Trevor Penning is a massive mauler with length who can bolster a team's left tackle position at the next level. He has an excellent first step in both run and passing sets combined with great athleticism and length. His time as a three-sport athlete in high school (football, basketball, and track) shows on his tape, where he displays quick feet and the ability to recover his leverage quickly while using his length, making it difficult to beat him around the edge. He has a solid anchor; defenders have a hard time moving Penning at the point of attack.

He is an excellent run blocker, and he works hard on every play to push his man off the football. He plays with good range, and quick feet, has zero problems getting to the second level, and displays good lateral quickness for a 6-7 320 player. He needs to improve his hand placement; he can get caught with his levers pinching too far outside when he loses leverage. Improvement in his bend at the knees will help him exert more force at the point of attack.