The object of the preliminary design review is the verification of the economic feasibility of a timber+concrete composite ceiling structure instead of demolition and subsequent installation of a steel-reinforced concrete ceiling. Even with data that are less than completely accurate, it will provide valuable information , since in many instances the timber+concrete composite solution of an existing floor is - by far - the most economic solution. We will examine the preliminary design review form for you free-of-charge. The more complete the answers on this form, the better we can support your planning. As a rule we will provide you within one or two working days of submission of your form with a response. Do not hesitate to contact us, should you have any question concerning the recording of the data. We will be pleased to help.