By Lille Villa
The 654B shares its 5m by 4m footprint and 3.6m external height with the 654D, but features a different window configuration. The B suffix indicates a B6 top hinged window, a 2024 model variant that provides ventilation high on the wall rather than at eye level. That positioning is practical in a gym or workshop setting, where wall space at normal height is more useful for equipment or shelving.
At the same price and floor area as the 654D, the choice between the two comes down to how the interior will be used. The top hinged window on the 654B suits enclosed, activity focused spaces. The D variant's standard height window suits rooms where a view out matters more. Both models share the 44mm log construction, double glazing, pitched roof, and the 3.2m internal clearance that makes the 600 series distinct in the Lillevilla range.
The high mounted top hinged window is a thoughtful detail. It keeps ventilation available while freeing up wall space below for racking, mirrors, or equipment.
