math minute
Here’s another one for the it’s a small city box. I’m helping a guy demo out the old CItizen Cake restaurant in Western Addition. It was a trendy spot known for desserts and old roommate Matt was the bartender.
Now I’m sawzalling out the copper pipes from the kitchen sink and unscrewing steel studs from the 15 foot ceilings.
Being a junk man the contractor asked me to keep an eye out for 1 by 6 doug fir tongue and groove or ship lap, about 500 board feet.
“Sure,” I said. I had very little idea what all that meant. Probably about half made sense. Doug fir is Douglas Fir, a tree that covered much of this area in the 1800′s and even today is available for construction. 1 by 6 is the thickness and the width. Tongue and groove is a board with a groove on one edge and a protrusion on the other so the boards lock into each other. Ship lap, I didn’t know. It means a rabbet, or notch is taken out of the edge, allowing boards to overlap. Research revealed a board feet is 144 cubic inches of wood. So you measure width times height times length and divide by 144. This becomes algebraic and thus impossible for me to calculate. Mrs. Mace would have written like, “You need 500 board feet of lumber. How many linear feet of 1 by 6 douglas fir do you need to buy?” Then the bell rang.
Thank goodness for the Internet!
lf = (12 * bf)/(width(in) * depth(in))
lf = (12*500)/(1*6) = 1000ft
And, before anyone makes the comment, yes I have a bachelors degree in mathematics and yes I also require the internet to remind me how to do anything beyond what I learned in grade school.
Comment by Lyle_S — December 6, 2010 @ 11:59 am
I hate teachers, god damn know it alls
Comment by shitfaced — December 6, 2010 @ 1:45 pm