What matters most when the doors are closed?
Sliding systems often use larger panes with fewer vertical divisions. If the uninterrupted view is your priority, start by comparing the glass area and interlock of the proposed design.
The best choice depends on what you want to see when the doors are closed, and how you want to use the opening when they are open.

Sliding systems often use larger panes with fewer vertical divisions. If the uninterrupted view is your priority, start by comparing the glass area and interlock of the proposed design.
Bifold panels fold and stack to create a broad opening. Sliding panels pass one another, so the track arrangement determines how much of the opening becomes clear.
Bifolds need room to swing and stack. Check furniture, patio use, steps and walkways. Sliding doors keep the moving panels within the track arrangement.
Think about taking the dog out, carrying shopping or stepping into the garden. Discuss the most convenient access panel, handles and threshold for daily use.
A minimal-looking threshold is a construction detail, not just a product choice. Finished floor levels, external drainage and exposure all need to be considered together.
Ask for the system, panel layout, opening direction, colour, glass, hardware, threshold and installation scope. Compare the complete specification, not just the headline price.