For the builder I have a number of sheets of high quality Finnish and American Plywood plus several sheets of 1 inch (25mm) balsa. Pointless to photograph so I haven't bothered. Not looking at anything like retail prices and it would be much better for collection as carriage/postage may not be practical. Do feel free to contacted me via email to discuss price and availability.

2 X 2.00mm Lightply 24"in X 12in
1 X 0.4mm X 930 X 300
1 X 0.4mm X 1120 X 300
1 X 0.4mm X 1270 X 300
1 X 0.8mm X 990 X 200
1 X 0.6mm X 1140 X 600
1 X 0.8mm X 1270 X 600
1 X 1.2mm X 970 X 530
1 X 1.6mm X 970 X 520
1 X Midwest 1/32 X 48in X 12in

4 X 1in X 3in x 36in Balsa
2 X 1in X 3in X approx 32in Balsa
All the balsa is of nice lightweight not rock hard stuff.