Tumu Timbers ITM has bought Total Building Solutions thanks to a hot property market.
Renamed Tumu Frame and Truss, Tumu managing director John O'Sullivan said its capacity was being expanded to meet increasing building activity.
"They were our frame and truss suppliers for many years and we wish to focus its operation on that."
The Omahu Rd business will no longer sell general building supplies, with its stock transferred to Hastings, Havelock North and Napier Tumu ITMs.
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"When people come to a Tumu ITM store they expect the full range of supplies so we didn't want to confuse customers. The renaming will add clarity to that."