Ive build a extension onto my house (4 x 8 meter), the existing an the new extension are both built using 9 ince cavity blocks, l want to have a bedroom upstairs in the new extension, so l am using 9 x 2 - 14 foot joists, what size of Hangers is best to use?. i am going to bolt (12 x 140mm anchor bolt) a 9x2 onto existing after cleaning away the plaster to get down to block work,
So my questions are which is the best size/type of hanger to use?
And dose anyone in there professional opinion see any mistakes in what lm doing?