The development of design guidance for inflatable structures requires the availability of robust predictive mechanical models for the carcass fabrics. This project seeks to contribute to this topic area, and uses non-contact strain measurements to investigate and develop improved predictive mechanical models for woven fibre-filled, elastomeric carcass fabrics of different fibre architectures. Verification of finite element derived simulations of the fabrics is investigated using uniaxial, biaxial and shear test methods.