A Lintel install query...

[jr2]

We will shortly be converting the kitchen room and dining room into on

room

requiring the removal of a load bearing single brick wall (3 Metres i length)

the load being joists ... (bedroom joists) that run at right angle across the

top of the brick wall ... obviously a lintel will be installed t support the

joists... OK so the required overlap of the lintel onto pads/base a each end

is I believe 150mm. the 150mm. at one end ...ie. the outside wall o the

house... won't be a problem the problem comes at the internal wall en

where there would only be a 100mm. overlap this is obviously becaus the

internal wall is only a single brick ... what would you say is the bes way of

making up the extra base ?? could we just simply leave a stub wall o half

brick or full brick of the wall that we're taking out at the interna wall end to

form a T Shape (a stubby T shape) and thus comfortably make up the

required 150mm. ... or is there a better looking way / method. or wil the

councils building inspector accept the short 100mm. base in the firs case.

maybe not... any thoughts

-- jr2

[Dave Plowman (News)]

Best to get a structural engineer in to do the calculations and tell the type of pad stone required for the internal wall.

[Weatherlawyer]

You are talking abut an RSJ or some sort of purlin not a lintle. Someone on here posted this page:

's certainly worth a look.

You will need to prop the ceilings on both sides with accrows or 3 x 2s nailed to headers and footplates, whatever. Leave yourself enough space to work under them.

[jr2]

Sorry... yes I have the rsj lined up ready to purchase from a guy wh has sold quite a few of them to people who have had them ok'd by th council.

The RSJ details are 152x89x16 UB

The council engineer has been informed of this and sounds favourible, the acros and 5 x 2 s ...etc, won't be a prob. it's just how best t arrange for the base under the end of the rsj which is poking thro' th single brick wall... whereby we have 150mm. to rest on.

and the important thing is to get the rsj inside of the acros ready t lift into pos

-- jr2

[Phil]

The 1/2 brick wall may not be strong enough to carry the RSJ and it's imposed loads - you will need a structural engineer to show this and provide a solution.

[Set Square]

If it's only holding up a floor - and not any other brickwork and/or supporting the roof - it will probably be ok. After all, the other end of the RSJ will probably only be supported by the inner leaf of the cavity wall, which is - in effect - a single brick wall. You don't get much support from a cavity!

[Chris Bacon]

He could always build up a pier for extra support.

[Dave Plowman (News)]

Yes - but this would look unsightly. Best get a structural engineer in. The BCO will probably insist you do anyway.

[jr2]

yes but it will be full brick "pier" wall plus the existing singl brick wall... and the "pier" wall will be tied in with "frame cramps". okeedokee..

-- jr2

[Cordless Crazy]

So am I right in thinking you will be making a `T` shaped pad stone?

The leg underneath the UB will be 315mm? (215mm (one brick) + 100m (the wall it is perpendicular to))

Make it 300mm wide across the back and at least 150mm (2 courses) dee and you will have no probs. Use a good strong mix concrete like C30 t construct the padstone then the spread of the load will be more tha adequate. This is based on the fact that it is a small steel section i the first place spanning 3m, so the loading is not astronomical at eac end. If the floor above is only typical joist and floor boar construction with a relatively low live load then cool. If you have water bed or similar heavy load directly above and adjacent to thi area then you mak have problems justifying the force

-- Cordless Crazy

[jr2]

yes all the way... T shaped pad stone... as you say there is no rea length involved... but in fact you're uncannily correct abou everything including the water bed... so the way I see it either th council ok it or the water bed might have to go (it's 15 year old i any case.

-- jr2