Swedish builder Ockelbo will present the B21 CAB at the 2026 Southampton International Boat Show, where the 6.85-metre aluminium cabin boat is listed as a show debut. The model is not being presented as a completely new design; the significance is its appearance at Southampton as a compact Scandinavian all-weather boat aimed at owners who want to keep boating beyond settled summer conditions.
The B21 CAB combines an enclosed, heat- and sound-insulated wheelhouse with open working areas fore and aft. Ockelbo positions the boat for commuting, family use, fishing and year-round archipelago transport, making it a useful counterpoint to the open dayboats that dominate much of the sub-seven-metre market.
Insulated cabin is designed for all-season use
The wheelhouse has two sliding roof hatches, twin windscreen wipers and a standing height of 1.85 metres. Ockelbo says the sliding hatches can remain open at higher speeds, while an optional 2kW heater extends the cabin's usefulness in colder weather.
The cabin seating can be converted into a berth, and the helm has space for twin plotters. The builder also offers optional suspension seats using Öhlins Racing dampers, alongside navigation upgrades that include Simrad plotters, radar, VHF and autopilot equipment.
6.85 metres long with up to 200hp
Ockelbo lists an overall length of 6.85 metres, a 2.23-metre beam and a bare-boat weight of 994kg without engine. Maximum rated power is 200hp and capacity is six people, keeping the B21 CAB firmly within the trailerable small-boat category despite the enclosed wheelhouse.
The aluminium hull has a quoted deadrise of 22 degrees aft and 40 degrees forward. The builder offers Mercury F150, F175 and F200 installations in its performance data, although the exact engine fitted to the Southampton display should be confirmed at the show rather than assumed from the model range.
Open decks keep the cabin from dominating the boat
Positioning the cabin around the centre of the hull leaves useful deck space at both ends. Fixed benches on the aft deck provide seating and working space, while the foredeck can carry gear and gives another route for boarding, mooring and fishing.
For buyers comparing compact pilothouse boats, the B21 CAB's appeal lies less in luxury accommodation than in weather protection, durability and practical deck access. It will be on display at Southampton from 18 to 27 September, giving UK buyers a chance to assess how much enclosed-boat utility can be packaged into a hull under seven metres.