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Wall Panel Construction

(inside to outside)

  • Airtight layer (15mm Egger OSB top)

  • EcoBox Studs - 260mm

  • Woodfibre Insulation - Air Injected.

  • Breathable External Sheathing (15mm Egger DHF)

  • Breather Membrane

  • Overall Buildup Thickness - 290mm 

U-Value = 0.14 W/(m2K)

Wall Buildups - 3D View - 260mm Axo_edited.png

260mm Ecobox 

Section Detail 

Cross Section through typical construction buildup 

The 260mm EcoBox wall system is a high-performance timber frame solution developed for projects where energy efficiency, comfort and long-term building performance are key priorities. The deeper structural zone allows greater levels of insulation to be incorporated within the wall panel, creating a highly efficient building envelope while maintaining a simple and coordinated construction approach.

Built around the engineered EcoBox stud and filled with blown woodfibre insulation, the system significantly reduces thermal bridging and can achieve U-values of approximately 0.14 W/m²K. This level of performance makes the 260mm system particularly well suited to Passivhaus, low-energy homes and projects aiming to exceed current Building Regulations requirements.

By integrating structure, insulation and airtightness within a prefabricated panel, the system delivers improved build quality, reduced site complexity and greater certainty during construction.

Field House Close_Buildups - Sheet - HYM 06 - Ecobox 260mm Section.jpg
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