The Hartwood 5m x 4m Sandford Log Cabin, is Modern and stylish with plenty of windows to allow natural light in making the cabin a very usable and versatile extension to your living space. It\'s big enough to have a generous home office and lounge or lounge and dining area or a great leisure room for gaming, TV and hobbies. Three Felt options are available for this Log Cabin, Polyester felt without underlay, with underlay or a higher grade Polyester felt with underlay. We recommend the upgrade to Polyester felt with additional black sand felt underlay.