10 Signs Your Wall Is Load-Bearing (and What to Do Next)

Before you start knocking down any wall in your home, it’s critical to know whether it’s load-bearing. Here are 10 signs your wall is load-bearing—and what steps you should take next if you think it is.

1. It’s Located in the Middle of the House

Load-bearing walls are often found near the center of your home, supporting the structure above.

2. It Runs Perpendicular to Floor Joists

Walls that run perpendicular (at a 90-degree angle) to the floor or ceiling joists are usually load-bearing.

3. There’s Another Wall Directly Above or Below

If a wall lines up with another wall in the basement, first floor, or upper story, it could be load-bearing.

4. The Wall Extends to the Foundation

Check the basement—if the wall above extends directly down to the foundation or a beam, that’s a strong sign.

5. It’s a Thick Wall (More Than 4 Inches)

Interior partition walls are often thinner, while load-bearing walls tend to be thicker and sturdier.

6. It Supports Beams or Columns

If you see a beam or column terminating on your wall, it’s likely transferring load.

7. The Wall Is Part of an Exterior Wall

All exterior walls are load-bearing unless your home was specially engineered otherwise.

8. You See Double Top Plates

Open the drywall at the top—a double layer of horizontal wood (top plate) is often used in load-bearing construction.

9. You Notice Structural Materials (LVL or Steel)

If you see engineered beams, steel supports, or posts, you’re likely dealing with a load-bearing wall.

10. It Appears on Your Home’s Blueprints

Review your house plans. Load-bearing walls are usually marked or shown as thicker lines.

What Should You Do Next?

1. Don’t Start Demolition Yet!

If any of these signs apply, don’t touch the wall until you get a professional assessment.

2. Contact a Structural Engineer

Our engineers can inspect your wall and confirm if it’s load-bearing.

3. Apply for Permits if Needed

Structural changes require a city permit. Learn more about permits.

4. Get a Safe Plan

If removal is possible, your engineer will design a safe replacement support (like a beam).

Frequently Asked Questions

What happens if I remove a load-bearing wall without support?You risk serious damage, including sagging, cracks, or collapse.

How much does it cost to remove a load-bearing wall? Depends on size, materials, and engineering. Contact us for a quote.

See more in our FAQ.

Internal Links for More Information

• Services

• FAQ

• Contact

External Resources

• This Old House – Home Improvement & DIY Guides(Search “load bearing wall signs” for more details)

• Family Handyman – DIY Tips & Home Projects(Search “load bearing wall” for practical guides)

• The Spruce – Home Renovation Advice(Search “load bearing wall” for expert tips)

• City of Toronto – Building Permits
  

Contact Candoo Engineering

Not sure about your wall? Call Candoo Engineering for expert inspection:

• Phone: (437) 255-4575

• Email: info@candooengineering.com

• Website: www.candooengineering.com