The use of tunnel formwork is limited by specific design require­ments. During the design phase of a project, the type of formwork
should be determined. Without early consideration for a standard repetitive design and planning, the economic benefits of tunnel formwork cannot be achieved. There are also additional limitations that must be considered.

• High initial make-up cost.

• Requires extensive crane time.

• Requires high degree of engineering supervision.

• Takes workers a couple of cycles to become familiar with system.

• Used mainly for buildings with repetitive rooms.

• Large and different shaped rooms may be difficult.

• Site must be accessible since forms are large.

• To make the initial costs worthwhile, there should be at least 100 rooms.

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Can be used only on rooms with flat plate construction.