The beam material affects more than strength. It can change the ceiling line, the size of the supporting posts, how the member gets into the house, and how the finished room looks. Have the engineer establish the safe options, then compare those practical differences.
A beam that will be concealed needs a different finish budget from one intended to remain visible. Include access, temporary support, connections, and any work beneath the posts in the comparison.
What decides the beam material?
- The complete load path: what the beam supports, where its posts land, and whether the structure below can carry the new point loads.
- Available depth: a dropped beam changes the room; a flush beam changes the framing and connection work above it.
- Access and handling: length, weight, stairs, doors, windows, neighbouring houses, and safe lifting space all matter.
- Connections: joists, posts, hangers, bolts, welds, and bearing details are part of the engineered design.
- Finished appearance: concealed, drywall-wrapped, exposed wood, or exposed painted steel.
- Moisture, fire, and durability: the assembly must suit its location and the approved building design.
Toronto lists adding or removing walls as structural or material work that can require a permit. Its interior-alteration guide also asks for drawings that show structural framing and construction details. Outside Toronto, confirm the process with the local building department; Ontario's building-permit guide explains the municipal role.
How do LVL, steel, and glulam differ?
| Material | Often useful when | Plan for | Typical finish |
|---|---|---|---|
| LVL | A straight engineered-wood beam suits the design and site assembly is helpful | Multiple plies, fastening, moisture protection, bearings, and approved holes or cuts | Usually concealed or wrapped |
| Structural steel | Depth, stiffness, connection geometry, or the engineer's load-path design points to steel | Shop drawings, fabrication, lifting, corrosion and fire protection, and trade coordination | Concealed, wrapped, or deliberately exposed |
| Glulam | An engineered timber beam works structurally and exposed wood is part of the design | Appearance grade, handling, moisture protection, connections, and finish samples | Usually exposed |
When does LVL make sense?
LVL is laminated veneer lumber: thin wood veneers bonded into a predictable structural product. Weyerhaeuser's official Microllam LVL information notes that built-up members can be assembled on site, which may help when one large member cannot travel through the house.
It is a sensible option when the engineer's design works with available products and a concealed or wrapped beam is acceptable. Do not drill, notch, trim, or improvise connections from a generic online chart. The manufacturer literature and sealed design govern the actual member and installation.
When does structural steel make sense?
Steel may be the engineer's preferred option when the design needs a different depth, stiffness, connection, or load-path solution than the practical wood options provide. It can also work as an intentional exposed feature. The beam still needs engineered posts, bearings, connections, and support below; a stronger beam alone does not establish that the structure below can carry it.
Ask who is producing the shop drawing, who is fabricating the member, how it enters the building, what lifting plan is required, and how it will be protected and finished. The Canadian Institute of Steel Construction maintains Canadian steel-design and fabrication resources, but the project engineer's documents remain the instructions for your house.
When does glulam make sense?
Glulam is made from wood laminations bonded together in parallel. It can carry structural loads while looking like finished timber, which makes it worth discussing when the beam will remain visible. Nordic Structures describes its Nordic Lam glulam as a beam-and-header product available in different sizes and appearance options.
Confirm the appearance grade and finish before ordering. A structurally acceptable industrial surface may not match the clean furniture-like beam someone pictured from a tiny mood-board photo. If the beam will disappear behind drywall, the visual benefit disappears with it.
What should you ask before approving a beam?
- Which options are actually approved by the structural engineer?
- Will the beam be flush, dropped, exposed, or wrapped?
- Where do the posts and point loads land, and has the structure below been checked?
- Are hangers, plates, bolts, welds, fire protection, and temporary support included in the documents and scope?
- Can the member reach its final position safely, or does access change the choice?
- Who updates the permit drawings if the material changes after submission?
If the opening is still an idea, start with when to hire a structural engineer and the load-bearing wall removal guide. Once the design is settled, our framing and structural service can price the approved scope instead of guessing at a beam from across the room.
