Shower enclosure installation should begin with the finished opening, suitable fixing support and the manufacturer's instructions. Confirm that the supplied parts match the approved layout before work starts. After fitting, check door movement, seals and the handover instructions as well as appearance.
Measure after tile, base and waterproof finishes are complete. Record out-of-plumb walls and floor slope before glass fabrication.
Hardware loads should transfer to approved backing or substrates. Coordinate drilling with waterproofing and concealed services. Do not improvise anchors at the finished wall.

A related layout to review is Z003 Diamond-Shaped Two-Fixed One-Open Shower Enclosure. Use the product page to discuss the proposed dimensions and configuration.
Adjust panels, hinges or rollers, install sweeps and sealants as specified, then test drainage and leakage under realistic use. Keep curing times and cleaning instructions with handover.
At the pre-fit check, compare the glass and hardware labels with the order and inspect accessible edges for damage. Confirm the wall support and fixing locations before drilling. At handover, operate the door through its intended travel and ask the installer to explain cleaning, adjustment and any waiting time before use. Record unresolved issues while the installer is present.

A related layout to review is Y003 Square One-Fixed Two-Sliding Shower Enclosure. Use the product page to discuss the proposed dimensions and configuration.
Do not improvise alterations to the supplied safety glass. Stop and refer a mismatch or damaged panel to the enclosure supplier. Resolve the component or measurement problem before continuing the installation.
Use the checks above to mark the unresolved items on your drawing or quotation. Send that marked-up version with the selected product reference so the next discussion can focus on the actual configuration.
Manufacturer instructions are cited as an example of the coordination required. Follow the instructions supplied for your selected enclosure.