If you have no access to a gym, then here are some powerful pec workouts that you can do at your home. You only need a pair of dumbbells and a bench (No fancy equipments required!)
Flat Dumbbell Bench Press
Flat dumbbell bench press is an alternative to barbell bench press. It works mainly on the middle pecs and very easy to perform in your own house. The only drawback to this is, for some people they find it difficult to lift much heavy weights using dumbbells. (But for me, Its easier to lift more weight on dumbbells rather than barbells)
Here is the video instructions - Middle Pec Workouts
Incline Dumbbell Bench Press
Incline dumbbell bench press is an alternative to the incline barbell bench press. It works mainly on the upper pecs, and it is one of the most powerful exercise for the upper pecs.
Here is the video instructions - Upper Pec Workouts
Decline Dumbbell Press
Decline dumbbell bench press is an alternative to the decline barbell bench press. Decline dumbbell presses works mainly on the lower pecs. It is a very powerful exercise for those who lacks lower chest.
Here is the video instructions - Lower Pec Workouts
Flat Dumbbell Flys
Dumbbell flyes are one of my favourite chest exercises. Flat dumbbell flyes helps you to improve mainly the middle chest. Be sure to do enough warm ups before doing this movement.
Here is the video instructions - Dumbbell Fly's
Incline Dumbbell Flyes
Incline dumbbell flyes are done similar to flat dumbbell fly's but the only difference is that, it is done on an incline bench. It helps to build the upper chest muscles.
Here is the video instructions - Incline Dumbbell Flyes
Decline Dumbbell Flyes
Nothing much to say about this exercise as it is performed the same as flat and incline dumbbell flyes with the only exception, which uses a decline bench. This exercise is done to build lower chest muscles.
Here is the video instructions - Decline Dumbbell Flyes
Parallel Bar Dips
Parallel bar dips are performed with your body weight. You can also hold a dumbbell between your legs to do this movement if you are an advanced lifter. Dips works mainly on the lower pecs and triceps.
Here is the video instructions - Parallel Bar Dips
Straight Arm Pull Overs
Straight arm pull overs helps to build pectorals and expand the rib cage. Arnold Schwarzenneger has described it as the 'best movement for expanding the thorax as well as working the pectorals and building up the serratus anterior muscles.' on his book Encyclopedia Of Modern Bodybuilding.