Operating profits at the distributor were up almost 9% to £4.6m, while pre-tax profits were up slightly to £4.15m.
Lathams chairman Peter Latham said group revenue in the six months ended September 30 had grown by £7.4m to £82.2m.
He attributed growth mainly to panel products, although the timber division saw good improvement since the dip experienced in the March 2013 quarter.
"Bad debts have been below our expectations but will remain a concern over the next few months," added Mr Latham.
