Structural Timber Prices: Cost Per m³, Grades & Building Uses
What Is Structural Timber?
Structural timber is wood that meets strict strength, moisture, and grading standards. It is used in framing, beams, joists, roof structures, and load-bearing walls.
What Affects Structural Timber Prices?
- Timber species: Softwood vs hardwood
- Strength grade: C16, C24, GL24, GL28
- Moisture content: Kiln-dried timber costs more
- Treatment level: Treated timber increases price
- Dimensions: Larger sections cost more per m³
Structural Timber Prices Per Cubic Meter
| Type | Grade | Average Price (USD/m³) | Common Use |
|---|---|---|---|
| Softwood Structural Timber | C16 | $300 – $450 | Light framing |
| Softwood Structural Timber | C24 | $400 – $650 | House construction |
| Glued Laminated Timber | GL24 | $650 – $950 | Beams & spans |
| Engineered Structural Timber | LVL | $750 – $1200 | High-load structures |
Structural Timber vs Regular Timber Prices
Regular Timber
Cost: Lower
Certification: None
Strength Testing: Not verified
Best for: Non-structural uses
Structural Timber
Cost: 20–50% higher
Certification: Graded & certified
Strength Testing: Verified to standards
Best for: Load-bearing applications
Structural timber costs more than regular timber because it is graded, tested, and certified for safety. Regular timber should never be used in load-bearing applications.
Important Safety Notice
Never substitute regular timber for structural timber in load-bearing applications. Structural timber is stress-graded, moisture-controlled, and certified to meet specific strength standards required by building codes. Using ungraded timber in structural applications can lead to catastrophic failures.
Is Structural Timber Worth the Cost?
Yes. Structural timber ensures building safety, compliance with regulations, and long-term durability. Cutting costs on structural timber can lead to serious structural failures and higher repair costs.
Frequently Asked Questions
C16 and C24 are strength classes for softwood structural timber. C16 has a bending strength of 16 N/mm² and is used for light framing. C24 has a bending strength of 24 N/mm² and is used for heavier structural applications. The grade indicates the timber has been tested and certified to meet specific strength, stiffness, and density requirements for safety in construction.
Never use regular timber for structural applications. Structural timber is stress-graded, has controlled moisture content, and is certified for specific load capacities. Regular timber may have hidden defects, inconsistent strength, and unsuitable moisture levels that can compromise structural integrity. Building codes require graded structural timber for all load-bearing applications.
Look for stamped markings indicating grade (C16, C24, etc.), species, moisture content, mill number, and certification body. Structural timber typically has visible ink stamps or branded marks along its length. The stamps provide traceability and verification that the timber meets required standards. Always check for these markings before purchasing for structural use.
GL (Glued Laminated) timber consists of multiple wood layers bonded with adhesives, offering excellent strength and stability for beams and arches. LVL (Laminated Veneer Lumber) is made from thin wood veneers layered with grain parallel, providing consistent strength properties. GL is often used for visible architectural elements, while LVL is preferred for hidden structural members requiring predictable performance.
Properly installed and maintained structural timber can last 50-100+ years. The lifespan depends on environmental conditions, treatment level, and maintenance. Pressure-treated structural timber for outdoor use typically lasts 25-40 years. For indoor applications in controlled environments, structural timber can last indefinitely when protected from moisture, insects, and excessive load stresses.
Conclusion
This structural timber price guide helps you understand costs by grade, type, and use. Choosing the correct structural timber ensures safety, compliance, and value in any construction project.