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The title compound, [Sn 2 (C 4 H 9 ) 2 (C 12 H 20 ) 2 ], has two 1-stannacyclo­penta­diene skeletons related by inversion symmetry located at the mid-point of the Sn—Sn bond [2.7682 (2) Å]. Thus, the asymmetric unit comprises one half-mol­ecule. The planarity of the stannacyclo­penta­diene ring is illustrated by the dihedral angle of 0.3 (1)°, defined by the C 4  and C—Sn—C planes. To avoid steric repulsion, the two stannole rings are oriented in an  anti  fashion through the Sn—Sn bond. These structural features are similar to those of other bis­tannoles.

1,1′-Di-tert-butyl-2,2′,3,3′,4,4′,5,5′-octaethyl-1,1′-bistannole