Super King Air 300
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 98; Flight Crew Total 5316; Flight Crew Type 1479
Situational Awareness; Training / Qualification
Ground Event / Encounter Object
Aircraft Aircraft Damaged
Human Factors
I was taxiing to [the FBO] in [a] King Air. We pulled onto [FBO] ramp and I saw our marshaller; who was standing under the canopy on the opposite side; waving for us to park under the canopy. I pulled straight in and centered the aircraft on the marshaller as he guided us in. I did not notice if there was another marshaller to my left but I know there wasn't one to my right. As we approached the canopy; he was giving us the 'pull forward' signals. Both pilots were watching the marshaller as he marshalled us in. As he was giving us the signals; the aircraft came to a sudden stop and veered to the right. We looked out the right window to realize that we had struck the first support beam of the canopy. I looked back at the marshaller who now had his batons in a X with his head hanging down. He was also receiving a pat on the shoulder from a fellow lineman as in a 'Sorry this happened. It will be ok' pat. I shut down the aircraft and asked if the passengers were ok. We then proceeded to exit the aircraft. I feel that I put too much faith in the Marshaller that he would verify that my aircraft was clear of all structures. If I would have requested the co-pilot to make wing tip clearance reports; we may not have hit the canopy. I also feel that if another marshaller would have been on my right side then that may have prevented this incident. [This FBO] may want to consider not parking aircraft so close to the canopy supports.
BE-30 Captain reported his wingtip struck a beam during taxi in under the guidance of a marshaller.