large box frame advice needed

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johnnymachin
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large box frame advice needed

Post by johnnymachin »

I've got to make a very large box frame for an antique kimono. The outside frame is to measure 1920mm(width)x1820mm(height).
Can anyone suggest the best type of board to use? I have to wrap the board in fabric(for sewing onto)and hang the Kimono.
I'm having trouble finding any boards this big-I was thinking of using foam board to keep the weight down but can't find any big enough.
Any advice appreciated.Cheers,Johnny.
silvercleave
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Re: large box frame advice needed

Post by silvercleave »

Hi Johnny

If you want to use foam board, as it is being covered try laying 2 sheets edge to edge and join with glue.

I have used foam board on several projects and just used wood glue

Ian
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prospero
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Re: large box frame advice needed

Post by prospero »

If you want a big foam board, try splicing 5mm as Ian says. You will probably not get a piece that size with just one join. So do two layers - make another the same, but make sure the splices don't coincide. That piece is almost square, so have the second layer with the splices going 90deg to the fisrt.
Then glue the two together to make a 10mm thick sheet. The splices will be reinforced by the continuous piece on the other layer. If that makes sense. :) Having a big flat area to work on makes it easier, but that goes for all oversize jobs.

That should form a nice stable board. If you glue the fabric to it there is the possibility that the board will curve when the glue is dry. Hopefully not too much. But it's not a bad idea to construct a subframe with cross bars to support the back board. (Check out the Big Jobby thread in the Good, the Bad and the Ugly section). This will add a lot of strength to the job and hold the backboard flat. Essentially, it will form part of the backboard and be the main strength of the frame. Also gives you the option of hanging the thing from the subframe. The whole job is going to be HEAVY. This way you don't have to make the outer frame (box) massively chunky to support the weight.
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johnnymachin
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Re: large box frame advice needed

Post by johnnymachin »

Thanks for the advice. I will get cracking tomorrow.
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