Camping Tents search results on ebay.

If you are looking to buy a tent online try visiting a sporting goods store to get an idea of what size tent you would like. They always have a variety of sizes set up. Note the dimensions and features and then look for those on ebay when choosing a tent.

As far as size is concerned you will need room for everyone plus their gear. When a manufacturer claims the tent is for 3-4 or 5-6 people a good rule of thumb is to add more space for both the bodies and the gear.

As far as weather proofing is concerned a little more money spent can be worth it in the long run. Look for tent seams that are sealed (taped) and double sewn. Also, make sure your tent comes with a rain fly that extends to the ground. The extra expense for water proofing will be worth it not just for comfort but keeping the inside of your tent dry will prevent a musty smell from developing over the years and stronger seams and zippers will last longer. One seam or zipper that goes bad can ruin a tent, unless you want to do repairs.

After you figure the space you need and the money you want to spend on weather proofing you will need to consider features when choosing a tent. A tent vestibule( porch) can be very handy for taking muddy boots off before you go to bed and the extra storage space. Finally, for a tent that is useful in warm weather and cold choose one that has mesh flys that will allow ventilation when the rain fly is removed for warm weather.

Of course, everything mentioned so far is in regards to choosing a tent for casual family camping. Backpacking with a tent will involve all kinds of considerations related to weight and extreme conditions, that's another article though!