So we decided that it would be an 8 foot by 15 inch shunting layout, so we sourced two 4 x 2 foot Sundelea boards and some 2 x 0.5 inch lengths of pine ( Pic1 ).
There would be two frames like this ( Pic2 ), that the Sundelea board would sit on top of.
The frames would be screwed together at the corners ( Pic3 ) and the Sundelea screwed onto the top ( Pic4 & Pic5 )
This gives the frame strnegth and rigidity. The joints can be glued as well for extra strength.
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