Intrim is a manufacturer of decorative timber mouldings, skirting boards, architraves and handrail systems helping interior designers, architects, builders and developers make their interiors spectacular. Intrim has evolved to service a wide and ever growing range of valuable clients. Our team is committed to provide you with unparalleled service and advice on your requirements to make the creation of your interior a reality. Making Interiors Spectacular. This is the reason for our very existence and one which we are passionate about.