"The continued execution of the company strategy through the financial year has positioned Steel & Tube well, creating strong foundations as shown by the year's performance in spite of the challenges of low global steel prices and questions around some product quality," said chief executive Dave Taylor.
"Despite the headwinds we've experienced and particularly in the second half of the year, our results demonstrate our resilience and ability to continue delivering sustainable value."
Net profit rose about 21 per cent to $25.8m, helped by a $6.4m gain on the sale of Steel & Tube's Bowden Rd property in Auckland.
The company will pay a final dividend of 13.5c on September 30, up from 10c a year earlier, lifting total payments for the year to 22.5c from 19c.
Taylor said the company remains "in a challenging global steel environment" but steel prices "are firming both domestically and globally".
The company's shares closed up 9c yesterday at $2.19. They are rated a 'hold' based on the consensus of three analysts polled by Reuters with a median price target of $2.20.
Steel & Tube - Year ended June 30
• $516m sales, up 3 per cent
• $25.8m net profit, up 21 per cent
• $19.4m underlying profit
• 22.5c total dividend, up from 19c.