A Tee hangar is a type of enclosed structure designed to hold aircraft

Aircraft

An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 in protective storage. Typically constructed of metal, they are primarily used for private aircraft at general aviation

General aviation

General aviation is one of the two categories of civil aviation. It refers to all flights other than military and scheduled airline and regular cargo flights, both private and commercial. General aviation flights range from gliders and powered parachutes to large, non-scheduled cargo jet flights...

 airport

Airport

An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...

s because they are more economical than rectangular hangar

Hangar

A hangar is a closed structure to hold aircraft or spacecraft in protective storage. Most hangars are built of metal, but other materials such as wood and concrete are also sometimes used...

s. There are two types of Tee hangars: nested and standard (sometimes referred to as stacked).

Nested Tee hangars require less building material than standard and are wider but shorter, thereby reducing the length of taxiway required to abut the building. The disadvantage is that rolling doors cannot be used.

Standard Tee hangars provide additional storage area and can use rolling doors. This type of hangar is also known as T-hangar, T hangar and Tee-hangar.