Open Concept Renovation: What's Involved in Removing Interior Walls

Planning Your Renovation

Creating an open-concept living space is one of the most popular renovation goals — but the process is more complex than simply taking down a wall, and the structural considerations are non-negotiable.

The first step in any wall removal project is determining whether the wall is load-bearing. Load-bearing walls transfer the weight of floors and roof structure above down to the foundation. Removing or modifying them without proper structural support causes deflection, cracking, and in extreme cases, structural failure.

What the Process Looks Like

Load-bearing identification requires examining the wall's position in the house plan: walls running perpendicular to floor joists, walls above a basement beam, and walls near the centre of a wide-span house are typically load-bearing. The definitive assessment comes from a structural engineer or experienced contractor who understands the full structural system.

When a load-bearing wall is removed, a structural beam (LVL, steel, or timber) must be installed to carry the load previously distributed along the wall's length. The beam's size depends on the span and load — a wide-span opening in a two-storey home requires a significantly larger beam than a 3-metre opening in a bungalow.

Working With D&D Interior Services

Electrical, plumbing, and HVAC runs inside the wall must be rerouted. Most walls contain at least one electrical circuit. Some contain heating supply and return ducts, plumbing supply lines, or drain pipes. Identifying and rerouting these services adds cost but is non-negotiable.

An open-concept layout requires an Ontario building permit. The permit process requires drawings showing the beam specification, post locations, and load path from the new beam to the foundation. D&D Interior Services manages the permit process as part of structural renovation projects.