Patios Perth - Highline. From patios, garages and garden sheds, commercial and industrial, farm sheds and water tanks, and fencing; \ \ Highline builds whatever the customer needs. \ Highline builds it strong to make it last.\ \ \ Big or small, and for any purpose, Highline builds whatever the customer needs. From commercial and industrial, farm sheds and water tanks, garages and patios, garden sheds and fencing. Highline builds it strong to make it last.\ \ \ There are many standard designs, or Highline can tailor-make a building to suit you. That means any combination of open or closed bays, roller or sliding doors, skylights or shelving. Through its development of the parallel chord-web truss system, Highline has been able to design and build economical sheds with clear spans of up to 50 metres.\ \ Design and manufacture is carried out at the company\'s Welshpool premises, and there are branches and agents throughout Western Australia. Highline is Quality Assured to ISO9001.\