Steel Vs Wooden trusses

When it comes to roofing for your free house plan, the choice of truss material is critical to the longevity, strength, and overall performance of the structure. Two common options are steel trusses, typically made from angle iron, and wooden trusses. In this in-depth article, we will delve into the differences between these two choices, while highlighting their respective advantages and disadvantages.


Wooden Trusses:


Wood has been a traditional choice for roofing trusses for centuries, and it continues to be popular for several reasons.


Advantages of Wooden Trusses:


Strength and Durability: Wooden trusses are renowned for their strength and durability. When properly constructed and maintained, they can last for decades or even longer. Wood's natural resistance to corrosion makes it a favorable option in regions with high humidity or salt exposure.


Aesthetics: Wooden trusses lend a timeless, rustic charm to a structure. They are favored in architectural designs that aim for a traditional or classic appearance.


Insulation: Wood naturally provides insulation, helping to regulate indoor temperatures and reduce energy consumption. This can lead to cost savings in heating and cooling.


Eco-Friendly: Wood is a renewable resource, and responsible harvesting practices can make wooden trusses an environmentally friendly choice.


Disadvantages of Wooden Trusses:


Maintenance: Wooden trusses require regular maintenance, including sealing against moisture and inspecting for termite damage or rot. Neglecting maintenance can lead to a shorter lifespan.


Fire Risk: Wood is susceptible to fire, which can be a concern in areas prone to wildfires or in buildings with specific fire safety requirements.


Steel Trusses:


Steel trusses, often constructed using angle iron, offer an alternative to wood with distinct advantages and disadvantages.


Advantages of Steel Trusses:


Strength and Stability: Steel trusses are exceptionally strong and can support heavier roof loads than wooden trusses. They are less prone to warping or twisting, ensuring structural stability.


Low Maintenance: Steel trusses require minimal maintenance. They are resistant to pests, rot, and decay. Properly coated steel can also be highly corrosion-resistant.


Longevity: High-quality steel trusses can last for generations, often outlasting wooden trusses.


Fire Resistance: Steel trusses have excellent fire resistance, making them a preferred choice in areas with strict fire safety regulations.


Disadvantages of Steel Trusses:


Cost: Steel trusses, especially those made from recommended angle iron, can be more expensive upfront compared to wooden trusses.


Weight: Steel trusses are heavier than wooden trusses, which can require additional structural support and increase construction costs.


Aesthetics: Some people find the appearance of steel trusses less appealing than the warmth and character of wooden trusses.


Environmental Impact: The production of steel involves significant energy consumption, and recycled or substandard steel may have impurities that affect its longevity.



The choice between steel and wooden trusses for roofing depends on various factors, including budget, environmental considerations, and local building codes. While wooden trusses offer timeless charm and insulation benefits, steel trusses excel in strength, longevity, and fire resistance. Ultimately, the key is to select the material that aligns with your specific project requirements and long-term goals. Investing in quality materials and proper installation and maintenance are essential steps toward ensuring a durable and reliable roofing structure, regardless of the chosen truss material.