Commercial Shaft Wall Assembly in Toronto

Fire-rated protection for elevator shafts, stairwells and mechanical cores.

Why Toronto Builders Count on Our Shaft Wall Systems

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Interior shaft showing commercial shaft wall assembly in Toronto by Express Drywall Services.

At Express Drywall Services, we provide expert shaft wall assembly for commercial, residential and mixed-use developments across Toronto. Our systems are designed to contain fire, smoke and sound within vertical service areas such as elevator shafts, stairwells and utility chases. We work with tested assemblies that meet ULC and OBC requirements – essential for high-rise and mid-rise construction.

Our team installs shaft walls quickly and accurately, even when access is limited to one side of the framing. Using approved shaft liner panels, metal track systems and fire-rated boards, we create structures that are both strong and code-compliant. Our installers follow engineered details for head-of-wall joints, control joints and vertical seams.

We coordinate closely with other trades to manage penetrations, firestopping and transition points. This reduces costly rework and inspection delays down the line. Every shaft wall we install is prepped for long-term performance and clean integration with adjacent drywall, block or curtain wall systems.

With over 20 years of commercial drywall expertise, we understand the safety-critical role shaft walls play in your structure. We deliver clean, inspected assemblies – fast – and help you stay on track for occupancy deadlines. When life safety and schedule both matter, Express Drywall Services gets it done right.

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Interior shaft showing commercial shaft wall assembly in Toronto by Express Drywall Services.

Built to Protect, Installed to Code

How We Assemble Shaft Wall Systems in Toronto

We follow strict procedures to ensure every shaft wall assembly meets fire, acoustic and structural standards - even in tight, one-sided conditions.

We begin by reviewing architectural shaft layouts and MEP drawings to identify penetrations and clearances. This step helps coordinate with trades like elevator contractors, HVAC teams and firestopping crews. We verify UL/ULC-rated designs and confirm any specific site constraints. Proper planning prevents clashes and costly mid-project changes.
Our team installs floor and ceiling track systems using concrete screws or powder-actuated fasteners for solid anchorage. We ensure track placement matches the shaft wall rating and accounts for shaft liner insertion. Where required, deflection track is used at the top to allow for movement. Alignment and squareness are checked before proceeding.
We insert fire-rated shaft liner panels between studs, working from one side of the wall when the shaft is inaccessible. Panels are placed vertically with joints staggered and securely seated in the C-H studs. This technique ensures safety compliance without requiring access from the inside of the shaft. We take extra care to avoid damaging panels during insertion.
Once liner panels are in place, we attach fire-rated gypsum board to the accessible side. Boards are fastened per design requirements and any necessary corner reinforcements or shaft wrap components are added. Openings are cut cleanly for access doors, hatches, or MEP services. We treat seams, fasteners and joints to prepare for inspection or finishing.
Before sign-off, we inspect all joints, headers and details against rated assembly drawings. Penetrations are sealed with firestop systems and we confirm continuity of the fire barrier. Our crews leave the shaft area clean, clearly marked and ready for the next phase. We also assist with documentation for permit closeout or safety inspections.

Protection That Runs Floor to Floor

When Shaft Wall Assembly Is Required

Shaft wall assemblies are a must-have in any multi-storey commercial or residential building with vertical service zones. They’re designed to enclose elevator shafts, stairwells, mechanical risers and duct chases – protecting people and systems in the event of a fire. These assemblies contain flame, smoke and structural failure, helping buildings meet fire-resistance ratings and egress code. Shaft walls are especially important when traditional access to both sides of the wall isn’t possible.

You’ll need shaft wall systems when constructing high-rises, hospitals, condos or office buildings where mechanical and transportation systems span multiple levels. Developers also specify them when strict code compliance is required for occupancy, insurance or safety audits. Shaft walls are engineered to perform under pressure and our team installs them with the same commitment to durability and life safety. If your project reaches upward – shaft wall assembly is the fire-rated core it depends on.

More Than Just Fire-Rated Cores

Our Full Range of Commercial Interior Solutions

High-rise elevator with visible shaft wall structure by Express Drywall Services in Toronto.

Shaft walls are critical to safety and structure, but they’re just one part of a complete commercial interior. At Express Drywall Services, we support Toronto construction projects with a wide scope of interior solutions – from framing to finishing. Our team is trained to work in high-rise builds, healthcare environments, industrial facilities and more.

We install metal framing systems, resilient channels for sound control and fire separation walls tailored to your occupancy requirements. Our services also include insulation for thermal and acoustic performance, drywall hanging and multi-layered assemblies. For easy-to-clean spaces like commercial kitchens or service corridors, we offer FRP panel systems built to withstand impact and moisture.

We also install access doors, drop ceilings, Aria vents and perform professional taping & mudding, painting. Our approach is clean, collaborative and code-driven – designed to support trades working in parallel. Whether you’re enclosing elevator cores or finishing tenant interiors, we bring consistency and control to the entire build.

Our commercial crews follow engineered specs, maintain tidy sites and complete work with minimal disruption. We stay ahead of issues with proactive coordination and jobsite communication. Every phase is managed with attention to detail and backed by over 20 years of experience. With Express Drywall Services, you get more than shaft walls – you get commercial interiors that hold up from core to corridor.

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Ensure fire-rated protection and code compliance between floors - get your free estimate from Express Drywall Services today.

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Cutting pliers tool – Express Drywall Services
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