Here are Yes4All Silencer Drop Pads designed for weightlifters. These are made of high density foam to absorb and diffuse the noise and vibration that comes with dropping heavy barbells. Each pad comes with a carry handle. This weightlifting pad measures 30 x 24 inches, so it has plenty of room for you to drop your weights.
These weightlifting drop pads have max load capacity of 400lbs. You can find out more about it here.