A square of shingles cover a 10'x10' area, so 6 square. If you have a part of the shingles on the roof now, be a good idea to take it with you so they can match it to what you will have to buy. 30lb felt paper covers about 200 sq ft, so 3 rolls. About 10 lbs of button caps ( 3 of the large boxes ? ) and about 20 lbs of roofing nails.....these last two are just a guess tho. Just so the decking is in good shape, this is about all you will need.....cept a few folks with strong backs and weak minds to do the work.....lol.