The lintel is bowing slightly in the middle (measured to be 12mm lower in the middle than at the edges). I would Get it surveyed. The wall is internal, concrete block partly supporting a loft floor above. stuart44 Screwfix Select. Most BCO are happy with this. I use a 4mm cobalt bit from the competition (you get a pack of two for a few pence). 8m (wall is 3m) and need to support the roof (7×2 joists 18mm osb) but dont have the room for a rsj because of the 2. The lintel will need replacement as it carries the roof weight almost directly with not many courses of brick above for buffering and spreading the weight. Home Forums > Screwfix Community Forum > Builders' Talk > Replacing lintel. To prevent corbonation it must be vibrated and the mix. . The actual overhang area of the lintel rests in has a greater height (a bricks worth of height). Its hard not knowing what the gap between the plasterboard and brick is etc. The lintel actually sits partially inside the box so it needs to come out, remember this when you get the lintel and when fitting it. KBJ Active Member. Then fit lintel and angle grind out the opening, from both sides of the wall if its only a 4" grinder. 30 day money back guarantee. I am building a concrete workshop which will have a doorway 1. The rawlplug goes about 60 mm into the lintel. And some on the lower floor if solid, would be a good idea with board spanning the floor joists at right angles. Architect has advised to use a box 200 lintel, but what are my options. Either a solid wall lintel or concrete internally and L shaped steel externally, all @1500 in length. This lintel will be re used for one window. This is why is quite important to drill a pilot hole 1mm less than the screw to get a good fixing. . Spot on. The wall itswlf is an external end of house (detached) wall, bottom floor. Drilling into a lintel seems like a bad idea, what with it holding up the wall and everything. The old windows have no lintel, I read in the good old days the wood was strong enough to support bricks. This goes in about 20 mm and then hits something and the drill can not make further progress. The images attached should go some way in showing the problem. Buy Structural Fixings at Screwfix. My inner walls had timber lintels. 2,The bricks should be on a bed not right on lintel (but only at the front of the lintel) 3,Depends on the condition of the lintel if it seems ok leave it in fit new window rake out and re point. For one row of breeze blocks and not loadbearing the header would need to be at least 4" high (and that means it would be about 4" high and about 5" wide). This goes in about 20 mm and then hits something and the drill can not make further progress. One method of forming a lintel with soldiers and a cast insitu concrete inner lintel, was to fix wall ties into the joints of the soldiers and then cast the inner lintel. Pack in mortar tightly all around. Do not attempt to join lintels. Bobby Dazzler, Nov 9, 2020 #2. I would have said not to be concerned but the crack is also on the. The dimensions of the existing wooden lintel is: Width 1100mm. Yes, you need a lintel even though it’s only for 6 bricks and you also really needed it signed off by building control either via the fensa scheme or a BCO. I’m planning on using a strong boy prop to hold the downstairs load bearing wall in the centre while I fit a 1200mm concrete lintel. Don't reuse the old lintel. Any ordinary DG plastic frame will do because The new window will not be supporting anything. stevie22 Screwfix Select. Supplied in a weatherproof bag. Typically made from galvanized steel and designed to be installed quickly and safely. The window is 2440mm so looking to install a 2850 Birtley LA lintel giving me 205mm on each side. Got a vaulted cellar under the kitchen. Hi I want to increase the width of a doorway. There is a lintel above the window supporting one course of blocks. Steve_K New Member. #4. J. 3 lintels in total. 5kn. 6m wide opening. My solution would be to fit a Catnic lintel above the stone lintel that is a good 150mm wider each side, this would relive the weight off the broken stone lintel. a standard brick is 65mm high so by the time you add mortar the 140mm height means you get two courses of bricks and 1 lintel to even match up. 3 high, max 4 metre to apex roof. If you really want to be safe then when you come to replace the windows you get a structural engineer in first. Joe1985 Guest. The roof construction is 145x45 x3m c16 timbers on 400 centres with a warm deck construction using OSB and expanded pu foam insulation. CLEARANCE. KIAB Super Member. If the wall seems intact then you do. Thanks We want to extend this opening from 46" to 55",I know I need a 1800 x 100 concrete lintel but not sure of what height I need,the 1 fitted is 65 mm many thanks. Chang New Member. They were happy With my work until they received final bill. Current construction brick outside, breeze block inside with cavity. 