PA34 PILOT REPORTS RWY INCURSION AT SRQ AFTER INADVERTENTLY CROSSING HOLD LINE FOR RWY 14 LOCATED ON TXWY A.

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TAXIING FOR TKOF ON RWY 14 AT SRQ. CLRED TO TAXI TO RWY 14 AND HOLD SHORT. WHILE TAXIING; I INADVERTENTLY CROSSED THE HOLD SHORT LINE. AN ACFT ON FINAL MAY HAVE HAD TO GO AROUND. I BELIEVE I MISTOOK THE RWY ENTRANCE MARKING FOR AN ILS HOLD SHORT LINE BECAUSE OF WHERE IT WAS ON THE TXWY. THE RWY ENTRANCE IS ON THE PARALLEL TXWY; FACING A 10 FOOT HIGH BRICK WALL. MENTALLY; I DID NOT EXPECT THE ENTRANCE TO BE THERE; AND I WAS ACTUALLY LOOKING PAST THE ENTRANCE LINE TO TRY AND FIND THE RWY ENTRANCE LINE AT A POINT 90 DEGS TO THE RWY; LIKE AT MOST ARPTS. AFTER GND ADVISED ME TO TAXI BACK; I REALIZED MY MISTAKE. I THINK THIS HAS POTENTIAL TO BE A RECURRING PROB AS THE PLACEMENT IS NON-STANDARD. I FLY TO MANY ARPTS EACH MONTH; AM HIGHLY EXPERIENCED; AND STILL THIS FOOLED ME. WORKLOAD WAS LOW. THE TXWY IS SO WIDE; WHEN I WENT BACK I NOTICED THE RWY ENTRANCE MARKERS ON THE SIDES OF THE RWY WERE BLOCKED BY MY CANOPY POST AS I GOT CLOSE. PLTS DO NOT EXPECT THE RWY ENTRANCE TO BE ON A PARALLEL TXWY; FACING A BRICK WALL.