(1)  A 36 inch wide rectangular table is perfect for conversation.  A round table with a diameter of 48 inches seats 6;  a 60 inch round table handles 8-10 chairs.  (2)  How big should an overhead light fixture be?  Just add the length & width of the room in feet & whatever number you come up with is, in inches, your guide for the fixture’s diameter.  A 15 by 20 ft room will need a 35 inch wide chandelier.  (3)  One gallon of paint will cover about 400 square feet of wall.  MORE COMING!