The Avid Screen House HD Extended Groundsheet is a two-piece heavy-duty groundsheet set from Avid Carp, designed primarily for the Screen House XT shelter but also compatible with the Revolve Screen House. It provides a protective, durable floor layer for the main living area and an extended porch section. - Main groundsheet dimensions (cm): 295 x 295 - Porch groundsheet dimensions (cm): 265 x 87 - Total weight: 3.8kg