Remember, I stated we made mistakes. One is quite obvious thinking we only needed 1 long 2×4. So I drew the back left one into the picture:
#2: cut 1/2″ plywood 24″ x 19″ Place mark at 8″ from back left and another mark 14 1/2″ from front right, draw a line between the 2 marks & cut angle
#3: cut 1/4″ plywood 24″ x 16″ Place mark at 7″ from back right and another mark 15 1/2″ from front left, draw a line between the 2 marks & cut angle
#4 & 5: cut two 2×4’s 50″ or longer if you wish condo to be higher
#6,7,8: cut three 2×4’s 20″
#9 & 10: cut two 2×4’s 13″