Yes. Owatrol white decking paint, supplied by Exterior Solutions Ltd, is designed for use on both horizontal decking surfaces and vertical timber surfaces such as fencing, cladding, garden screens, and timber outbuildings. The warranty on vertical surfaces is actually longer than for decking — 15 years against cracking, peeling, and flaking compared to 5 years for horizontal deck boards. This makes it a versatile choice for creating a coordinated look across an entire outdoor space using a single white paint product.