Dry-fit S-and-drive before final install

Before you start

• Define exactly what the mock-up is checking: route, dimensions, fitting orientation, joint access, appearance, or coordination.
• Use temporary hardware only where it will not damage the final locks.
• Do not apply final sealant until the layout is approved.

Lay it out

1. Mark control lines, elevations, and reference dimensions.
2. Label each temporary piece and fitting orientation.
3. Check all nearby trades, access zones, insulation allowance, and support locations.

Set and support it

1. Use safe temporary supports that hold the assembly at true final elevation.
2. Do not balance a mock-up on ladders, ceiling grid, or other trades.
3. Keep the assembly stable enough for accurate measurements.

Make the connection

1. 1

   Fit S-cleats and start short temporary drives only far enough to hold the pieces.

2. 2

   Set the mock-up on the planned route.

3. 3

   Verify clearances, centerlines, fitting takeoffs, access, and final endpoint.

4. 4

   Record required changes with dimensions and photographs.

5. 5

   Disassemble carefully without tearing reusable locks.

6. 6

   Complete final fabrication and reinstall with full drives, sealant, and permanent supports after approval.