Over the years a number of the Williamsbubb "Shops" have been converted from paintings on cardboard to more durable canvas on wooden frames. Here is the general process and dimensions for making the frames. There are two sizes of frames for larger or smaller "shops." The most recent were built in 2013 and 2014. The pictures below show most of the process and here is a link to the Bill of Materials and Assembly instructions in Excel format: Williamsbubb frames.xlsx.
Rick Van Mell
vanmells@ix.netcom.com
2/16/14