Built to last
Engineered lumber, LVL/PSL beams, and connectors chosen for the spans and loads on the plans.
Quote-ready
Send specs, drawings, or photos and get a free, no-obligation site visit and estimate with no guesswork.
Code-conscious
Installation and site work completed in accordance with Ontario requirements.
Our Process
How the work moves from drawings to handoff
Ready to price subfloor and sheathing?
Send the drawings, or just the address and what you are building. We will tell you what is missing and what happens next.
What GTA clients say
5.0 · Verified reviews on Google B Brookevia Google
★★★★★
Timberr Framing did an excellent job with our commercial units! We'll definitely be using them again for future projects!
T Trudyvia Google
★★★★★
We have worked with Timberr Framing on a few projects, and they continue to impress with their great workmanship and reliable service in our commercial unit. We highly recommend them for all your metal stud framing needs!
W Williamvia Google
★★★★★
Highly recommend to anyone with a stacked townhome project! Outstanding craftsmanship once again Timberr Framing.
S Sokratisvia Google
★★★★★
I was impressed by Timberr Framing’s skilled craftsmanship during our commercial framing project. They delivered high-quality work and maintained strong structural integrity in our commercial development that required metal framing.
E Ericavia Google
★★★★★
Timberr Framing’s team was not only punctual and dependable but also demonstrated exceptional skills in both addition and commercial framing projects. We'll definitely hire them again!
C Cesarvia Google
★★★★★
Timberr Framing has an efficient process and always completes work on time. Their team is highly organized, and our team of developers are always satisfied with the final results.
How It Gets Built
More about subfloor and sheathing
Understanding subfloor and sheathing
The systems and conditions that change the work
Plywood, OSB, waferboard, lumber and certain other boards appear in different Code provisions, with material standards and minimum properties tied to their use. That means your engineer may need to settle the load path before material is ordered.
Particleboard subflooring is permitted only where factory construction prevents weather exposure. Its upper face and edges need water-absorption treatment in periodically wet rooms. That means your quote carries the matching member layout, connector schedule and site handling.
Tongue-and-groove panel edges can provide required subfloor edge support; otherwise the Code calls for blocking at least 38 mm by 38 mm where edge support is required. That means you get the route supported by the drawings instead of a choice made from habit.
Roof-sheathing edge support can use metal H clips or blocking at least 38 mm by 38 mm, while tongue-and-groove edges can remove that support requirement under the stated provision. That means your following trades inherit that system's spacing, openings and limits.
What belongs in the scope
Subflooring is required beneath a finish floor where the finish does not have adequate strength to carry the design loads, so the subfloor-sheathing boundary is fixed before award. Structural sheathing work within new construction, additions and material structural alterations is part of the permitted framing scope where a building permit is required. That means your quote can name exclusions and owner-supplied items instead of hiding them.
Floor, roof and wall area set base panel quantity, while openings, hips, valleys, setbacks and irregular edges increase cuts and waste, so measured subfloor-sheathing quantities control the takeoff. Support spacing and required panel rating or thickness change material selection, which means you can compare the selected member schedule rather than a generic allowance. Required blocking, H clips, tongue-and-groove edges and braced-wall nailing change labour and connector quantities, so subfloor-sheathing coordination is visible before approval.
The mistake we want found before the work begins
Two panels butted tight can look cleaner on framing day and buckle after they take on moisture. The required edge gap is small, but the repair is not once walls or roofing sit over the sheets. We maintain the specified spacing while every joint is still visible.
Member and fastening decisions that affect the result
Wood-based subfloor panels must conform to one of the plywood, construction-sheathing, OSB or waferboard standards listed in OBC 9.23.15.2. That means your installed member must match the grade or product shown in the design. Plywood subflooring is installed with surface grain perpendicular to the joists, and joints parallel to joists are staggered. That means you can verify the material condition before it is enclosed.
The corresponding face orientation for qualifying OSB and waferboard subflooring is also perpendicular to joists, with parallel joints staggered. That means your bearing and connection detail must preserve that capacity. At 400 mm support spacing, Table 9.23.15.5-A lists a minimum 15.5 mm thickness for plywood and O-2 grade OSB, subject to the table's material and floor-system conditions. That means you can trace the fastening requirement to the actual assembly.
