Quote:
Originally Posted by nealtw
Looks great, what did you do with the high post?

Believe it or not the inspector calculated the loads and it passed with a 4x4. the loads where sufficient.... color me shocked. BUT that only means it passes code. After finishing up I did a fair amount of human testing with around 600+ pounds (3 chubby guys and 1 skinny guy) all jumping up and down in as close to the same spot and sure enough not even a little bit of bend. So now I leave it up to father time to show me the error of my ways. Here are the calculations he sent us if anybody can geek out that far:
1  4x4 HEMFIR #2
Based on top edge having continuous lateral support.
BENDING:
Increase in allowable for duration of load =0%
ALLOWED = 9110.9 inch/lbs
ACTUAL = 5388.6 inch/lbs
Bending ratio = 59.1% of the allowable
Bending OK
SHEAR:  No increase used
ALLOWED = 1225 pounds
ACTUAL = 466.7 pounds
Shear ratio = 38.1% of the allowable
Shear OK
DEFLECTION:
L/180 = .3333 inches
L/240 = .25 inches
L/360 = .1667 inches
L/480 = .125 inches
Total Load Deflection = .1213"  L/495
Live Load Deflection = .0866"  L/693
Deflection OK for floors and roofs
Left reaction
LL =166.7 lbs
DL =66.7 lbs
TL =233.3 lbs
Right reaction
LL =333.3 lbs
DL =133.3 lbs
TL =466.7 lbs
I thought that after putting some load on it, it was going to keep me up at night. After completing the project and taking a really hard look at what happens with people on it though I'm pretty confident it will last as long as is reasonable for a wood framed deck. Which makes me sleep easy now and it's my brotherinlaws deck and he loves it so that helps too.