Create a Design for sliding gate an a normal gate with rollers

Create a Design for sliding gate an a normal gate with rollers
sliding gate will be 11 foot long
small gate will be 4 foot long
roller should be 4 inch in dia
gate pillar should be compact and space saving
support for sliding gate to be shown in detailed drawing
you should use 32mm GI Tube and 65 mm GI tube for frame

Design should give high strength
less welds
low weight
and good design
height of gate is 1,5 meter
drawing should have all details regarding Pillar, Gate rollar with bearing etc