Can you install a portable hardwood basketball court over an existing sports floor?
Yes, in some cases, but only after confirming that the existing floor and the portable system are compatible. The base must be sufficiently level, clean, dry, stable, and capable of supporting the combined loads without damage or unacceptable movement.
The project team should assess load distribution, dimensional clearances, transitions, doors, equipment, and the risk of trapping contamination or moisture between surfaces. A suitable intermediate or protection layer may be required, but it must be approved for both floor systems and must not create instability. Existing game lines, resilient movement, local damage, or uneven joints can also affect the finished portable court.
Do not assume that any sports floor is an acceptable substrate. The portable court manufacturer, existing-floor supplier, facility operator, and qualified installer should approve the planned build-up and handling procedure. A site survey and trial assembly can help identify tolerance, access, and protection issues before the full court is installed.