Incoming ball: floor, then enclosure
If an opponent’s rally shot hits your wall or fence before touching your court, they lose the point. If it first bounces in your court, then hits the enclosure, you can return it before its second ground bounce. A wall contact is not itself a ground bounce.
Outgoing ball: it must reach their floor first
Your return must bounce in the opposing court before striking its enclosure. You may use your own wall to send a ball over the net under the correct-return rule; striking your own metallic fence with the ball is not the same permission. For a first game, learn the normal direct return before trying difficult rebounds.
The serve is an exception worth remembering
A correctly landed serve that then hits the receiving metal fence before a second bounce is a fault. A serve that reaches glass after the correct first bounce can remain playable. This is why “all walls are in” is an unreliable summary.
Do not chase a ball outside by default
FIP allows out-of-court play only under authorized facility conditions. A professional highlight is not permission to sprint through the doorway at your club. Follow the operator’s safety instructions.
Count floor bounces, not wall contacts
Imagine a ball lands once near the back of your court, touches the back glass, then the side glass. Those wall contacts do not themselves use up a second floor bounce. You can return the ball if it remains playable and you reach it before the next ground bounce. If it lands twice on the floor before you hit, the point is over even if it never reaches the wall. That is the useful first distinction when the ball ricochets through a corner.
Your own glass and your own fence differ
You may use your own wall to return the ball into the opposing court under the correct-return rule. For example, an emergency shot can go from your racket into your back glass, over the net and then onto the opponents’ floor. But hitting your own metal fence with your outgoing ball loses the point. Nor may the ball bounce on your own floor after you strike it before reaching the other side. Learn a direct return first; the permission to use glass does not make every rebound legal.
Read the pace before choosing to wait
The LTA’s beginner guidance recommends preparing early and judging how far an incoming ball will come away from the glass. A faster deep ball may rebound far enough for a controlled return, while a slower ball can stay low and close to the wall. Do not wait in one fixed spot for every shot. For a first exercise, use gentle feeds with a partner or coach and focus on recognising floor, glass and next floor contact before adding attacking pace.
A boundary example that changes on the serve
In an ordinary rally, a ball lands in your court and rebounds from the metal fence: play can continue before the second floor bounce. If the identical floor-and-fence sequence happens on an otherwise correctly placed serve, it is a service fault. If the served ball hits glass instead of fence, that contact alone does not make it a fault. Keep the serve exception separate rather than memorising the misleading rule that every wall is always in.