We distinguish between the two large sizes of strap hinges by classifying barn door hinges as slightly smaller than cellar door hinges.
This is an example of our cellar door hinges which is made of 10 x 100 x 1150 mm flat bar with a 20 mm dia pintle. The customer may choose from the various finial designs we have available. Time spent on good planning in advance will save a lot of problems during installation. Our advice is free and can only add to the successful outcome of the job.
Francois van Zyl