2kN/sqm, So half of a 3. £177. Render on the wall insulation and fibre glass on the roof insulation. I have been told that I need 2 7x4 steel lintels bolted together to span 2. Even allowing for the dodgy brickwork/bits of. Wanting some advice. The walls are solid brick with the outside lintel made of stone (no cracks or issues that I can see) and on the inside there is a wooden lintel. With concrete up top, a prestressed concrete lintel would not look out of place. Wooden lintels work just fine - unless you render the outside of your house with Portland cement. 8 m wide. Fischer FIS V Zero 300T Injection Mortar 300ml (498HL) compare. Hi Im running alarm cable to a door frame but there is a concrete lintel where above the door. Thanks in advance Vin , Jan. there are 4 catnic lintels that will do a solic 9 inch wall, all with various strengths I have now found out. Masonry load above (standard Catnic lintel) 2700mm span. It is quite normal to have the slight overhang, wider than 6mm if that's the way it works out. arrow Screwfix Select. 5kn per sq metre. Use strong mortar (3:1) for bedding. I’m looking for some advice on a project I’m about to undertake. Hi I am doing exactly the same as you with Georgian sash windows, with L lintels above the. 5kn. SJ, Dec 15, 2003 #2. Some lintels are marked top. All you see is the steel lip and then the bricks. The attached photos will explain it better than I can. Severntrent Screwfix Select Assuming its a 3" x 4" lintel to C16 grade then calculation shows that strength and deflection wise its in required capacity, calculation was done using a loading nearly 1. Bob Rathbone Screwfix Select. You will need a lintel calculated for the new length. Andrew Gill Member. Products reviewed by the trade and home improvers. #9. Buy Builders Metalwork at Screwfix. The interior already has a concrete lintel in. Google “ Welsh arch” , and no you don’t need a lintel. When you use the key to unlock the door, if you leave the key in the lock and open the door the key hits on the lintel above and is prone to snap (as the carpenter found out). I would put a slightly longer lintel in that is toothed into the sides of the original builders opening. I managed to buy 2700mm long, 100mm by 150mm concrete lintels from my local builders merchant for my garage doors. In the days before lintels, you will always see a relief arch about 4 courses above an opening. I have a Catnic single leaf angle lintel and the lip is 91mm. Discussion in. exbg, Feb 14, 2023. This added over 50% more cost to. The Stressline fair faced prestressed concrete lintel, 100mm wide x 215mm high, 2. The house is 1930s brick and original windows have steel frames set into a wooden frame with a soldier course above. Ian Dingwall New Member. Fixings not included. Obviously a decent HSS bit is essential 5 or 6mm (any recommedcations, I normally use dewalt) nice and slow as I. 4m. Have you fixed the leak above them, because if not, that's. Drill Bits. As you can see there is a metal lintel above the doorway and it’s bedded into the wall I’m not removing and also laid on top of the lintel for the other doorway. Phil the Paver Screwfix Select. We will move the lintol back a bit. The distance from the internal lintel to front of bricks is 90mm. Support 1 course above where catnic is going using props and strong boys, remove area where lintel is going, bed lintel in on mortar (level both ways obv) with at least 150mm overhang each side, prop lintel off brick below, build brick off lintel to meet upper course. Is it OK to simple take out the steel and wood frames and replace with the PVC one or do I need to put a lintel of some. Mr GrimNasty Active Member. if using a lintel to support removal of a supporting wall, does it matter which way you place the lintel? I’m just thinking aesthetically and obviously will consult a builder before doing anything. Product Type. Home Forums > Screwfix Community Forum > Builders' Talk > Core Drill Above Lintel. Is this possible?On this same wall there is also a bowing lintel above the window in the bottom right of the image which would need to be dealt with at the same time. The bricks will be supported on a plate welded to the underside. Screwfix Community Forum. Jitender Screwfix Select. From my experience BC have asked for accompanying calculations for every steel or lintel I have ever fit. I am guessing (emphasis on guessing) that the SDS is quickly going through plaster and maybe. Bigger window and lintel replacement. The manufacturer will be able to tell you the deflection tolerances. You should find a wooden lintol behind the arch, supporting the inside brickwork. Jord86 Screwfix Select Some pictures of the whole wall would be helpful. Good. i am planning on rebuilding a calssic car and would like to make this a single opening door. 0. 