Decking advice

[novice1976]

Hi, I'm planning to deck over an area which is bounded on three sides by walls (although one of these belongs to my next door neighbour). It's about an 11ft by 11ft area, and the deck will be about 18" off the ground. One of the walls has french windows opening on to where the deck will be.

Should I use a ledger board on just one of the walls, or two(I can't use my neighbours wall)? Also, what are the best bolts to use to attach the ledger board - it's going onto a stone/brick wall?

Any guidance greatly appreciated - most of the stuff I have seen is from the USA, and they just assume that the ledger board is being bolted into timber.

Thanks

 

[Thermo]

yep use the boards, very easy and quick way of doing it. Best to use either expanding anchor bolts or threaded rod with a chemical adhesive set into the wall

 

[novice1976]

Thermo, thanks for the response. Should I use ledger boards on the two walls or just one? Also, I was going to use a 47*150 Board - will that be enough, or should I double it up (I have to do this at the other end)?

Ta

 

[Thermo]

one of off each wall, and that size will be more than adequate

 

[novice1976]

Thermo,

this is going to seem like a pretty stupid question, but..............

What size of bolts should I use? I have searched online suppliers, but there is no real indication of what sizes would be suitable.


Thanks

 

[Thermo]

best to use something in the region of an M10 (thats 10mm diameter) x 120mm deep.

not a stupid question at all by the way

 

[novice1976]

Thanks for your help - it's the sort of information that none of the 'How to..' articles seem to tell you.

 

[megawatt]

Just to confirm what I think you know already ... You must not attach anything to the neighbours wall and be sure not to compromise their DPC with your decking.