This is going to be a very technically challenging job. This is a right angle sliding door – the opening panels meet at the corner. Once fully working, this frame is going to be disassembled, and ikea-like we will “flat pack” it to the install site. We then need to bring it all inside and rebuild the frame in the room. To make it harder we will need to notch the sill and head for steel posts that will meet. To re-build the frame the fixed panels need to be screwed from underneath – so once we assemble the main frame we need to raise it high enough to get underneath the frame and fit the panels in… then fit the frame…

it will all be double glazed after we fit it all (by us too).