1/ spread mortar along its top surface, use a spare akro to wind it up into place (not too hard tho) then backfill the 2 bearing surfaces on either end. I thought padstones were supposed to be slate or metal! Mr. From flat steel lintels to catnic steel lintels. Screwfix Community Forum. Hi. Drill bits are essential tools for any DIY enthusiast or professional tradesperson. While I think this is the easiest option it might look the worst. Don't use one of those saws. If there is a gap you can get a frame add-on/extension to fill the gap if you're keeping the existing frame. The lintel more than likely would have been a separate timber lintel, you can still see the bearings where it sat or it could have been part of the frame with 4x2 horns extending into the brickwork. More importantly, a solid concrete lintel crossing the cavity is a bad detail for cold bridging and damp. ) stacked on top of each other he. The lintel is only supporting the inner skin of block work. The centre of the hole will be 120mm above the top face of the lintel. £29. Break out the lintel with a kango in pieces. 7kn/m run. Cut a few holes in the wall and slide in some needles and jack the needles across the upper edge of the opening - Next cut a timber the width and depth of the opening and jack it in place below the opening and whack out the rotten timber. #1. Fixings not included. It'll need to be galvanised so the exposed soffit doesn't rust. The info on this can be a bit confusing, but basically Catnic claim their lintels don't need a tray whereas others do need them. It is unacceptable to screw two thin lengths of wood together to make a thicker piece and call it a lintel- 'it is not appropriate to the stresses involved'. However, this is structural engineer's calculation, building inspector is happy with it. 1. I’m widening the door frames in my house to 76cm ones. Your screws are too short and the self tapping side of things is pointless for this scenario. Above my lintels in my new extension, would you advise fitting Weep Ventilators along the lintel (or "Peep" Weeps Ventilators)? If so, what should the spacing between them be - I have a 1200 opening and a 1800 opening (lintels are 1500 and 2100 respectively). £29. If it is ok to drill a little way into a concrete lintel, how come my combi drill and masonry bit aren’t making a. In the dining room we currently have a upvc window that is just over 1500 wide and we want to remove it to fit in some patio doors also 1500 wide. i live in a flat built in the mid 50s but im having a door fitted were the window was did they put lintels above the windows in the mid 50s. 8m) Rather more than a rotten piece of timber strength of not much more than 0kN/m, with the. I’ve got a solid brick wall at around 350mm thickness with an opening of 2. You could almost certainly neatly cut out the horizontal row of bricks immediately above your proposed door frame using your saw so's you can slip your lintel straight in (with a min 150mm overlap at each end - I think. Made from top-quality steel, our drill bits are durable, long-lasting and able to withstand even the toughest of drilling tasks. Home Forums > Screwfix Community Forum > Builders' Talk > Lintel alternative? Discussion in 'Builders' Talk' started by mcooper2406, Jun 23, 2019. If the screw is extremely tight to wind in, it maybe to large for the pilot hole and could snap if this is the case. multiply by a FoS of 1. They were L-shaped (so I'm guessing there's another lintel for the block part of the cavity wall). Discussion in 'Builders' Talk' started by Pawr, Apr 29, 2017. Yes it’s good enough but there are better ways (in my opinion) such as either insert new joists alongside the old, or cut two inches off the joist ends and insert a trimmer joist section bolted to the outer wall, then fix the joists to that with joist hangers. I going to go with CN71A (catnic), as it removes the need for two courses of bricks and is strong. CLEARANCE. The cracks only span as wide as the window itself, around 3m, and are only maximum 1mm in width. Steve_11 New Member. We thought about putting a timber batten above the window on the inside wall, but the plaster and paint for the whole room is really uneven, so we're just trying to get some. I am using an SDS drill with 5mm drill bit. Discussion in 'Builders' Talk' started by Judith Birkett, Nov 8, 2020. The lintel has the same width as the PVCu sliding door. stuart44, Severntrent and CGN like this. These are important so they are big enough to spread the load through the rubble filled wall and down to the foundations. 