Plans, sequencing, and site decisions
The hold point and the trades waiting after it
Ontario names structural framing as a construction stage for which the permit holder contacts the municipality for inspection. That means your sequence must reach that visible hold point before finishes. Your municipality's approved drawings typically distinguish existing and proposed construction on addition work. So replacement sheathing and new structural panels should remain traceable to the permitted scope. That means you can plan the following trade around the stated response.
Flooring installers inherit panel thickness, joint support, fastening, moisture condition and surface flatness from the subfloor. That means your mechanical and electrical work may have to be complete before the framing review. Roofers inherit panel rating, support, edge condition, spacing and damaged areas from the roof deck, which means you avoid reopening work the municipality needed to see.
Planning the work across the GTA
Ontario sets the building rules while the municipality administers the permit and inspection for the address. That means your approved set must settle plywood, osb, waferboard, lumber and certain other boards appear before work is covered. Your site decides the delivery, storage and lifting route for that system. So you get a different sequence for a clear subdivision lot, a tight infill lane or an occupied commercial unit.
What to send for a useful quote
Floor, roof and wall framing plans with support spacing and all current revisions, which means you give the estimator the current design basis. Panel material, grade or span rating, thickness and face-orientation requirements, which means your takeoff can include the scheduled members and openings. Add the address, permit status and target start window, so you can separate what is ready to price from what still needs a decision.
Comparing framing quotes?
Ours names what we frame, what another trade supplies, and what has to be settled before we mobilise. Compare the scope, not two totals built on different assumptions.
Finished On Site
Framed on site and built to last
Clean framing, tight sequencing, and a tidy site, coordinated with concrete, drainage, openings, and surrounding trades, and completed to code where site work is in scope.
- Coordinated with the surrounding build
- Code-minded framing for real-world use
- Quote-ready support from plans to inspection
FAQ
Subfloor and Sheathing FAQ
Will subfloor and sheathing hold my construction schedule?
It protects the schedule when panel grade, span rating and orientation are confirmed before installation. A correct thickness with the wrong mark is still the wrong panel.
What usually delays subfloor and sheathing after mobilisation?
Tight joints and unsupported or misoriented edges create failures that appear after concealment. We check them during placement.
What do the following trades inherit from this work?
The next crew receives a flat, supported surface with joints and fastening completed for the specified assembly.
Who owns a framing conflict found on site?
Timberr owns documenting the conflict, protecting the affected work and getting it to the responsible designer or consultant. We do not hide an unapproved field change inside the handoff.
Not sure the drawings are ready?
Most are not, and that is fine. Send what you have and we will tell you what is missing before it costs you a week on site.
Our Work
View Our Projects See real projects across Toronto & Ontario
Custom homes, additions, renovations, and multiplexes, framed on site for builders, homeowners, contractors, and property teams.
Request a subfloor and sheathing quote
Send the current drawings, property address, permit status and target start. We will check the package around plywood, osb, waferboard, lumber and certain other boards appear, so you can resolve a missing structural, access or coordination decision before it becomes a site delay.
Backed by our workmanship warranty, we stand behind every job · Licensed, Insured & WSIB-Covered
Send your project details
Send the drawings, or just the address and what you are building. We will tell you what is missing before we price it.
Subfloor and Sheathing Across the GTA
View all service areas →Timberr Framing provides subfloor and sheathing, built to plan with quote-ready support across Toronto and surrounding Ontario communities.
Companies We've Worked With
Trusted by Leading Organizations
Timberr Framing supports plan-based framing for commercial, institutional, property, and builder-led projects across Toronto and Ontario.
Tim Hortons 
Subway 
University of Toronto 
Madison Group 
RioCan 
Women's College Hospital 
Starbucks 
Mazda 
TD Bank 
City of Toronto 
Popeyes Tim Hortons Subway University of Toronto Madison Group RioCan Women's College Hospital Starbucks Mazda TD Bank City of Toronto Popeyes