Windows, Doors & Stairs Windows John Williamson Joinery produce a variety of quality windows in both Softwood (Baltic Pine - Pinus Sylvstris) and Hardwood (Utile, Iroko etc). Styles range from ... Period, Casement, Box Frame, Box Sash, Pivot Georgian, Victorian, Margin Bar, Oriel etc, some examples are shown on this page. All of our windows are made to suit your glazing requirements - single, double or triple glazed. Doors Made to any style, in softwood or hardwood. All our doors are morticed, tenoned, wedged and cross dowelled, and made to your exact glazing requirements. Stairs John Williamson Joinery design and manufacture both standard and bespoke staircases to meet your specific requirements. Available in any timber. Here are some examples of the windows and doors which we have created, please click on the thumbnail to see a larger image.