I concur mostly with Jorn and CJ.  Here is a FWW article by Michael Fortune that checks all of the boxes; I have followed his guidance with good success bending ash and cherry for shaker boxes and trays.

I found that controlling the temperature is key.  For this reason, I would be concerned about Jorn's setup; a lot of potential energy leakage.  I made a wooden box and put a cooking thermometer in the top of it with the tip in the zone where the strips to be bent would be.  It's amazing how little things lower the temperature and that really affects how the wood responds; when it's at 200-210 F, quartersawn ash and cherry are plasticized.  They also lose their plasticity very quickly as they cool so speed in getting them on the form is critical.

I also use a wallpaper steamer...similar to Jorn's and it works great with the box of 3/4 CDX plywood that I made.  Be sure to use stainless fasteners; in my first version I tried some weather resistant decking screws...rusted immediately and stained my project.

sjs

Hey Gerry, I've bent WRC before and I've found it's a pain. It's more brittle when bending. I'm not 100% to why that is the case as I don't do a lot of stem bending. Maybe due to it being a softwood, or maybe since cedar is more prone to cell collapse? Dunno. My success with steam bending cedar has come from ripping to narrow laminations and gluing it together. I also experience a lot of spring-back. So gluing laminations together really helped with that. Give me a call to discuss if you'd like.

CJ

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