Deck type |
Fastener pattern |
α 1 or α 3
– end distribution factor
|
α 2 or α 4 – purlin distribution factor |
Σx ee
2 or
Σx e2
, in . 2
|
Σx pe
2 or
Σx xp2
, in . 2
|
A |
N , ft |
D-Warping constant , in .
22 GA 20 GA 18 GA 16 GA
|
36 / 9 |
3.000 |
3.000 |
1,656 |
1,656 |
2 |
2.333 |
1,235 |
924 |
606 |
428 |
36 / 7 |
2.000 |
2.000 |
1,008 |
1,008 |
1 |
2.000 |
1,235 |
924 |
606 |
428 |
36 / 5 |
1.667 |
1.667 |
936 |
936 |
1 |
1.333 |
7,288 |
5,452 |
3,578 |
2,525 |
36 / 4 |
1.333 |
1.333 |
720 |
720 |
1 |
1.000 |
10,315 |
7,715 |
5,064 |
3,574 |