design:  as shown in second image (19 hexagons total)
material:  solid 3/4" thick pine wood (fully sanded to a fine 220 grit and ready to finish) 
total unit dimensions:  83.125" wide x 75.75" tall x 11.5" deep 
exterior dimensions per hexagon:  17.5" wide x 15.15" tall x 11.5" deep 
interior dimensions per hexagon:  7.75" wide bottom ledge / 15.5" wide at center x 13.65" tall x 11.5" deep