The heavy door is meant to keep things out, like invaders. Also you have a better way of escaping while under attack
Unless you special order a heavy duty shower enclosure, it will do absolutely nothing to protect you from an armed home invader. Shower enclosures are basically just glass, and it's not bulletproof.
about 230 pounds
The southern part of Warwick Castle faces the River Avon, which floods during the winter making it difficult to even reach the castle in times of battle. Caesar's Tower is so tall it is impossible to scale, but the northern part of the castle is less protected. Invaders could fill the ditches outside and use heavy machinery or battering rams to enter.
To carry heavy loads
Think about your question . You live in a society that people raid and kill whole villages. It is Feudal world of who has the power. What would you build to show this is your land and your power? It would be something big, protective, and out of a heavy material to stop cannon and men. So, what was it designed to do.? You now have the answer.
Converse work shoes has the purpose of having boots that are typically designed for work or heavy outdoor use. They usually protect your feet while working. Most work boots are specifically designed for primary particular applications or uses.
If it drops it is called a portcullis.
Heavy duty.
it means vertical sliding gate that protects a castle.
A grill designed for commercial use
Trains are designed for hauling heavy loads.
Someone that is looking to download the game Chicken Invaders 3, can do so on the website Heavy Games or Big Fish Games. Each of these websites provide links to many games.