The Derwent and McArthur framing offered by Alspec is the ultimate way to set your home apart from the rest. The 76mm Derwent is perfect for residential application as it will allow your windows to stand out against standard residential frames while easy integration with the Viewmax Sliding and 443 awning means you don’t have to compromise on functionality. The 101.6mm McArthur frames give any house, office or store front a clean modern look. This series can easily be integrated with swinging and sliding doors as well a sliding, awning/casement and double hung windows to give the ultimate cross between looks and functionality. Available in both single and double glazed, Derwent and McArthur framing system will be able to meet the toughest of performance requirements.