5 = 0. downstairs bay window frame is cracking and was also fitted on to loose brick work which the company just repointed . Choose from top trade brands. However this only appears to work for some drill holes and not for others. I was thinking about putting a bit of timber although that would need brackets (i was thinking of a wooden block) on the end verticals to support it and worried it might all be a bit ugly/bulky. I'm embarking on building an extension on to the back of my house. 20 DeWalt Straight Shank Combination Drill Bit Set 23 Pieces (4635K)The lintel is above a first floor glazing opening which is floor to ceiling height and spans 3. Just as important as the size of beam/lintel itself is to check that the lintel manufacturers will be designing the padstones to support each end of the lintel. You will need a lintel and if this is the advice he gave you I would arrange and in independent person to check his work. A concrete lintel is by far the best way to go. I think we need a lintel for supporting upper floor structure (mid terrace house small house). Hi All, New member so go easy I am thinking of converting my garage and putting Bi-Fold doors in the side. Build up the right hand wall to support the lintel then cut away the excess on the left. Then cutting out and removing old lintel/s, which will mean loosening course of bricks above. A lintel is a beam placed above openings like doors and windows to support the structural load. i was going to add a piece of kingspan insulation behind the speakers. 32 mm. In the days before lintels, you will always see a relief arch about 4 courses above an opening. It is possible to span 3 metres easily with the correct lintel. I've bought four lintels through them, all came from Jewsons but all much cheaper than I could get a quote. Tamp it well down into the formwork to get rid of any voids. I've got to a few heavy blinds to top fix so need a reliable screw that won't snap when screwing into metal lintels or fail when the blinds are being used. After the new lintels are in place. D. Drill hole- fix bracket with a twin thread 4. Houses in the 60's and 70's were often built without a lintel on the outer skin. This is unlikely. Last edited: Aug 29, 2023. Just use a 6mm drill bit straight through the steel. As above r2eally , when installing insulated cavity lintels do i need to cover with dpm and have weep holes, seems a bit hit and miss from info ive found so im not sure if you need todo this or not. Discussion in 'Builders' Talk' started by Steve_11, Mar 4, 2021. 4 - put two 100mm lintels from partition. Home Forums > Screwfix Community Forum > Landscaping and Outdoors > Concrete lintels concreted into the ground to support shed, advice. Metal Wall Plugs. 0m) cut to size obviously. 2 = 2kN/m run of lintel so provided the lintel you are proposing quotes a Safe Working Load greater than this then all is good. Click to expand. If that's the case, then if it's for a door, you'll probably want to move the opening over a few inches anyhow to allow clearance for the door handle etc. . The fact that you have wooden lintels suggests that your house was constructed before WW2, in which case, it will have used lime mortar for the brickwork. #11. Bearings at each end must be at least 150mm. As if by magic the lintel cost £90. 'I-beam, H-beam, girder, lintel, Rolled Steel Joist, Rigid Steel Joist etc. The first thing I noticed is maybe minor. white rabbit Member. Discussion in 'Builders' Talk' started by Joe1985, Aug 9, 2021. One opening will need to support three floor joists at midspan. All the repair would be done from the inside. Buy online & collect in hundreds of stores in as little as 1 minute! 30 day money back guarantee. Cotswold Builders, Mar 6, 2015. The span is 2300mm and there was a prestressed concrete lintel with a span of 2700mm. The chimney is now completely out and supported in the loft but the. I have seen people use angle iron. Compare. When knocking through the builders put a concrete lintel on the brick wall side but on the other wall (breezeblock I think!) the wall is supported by wood. 31 each (Inc. 65 could work dependant on the situation so it might be worth a number crunch instead of reaching for the breaker. The above masonry will need propping before fitting new lintel, you will create more work by building a central pier. stevie22 Screwfix Select. back in 2016 I had windows and doors fitted. Del boy 10, Jun 30, 2023. That would be plenty to go under it and still leave you about 80 - 55mm of lintel to put the acrows onto. The plate is rotten as well, along with some of the joists which are also being replaced. Nowadays they are often pre-stressed in the neutral plane. 