John Cartmell wrote:
I'm hoping to produce a frame for some display material. My initial plan is to
produce a square 'tower' about 900mm square and approx 1800mm high -
effectively two 900x900 frame cubes - strong enough to carry a light notice
board on each of the four 'faces'.

I'm thinking of making the frame from aluminium square section (1cm square?)
joined with plastic fixings - square equivalent of the sort of fixings you get
for gazebos/markees. The construction needs to be set up and dismantled in
minutes, be light, and be constructed of materials that can fit in the back of
a car. And it needs to be low cost.

NB Using the design described I'd need 20 lengths of aluminium section 88cm
long (having them all the same size helps fast construction) and 12 fixing
pieces.

Q. Am I likely to be able to get such aluminium section and plastic fixings?
Where?

Any help would be appreciated.

how about, two square frames, fixed to, two boards hinged in the centre,
on opposite sides to form the 'frame, then some kind of support between
the two hinged boards to stop them migratingthen just use got to figure
out the other two sides?

p.s how big's the car?