To provide a spacer which avoids the residence of cells when molding ALC (lightweight cellular concrete) panels and has its coil dia. reduced when rolled, almost without fear about its deformation as well as a spacer connection assembly.

This spacer connection assembly T is made up of spacers S, each of which has a pair of narrow and long piece parts 1, 2 with projecting strips 1a, 2a formed in the longer direction and four narrow and short piece parts 3, 4, 5, 6 connecting the long piece parts 1, 2 apart, and also has a first opening part 7 formed between the two inner short piece parts 4, 5 and second opening parts 8, 9 formed between the outer and inner short piece parts 3, 4, 6, 5. Further, so many pieces of the spacer S are connected together by projecting connection parts 10, 11, 12, 13 formed at the intermediate parts between the long piece parts 1, 2 each and thus are rolled into a coil shape.