hi.... i am bricking up front of the garage,, about 12 rows,,, then placing pvc window above upto the soffit,,,, i have just opened up the inside above the garage door and found that the huge load bearing timber lintel is not right up the top under the trusses but just above the door opening with wee bits above it supporting whatever then the trusses,,,,,,,i havnt opened up right to the top yet ,,,,i have been told by a neighbour whose father in law is a builder that they just reversed these ,,,wee bits i mean the four by two?? sandwiched together the same as the ones supporting the big lintel from concrete floor,,,,,,,,another neighbour said i need to replace entire supports from ground level right upto the height of lintel below trusses,,,,,,one other thing at ground level the long supports dont go right to the concrete but there are a few wee bits before the supports start,,,by the way yes i am going to use acrow props,,,,, hope this makes sense as i was told that the timber lintel is normally up at the top ,,,,,cheers