Document Downloads Our downloads section contains a selection of documentation and forms you may find useful in calculating your requirements. All documents come in PDF format. Files require Adobe Reader to be viewed. Download documents using the links below. Documents: T&F Components Data Sheet (DF6) Design Brief Form (DF2) Calculation Sheet (DF7) Terms & Conditions (AF1) General Fire Precautions (HSE Extract) IDH Company Brochure Temporary Works Forum Information Design Check Liability Developer Scaffold Procurement Report Urban Wind on Temporary Structure Construct Yearbook 2016 Site Induction Guide to Temporary Works (TWf)