A solid core door helps block the transference of sound by eliminating the drum like construction of a hollow core door.
Block door from inside.
If your knob has a push lock.
120 high quality doors cad blocks in plan view.
Find the push lock or twist lock button on the inner doorknob.
Once that is complete the heavy metal mountings in to the door frame make solid and secure.
Doors elevation cad blocks.
Doors elevation 2 cad blocks.
Works well but i had to add a 3 4 wood blocks behind the bar to prevent the door from being able to opened the 1 2 and then allowing the bar to be wedged up with a narrow tool.
This should lock the door.
435 doors cad blocks.
Block the door from the inside by stuffing a sock or a similar piece of fabric under the door.
Though most interior doors are 1 3 8 inch thick exterior doors are typically 1 3 4 inch thick.
Doors plan cad blocks.
The thicker the door the better it reduces noise transfer.
Doors double doors and largue doors in elevation and plan view.
Lock the door from the inside.
138 high quality doors cad blocks in elevation view.
Even a shoe or a slipper can work if the gap is large enough.
Place a door wedge with an alarm under the door to block it.
And if someone attempts to open the door the wedge will act as a barricade.
Move a large and heavy piece of furniture in front of the door.
Most people try to block the whole door but right below the doorknob is the area that really counts.
Similar to a sock but more effective.
As with steps 1 and 2 this technique works if the door opens inward towards you.