Open-concept renovations are still in — but skipping the structural engineer can cost you more than money
Open floor plans remain one of the most sought-after features in home remodeling. The appeal is obvious: clean sightlines, more natural light, and a flexible living space that fits the modern lifestyle. But as many homeowners across the Philadelphia region are learning — sometimes the hard way — removing a wall isn’t just a design decision. It’s a structural one.
For homes built between the 1950s and early 2000s, especially in areas like Yardley, King of Prussia, and the Main Line, knocking down a wall often means modifying the very system that holds the house up. And once that system is disturbed, mistakes aren’t just cosmetic — they can become catastrophic.
“We get called in all the time to fix problems that could’ve been avoided with a 30-minute consultation,” says Structure Professionals founder, Patrick Duffy “Just because a wall ‘feels’ like it’s not load-bearing doesn’t mean it isn’t doing critical work.”
The Rise — and Risk — of the Open Concept
HGTV-style home transformations have driven open-concept popularity for over a decade. But what gets glossed over in many TV renovations is the behind-the-scenes engineering required to safely create those wide, airy spaces.
In traditional framed homes, interior walls often carry the weight of the roof or upper floors, distributing loads down into the foundation. Removing one of those walls without redistributing that load can result in:
- Sagging ceilings or cracked drywall
- Uneven floors above the removed wall
- Doors and windows that stop functioning properly
- Long-term structural deflection
- In worst-case scenarios, partial collapse
And these issues may not show up immediately. Some take months or even years to fully reveal themselves — often after a home is sold, appraised, or listed again.
How to Know if a Wall is Load-Bearing
There’s no one-size-fits-all answer. A wall that’s non-structural in one home may be absolutely critical in another. Some general rules:
- Walls running perpendicular to floor joists are more likely to be load-bearing
- Central walls in multi-story homes often carry load from above
- Past renovations may have already shifted how loads are distributed
- Basements and attics often reveal what’s really going on
But the only reliable way to know for sure is to have a licensed structural engineer evaluate the framing, load path, and support system of the home. That’s not something your contractor or architect can guess — and it’s why bringing in the right team early matters.
“If you’re planning to remove a wall — especially one near the center of the home — you need to know exactly what it’s doing structurally before you touch it,” says Duffy. “We’ve seen homes where DIY wall removal led to thousands of dollars in retroactive repairs.”
What Structural Engineers Do During an Open-Concept Renovation
When homeowners reach out to Structure Professionals before opening up a floor plan, the process is clear and proactive. It typically includes:
- On-site evaluation of framing, joist direction, and bearing points
- Assessment of current load paths and how they’ll be affected
- Design of new structural supports — such as beams, columns, or footings
- Coordination with the contractor to ensure correct installation
- Stamped engineering drawings for permit approval
This type of planning ensures the renovation is not only beautiful — but safe, code-compliant, and structurally sound for years to come.
It’s Not Always About Removing — Sometimes It’s About Replacing
In some cases, homeowners want to open up part of a wall — not remove it entirely. That might involve widening a doorway, adding a passthrough, or shifting a staircase. Even these seemingly minor changes can disturb the balance of weight inside a structure.
Smart renovations don’t eliminate structure — they rebuild and redistribute it. A properly sized LVL (laminated veneer lumber) beam, flush-mounted header, or steel post can maintain full load capacity while giving the open look homeowners want.
“You can absolutely get the open-concept feel you want — safely,” says the Structure Professionals team. “You just need the right supports in the right places. That’s what we design every day.”
Don’t Let Design Outpace Safety
Removing a wall might seem like a small part of your remodeling plan — but it’s often the most important. Whether you’re updating a split-level in Willow Grove or renovating a rowhome in Roxborough, involving a structural engineer at the start protects your investment, your safety, and your future resale.
Pro Tip
“Cosmetic patching without understanding the cause is like painting over rust — it doesn’t solve the problem. Always start with structure first.”
Thinking about opening up your floor plan?
Call Structure Professionals before the first hammer swing. We’ll help you open your space — without opening a structural can of worms.
Frequently Asked Questions
Q: How do I know if a wall is load-bearing?
A: While some general indicators exist — such as walls running perpendicular to joists or located near the center of the home — the only way to be certain is to have a licensed structural engineer evaluate your home’s framing. Guessing based on appearance can lead to serious structural damage.
A: While some general indicators exist — such as walls running perpendicular to joists or located near the center of the home — the only way to be certain is to have a licensed structural engineer evaluate your home’s framing. Guessing based on appearance can lead to serious structural damage.
Q: Can I remove a load-bearing wall without an engineer?
A: Technically, yes — but it’s extremely risky. Removing a structural wall without properly redistributing the load can result in sagging ceilings, cracked walls, uneven floors, and long-term structural damage. An engineer ensures the home remains safe and code-compliant.
A: Technically, yes — but it’s extremely risky. Removing a structural wall without properly redistributing the load can result in sagging ceilings, cracked walls, uneven floors, and long-term structural damage. An engineer ensures the home remains safe and code-compliant.
Q: Do I need a permit to remove a wall in Philadelphia or its suburbs?
A: Yes, most municipalities in the Philadelphia area — including the city itself — require a building permit when removing or modifying a load-bearing wall. Permits often require stamped structural drawings, which a licensed engineer can provide.
A: Yes, most municipalities in the Philadelphia area — including the city itself — require a building permit when removing or modifying a load-bearing wall. Permits often require stamped structural drawings, which a licensed engineer can provide.
Q: What does a structural engineer do during a wall removal project?
A: The engineer will assess your home’s structural system, determine which walls carry load, and design a replacement support system using beams, posts, or footings. They can also provide stamped drawings for your contractor and help navigate local permit requirements.
A: The engineer will assess your home’s structural system, determine which walls carry load, and design a replacement support system using beams, posts, or footings. They can also provide stamped drawings for your contractor and help navigate local permit requirements.
Q: Can I tell if a wall is load-bearing by checking the attic or basement?
A: Sometimes — unfinished basements and attics can expose joist direction and bearing points. But not all homes follow predictable framing rules, especially if they’ve had previous renovations. A visual inspection helps, but only a licensed structural engineer can confirm load paths with certainty.
A: Sometimes — unfinished basements and attics can expose joist direction and bearing points. But not all homes follow predictable framing rules, especially if they’ve had previous renovations. A visual inspection helps, but only a licensed structural engineer can confirm load paths with certainty.
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