Joists hanger

[checkmate]

Hi guys

Can you put joists on top of blocks? What I've seen usually is a hanger is applied on blocks then joists rests below the bock but my builder plans to rest the actual joists on top of the block to gain extra height. Is this possible if so which hangers would they be using?

I wanted to know more about this before they proceed mainly if it's a normal practice.

 

[checkmate]

Just saw this on bnq

http://www.diy.com/departments/steel-joist-hanger-w50mm/251051_BQ.prd

Does this screw to top of the blocks? then rest joist on top?

 

[oldbutnotdead]

Yes it is fine. Usually you'd put a timber wall plate on top of the wall then skew nail the joists to the plate and block between them (to stop them twisting). No hangars required.

 

[noseall]

Yes it is fine. Usually you'd put a timber wall plate on top of the wall

For ceiling joists - yes. If its floor joists and more masonry above then either joist hangers or build-in is fine, as long as the air leakage thing is dealt with.

 

[oldbutnotdead]

Funny the assumptions you make when you see things- yes I was assuming ceiling

 

[checkmate]

Yes its for ceiling. its for outbuilding flat roof.

One thing i noticed was the lentil is running at top. level. the joists needs to run at top of it. So can the builders screw through a lentil? i read somewhere you cant.

sorry i do trust builders but its good to double check than regret after!

 

[^woody^]

Are the builders just making it up on a whim, or following plans?

 

[checkmate]

its a garage outbuilding, so no plans were created as such so going with flow. its on price but i supply all materials.

as long as its within 30sqm and meets the height requirements before building regs or planning perm kicks in.

 

[geraldthehamster]

Yes its for ceiling. its for outbuilding flat roof.

One thing i noticed was the lentil is running at top. level. the joists needs to run at top of it. So can the builders screw through a lentil? i read somewhere you cant.

sorry i do trust builders but its good to double check than regret after!

Is your builder vegetarian?

 

[oldbutnotdead]

If you mean LINTEL (loadbearing bridging piece) rather than LENTIL (dodgy vegetable) then depends what sort of LINTEL it is- concrete, fabricated steel, timber, dubious RSJ?

 

[checkmate]

Sorry it's lintel damn autocorrect.

It's a concrete one. Had thinkwhy vegetarian lol

 

[noseall]

rather than LENTIL (dodgy vegetable)

I thought it was a pulse? Or is that summat your heart does?