Originally Posted by County Mike
That's why I said 41. I was counting the outside joists. Basically starting at zero and going to 40, since they're one foot apart. Not sure why it's wrong though. Awaiting the explanation and easier version of the question.
Thats just the thing, thats how vague my version of the test was. The other versions stated to include the outer rim,
Anyways Mac says 39 without the Rim, and if you ad the rim you would need 2 more 16 footers for the back, 2 more 16 footers for the front, then another 16 footer would be cut in half to finish the front and back box, then you would need 2 more for the sides.
39 is right if you do not count the box
41 is wrong
sorry I was a bit late I am fighting pneumonia.