The cladding was added to a new extension on a project to convert an Edwardian cinema into a home.
The homeowners visited The Discovery Centre in Cleethorpes, which is clad in Thermowood, to check the material was suitable for their own design.
It is the second time Grimsby-based Bennetts have featured on Grand Designs, after the company’s western red cedar featured on designer Kathryn Tyler’s new home in Falmouth back in 2011.
"This is becoming a bit of a habit as I believe two further episodes in this new series highlight timber cladding that we’ve supplied," said the company’s managing director, Edward Bennett.
The company runs a specialist cladding website – www.timbercladding.net.