Help! Please. Stretcher strips bowing.
I just stretched a canvas on 60" x 60" heavy duty strips. I thought I would get away without putting a bracer bar in it. Dumb, me! I applied the acryilic gesso and now the strips are bowing inward. What's the best way to fix this? Should I unstaple two sides and restaple? Seems like it would be too loose. I can't think of any other way. Help, please.
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