Using strongboy or acros or both

[neilh2489]

Guys

Ive read and reread the content and posts on this site regarding different ways to support ceilings/upper floors while creating new doorways. However I still have a question of my own for your attention.

I want to put a new doorway between my utility room and garage. The house is modern construction so internal walls downstairs are block and upstairs are all wall board/partitions.

The wall is loadbearing and so I am planning to use acros to support the load. My question is this:-

To use acros in conjunction with strongboy attachments do I need to have acros and strongboys either side of the wall or will using them on just on side be ok. The wall is single thickness.

The other option I have is 2 x acros with suitable planks to hold up the ceiling/joists either side and then to knock through the hole for the lintel and doorway. I will then mortar the top of the lintel and jack it into place with a fifth acro.

Considering the wall doesnt support anything other than floor joists (no brickwork above the wall) could I get away with simply cutting the lintel hole and then jacking this up with strong boys before removing the remainder of the wall.

Thanks for you patience with my noobie questions

 

[noseall]

the last option seems ok, knock outs for openings as small as single doorways often need no propping. we tend to use a masonry drill to weaken the opening, literally making a dot to dot of the apeture then bolstering down the drill holes, comes out a treat and not too mutch dust.