My trailer is a 65x14,, How many boxes do i need to do my entire trailer??

910 sq feet house, each box is 24.12 sq feet. so you will need no less then 38 boxes. Try to see how many come on a pallet and get a pallet deal and sell the rest back.

65x14=910 sq ft. I don't know how many sq ft are in the boxes you are going to purchase. If it were 20 sq ft per box, you would need 46 boxes. Allow 10% for loss through different cuts you need to make for each room. 910 sq ft + 10% (91 sq ft) = 1001 sq ft. Now if each box held 20 sq ft you would need 50 boxes.

65x14=910 square feet every box covers 24.12 square feet 910 divide by 24.12 = 37.72 box rounds up to 38 boxes and add 1 or two just in case, the total would be 40 boxes roughly 40x $ 16= $ 640 plus tax