J/133 main salon includes a complete J shaped galley and navigation station with full length settees in the main saloon and plenty of storage compartments. Interior finish is varnished cherry wood throughout with cherry battens on the hull in the main saloon and vinyl lining on the hull in sleeping cabins.

The standard layout offers three sleeping cabins and a dual entry head forward, a second head can be substituted for the aft port cabin. This option allows for a large storage area aft of the head, accessible through both the head (belowdecks) and from the port side cockpit storage locker. Space for a generator and additional systems is located in the chaseway area aft of the engine.