Old bath, tiles, and fittings — here's the size that actually fits a typical refit.
Midi skip (4 yd³)
An old bath or shower tray, tiles, a toilet, sink, and some minor rubble from tile removal is the standard load for a single bathroom refit — a midi skip covers this comfortably.
Ceramic tiles and any wall rubble add weight fast even in a small space. If you're stripping a large or double bathroom, consider sizing up to a builder's skip.
Old baths, toilets and sinks are accepted in general skips in most cases — just confirm with your supplier if you're unsure about a specific material like cast iron.