The oak panels had a tendency to move out of kilter, stretching the canvas and causing damage to the painting.
Times, Sunday Times
To create frames, he cut branches from a tree in his garden and stretched the canvas over.
Globe and Mail
He builds the stretchers, stretches the canvases, and primes them himself.
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He then stretches the canvas onto frames/stretchers which he has designed specially to take the force of stretching the canvas, which doesn't involve any cross-bracing.
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