4/04/2012

joists and bearers

today we started by finishing the bearers from yesterday and starting the joists. we started marking out the boundry joists where they had to sit on the edge of the bearers. we tacked each end of the joists so we could the hit each corner a square it up. after that we got put into groups an got given seperate jobs. me an eru got given the cutting job on the radial arm saw. i chaecked the end on the joists for sqaure and if they were algood i mark out 7190mm an cut it. the number of joists worked out to be 35.6 so round that up to 36. i.e. 15.5 / 0.450.
 the joists then were put inside the boundry joists an tacked at each end 450 centeres the whole way. using 4inch galvinised nails.after lucnch i got put onto making the man hle in the linen cupboard, i started by looking at the plans and transfering them onto the boundry joists. then i measured an marked out the hole i needed to cut out an pulled the joists back out ct out my 600mm hole +90mm+90mm which is to compensate for the doulble joist to that was needed to make it abit stronger. i measured an worked out what the gap in the middle on the double joists was an cut 4 bits at 807mm to fit inbetween.
nailed them together marked out with my tape an square where thay needed to sit to be square an nailed it all up.

A= joist
B= trimming joist
C= curtailed joist
D= trimmer joist

hand tools used
-hammer
-pencil
-1m rule
-8m tape
-sqaure

power tools used
-radial arm saw
-paslode nail gun