The ECOFLEX bunk style dog house is made of extremely durable ECOFLEX material which lasts for years. ECOFLEXis a propriety formula that incorporates reclaimed wood and plastic. ECOFLEX is 100% non toxic and does not absorb moisture. There is nothing in ECOFLEX that could harm your pets. With flow-through ventilation and being elevated from the ground with step-in design, this house is designed with your dog in mind. Can be easily painted. No tools assembly. 10 Year limited manufacturer warranty. NInternal dimensions: 39.4in. L x 28in. W x 34.4in.H. door dimensions: 16in. W x 19.5in. H. New Age Pet Composite Outdoor Extra Large Dog House in Brown | ECOH103XL-GN