Welcome to the garage door installers site , we offer this free information with the permission of all the manufacturers listed and includes - Cardale Doors , Henderson , Hormann , Garador , Wessex Doors , Novoferm , Marantec , Meridian , Merlin , Select and Wayne Dalton. 

We cover the technical pages of the main gear types - Canopy doors , Retractable doors , Sectional doors , Roller Doors ,Side Hinged Doors and Automation .

To obtain the pages just select the door gear type by manufacturer and the page will load in a PDF file . 

Please be patient the files are large and can take around 30 seconds to load .