Changing market conditions have forced Warrnambool timber supplier Dahlsens to close at the end of the month.

Dahlsens has announced it can no longer sustain the operating costs of the Warrnambool store forcing it t close in a few weeks by the end of September.

In a statement released Thursday, it was announced that all staff at Dahlsens Warrnambool would be made redundant.

The statement said changing market conditions means that businesses need to make some hard decisions to ensure they remain sustainable in the long run.

“Over the last few years we have witnessed flat market conditions and also a change in the demographics of our customer base in Warrnambool and the surrounding region.

Management said staff would be informed about other vacant positions within the organisation and would receive assistance during this difficult time

The Warrnambool store is part of a chain of 20 stores.