The 23-year-old has zoned in on just why opposition sides find it so difficult at Queens Park Rangers.
Rangers have been simply woeful on the road, losing a record 10 out of 10 games away from home.
But Caulker and co have fared rather better at home, where they will host Manchester United this weekend.
The reason? Well, one factor, according to the defender, is how tight the QPR pitch is, meaning opposition players end up exceptionally close to the fans.
"This United game is a big one for us," Caulker is quoted as saying by the Daily Mirror.
"At home, our form in the league has been good and we want to maintain that. The fans have made Loftus Road a hard place to come. It's such a tight pitch so you can really hear them. We've got to keep that going.
"This is a game we're looking to win, regardless of what team comes to Loftus Road."
QPR currently sit 19th in the Premier League - largely thanks to their away form - although the R's are only three points off 12th, such is the close nature of the bottom half.
Harry Redknapp's side should not look to their reverse fixture at Manchester United for inspiration ahead of this weekend's clash, though, as the west London side were swept aside 4-0 at Old Trafford.
But, at Loftus, QPR should be a completely different proposition. As Caulker says, the fans will be crucial if Redknapp's men are to get anything from the game.