quite a big canvas

[IFGL]

just had an enquiry about printing a 40 x 240" Canvas and stretching it, my first thought is to do it in 3 parts 80 x 40" I won't have any trouble with that, but ideally the customer would prefer it in one section, assume money is no object and I can take a couple of people to assemble on site.

Any thoughts?

[Roboframer]

I've got a thought - "Rather you than me"!

I'd have to shift my CMC out of the way for that one - 20ft!

Three 80x40 stretcher frames joined together with pocket hole screws would take care of most, if not all of the vertical bracing - assuming the customer means the canvas in one section, not the stretcher!

Then diagonal braces in each corner of those three frames ..... then the actual stretching - and good luck with that!

[IFGL]

good thinking robo (why did I not think of that), I will put both suggestions to her tomorrow, assembly on site will be considerably more expensive, If she goes for that I will post a pic.

[prospero]

If you have trouble getting 10ft bars there is one sneaky way I have used, though not that big.

Get shorter ones and chop and butt join them. Then you can make them any size. (the shorter sides won't need this) But.... here's the sneaky bit . Make another set the same size, but make sure the joins are in a different place. Then screw/glue the two frames together back-to back. You need as wide a bar as you can get, but not deep as you will be doubling up the depth. And preferably with the raised lip on one side only so you can glue them together. So you get a good strong frame to which you can make cross-bars to suit. You also have double-joints on each end, so extra strength. You do have to concentrate during this procedure to make sure the end joints end up the right way round.

This may or may not work out cheaper than buying a custom milled set. Just an idea.

[Roboframer]

Just realised a problem with my brainwave, three frames joined together (or more if you wanted) is fine but you don't want the canvas touching anything but the outer edge of the whole frame, so maybe some beading around the edge after assembly?

[Kwik Picture Framing]

Beading would work, and could actually be quite a nice addition as long as you pick the beading thinking about how it would look with the whole design taken into account.