DOORS

BIFOLD
http://www.bifold.com/

http://www.bifold.com/photo-of-the-day-wykoff.php

Wycoff Exchange
http://inhabitat.com/abandoned-warehouse-tranformed-with-movable-steel-facade/wycoff-exchange-3/

PIVOT larissa sand pivot doors 
link

http://design-milk.com/12-patio-pivot-doors/

SLIDING
images

BUTTERFLY DOORS
http://inhabitat.com/laser-cut-butterfly-door-allows-natural-light-into-londons-hidden-house/

http://www.lambo-doors.net/2010/06/22/custom-bolt-on-lambo-door-hinges-of-the-month-1996-geo-tracker-scissor-doors-inc/