Complex sentence: Because of the number of visitors, in 1958 the wooden "tub" ("Bütt ") was built, likewise an oversized tub, which was constructed in the same style as the"Riesenfass" and has space for about 120 guests.
Split into simpler sentences: Because of the number of visitors, in 1958 the wooden "tub" ("Bütt ") was added. This is an oversized tub, constructed in the same style as the"Riesenfass" and has space for about 120 guests.