The length of the building is 20

Architectural plan 20*10 north

Architectural plan 20*10 north

$40

Architectural plan 20*10 south

Architectural plan 20*10 south

$40

Architectural plan 20*10 south

Architectural plan 20*10 south

$40

Architectural plan 20*20 north

$40

Architectural plan 20*21 north

Architectural plan 20*21 north

$40

Architectural plan 20*11 north

Architectural plan 20*11 north

$40

Architectural plan 20*13.33 north

Architectural plan 20*13.33 north

$40

Architectural plan 12*20 South

Architectural plan 12*20 South

$40

Architectural plan 20*13.33 north

Architectural plan 20*13.33 north

$40