Okay kiddo, a chardak is like a house, but it's made mostly of wood and it's usually in a place that's really hot and dry, like Afghanistan.
The chardak is built on tall wooden stilts so that it's up off the ground and there's cool air circulating underneath it. The roof is usually made of a bunch of different layers, with straw and mud on top to protect against the sun and rain.
Inside the chardak, there are usually different sections for different things - like a place to cook, a place to sleep, and a place to sit and talk with friends and family.
People have been building chardaks for a really long time, because they're really good at keeping people cool and comfortable in hot, dry places.