Okay, because of Chan, and a reading something Andy said, we ended up going with all steel roofing rather than using wood. We were already at the place (ISI) to pick up the sheets of roofing. So, we decided to get prices on the steel for the roof support system.
Here is the break down:
7 each - sheets roofing steel (corrugated), snow white color. 3.5 meters long x 1.10 meters wide. $12.95 each, $90.65 total
6 each - 40 x 40 x 1.50 x 6 m long, $7.695 each, $46.17 total
5 each - 40 x 80 x 1.50 x 6 m long, $12.433 each, $62.17 total
1 bag - mounting screws with rubber washers, $3.50 total
Transportation from ISI, Road 5 to the farm, $15.00 total
Welding will run another $70.00 USD, for supports and to mount roof framing. (Welding & installation of trusses was completed on May 19th, 2017.)
So, we were able to get all the steel necessary to build the complete roof support structure, for less than the cost of the wood, alone. The wood would have cost $125 USD, by itself.
Edited by Paul, 14 October 2017 - 03:33 AM.
added date of welding completion.