5 for the floor load and doesn't leave much for the brickwork and any roof loads on the wall. £13. The bricks are probably over-hanging the lintel edges so you can't see anything. Hammerman99, Mar 4, 2012. Non composite are designed to take point loads, for example a joist sitting straight on top, composite need 3 courses of brickwork first. I think there are several ways the water could be gettig in: (a) there's a crack between the lower course of bricks and the upper side of the lintel, possibly made worse by cable holders penetrating the pointing (no I didn't put those in) and (b) there's a cracks in the. 2. Will SF basic wood screws work fine or do I need to buy a specific type / brand? What's your preffered screw type /brand for fixing into lintels? Thanks. The builder gave a fixed price quote. #2. Simon74, Sep 13, 2016. You'll most likely be chucking it away after use as it'll be too blunt to be of much use (unless of course you're equipped and skilled to sharpen it). Don’t worry, it’s not especially difficult to do, however. The screws are spaced out by about 600 mm. Also is it ok to use a little expanding foam . 31 each (Inc. View attachment 24992. The only outside work will be pointing the box if required when it is put back in, but that can be done from the inside. 5m window. Vin, Jan 11, 2015 #2. as it's not only the lintel that has suffered. Supreme L02 Steel Reinforced Concrete Lintel - 100 x 65 x. Home Forums > Screwfix Community Forum > Builders' Talk > Lintel. Is a stressed concrete lintel suitable for this job (like a wide doorway)? Or should I put a steel section in there? Thanks. Without doing research into current regulations, based on my experience alone I’d suggest you will definitely need a 600mm lintel and with a cavity tray and weep vents above. The installers need to sort it properly. It's often cheaper to use steels with a plate welded on for the face work. . Most probably yes. 1m will give a UDL of 19. The lintel is above a first floor glazing opening which is floor to ceiling height and spans 3. They have become a little wobbly since the. Your screws are too short and the self tapping side of things is pointless for this scenario. There is no query about the sewer pipe or the foundation. The garages doors are 3 foot out front of the main house wall. Current lintel fitted i think is 300mm x 90 mm concrete spanning both courses of brickwork. A new HSS bit should easily carve through a lintel without problem. Also fitted a lintel a lot bigger than the wooden lintel. There used to be lintels made by Dorman Long which went over the top of the concrete lintel to take the outer. Steve, just so you know the theory of the concrete lintel. Step 4 - hollow out chimney. The opening's been narrowed and shortened at some point in the past (I get the feeling this was done by a previous owner rather than a professional). There has obviously been a timber lintel there before the pvc cowboys came along and fitted the existing door. Yes you can fit a door there, yes you will need a lintel and yes you can reposition the strap or cut the majority off and fix the remaining to the four courses of bricks. Phones getting used. This would then tie the 2 together. I was thinking of buying a 8mm thick 70mm. There will be guidelines on Birtley's website: what else do. 8 x 0. Anyway it cost me £180 to have one installed and they used props to hold up brickwork. Notnowvicar Screwfix Select. stevie22 Screwfix Select. You can stitch drill out half a brick quite easily and the lintel will then be resting on good solid brickwork. S Builders New Member. Anyway, because of the positioning of the lintel, I needed to trim down the bricks to fit. Morning, I need to buy a. #3. Doesn't look like a lintel is in place on the external skin brickwork. PJ Wales Member. Home Forums > Screwfix Community Forum > Builders' Talk > lintel above window. Or is there some other method that would work. camey1000 New Member. " It just doesn't give any indication how mature the mortar should be before removing the props - that's why I posted my question. Allow to set before then cutting and removing the space below. Screwfix Community Forum. Window head and lintel 3. 1,The lintel on the brickwork should realy have a bed under it but not essential. It's a heavy lift, but two strong people can do it. two foot wide is mentioned - so 2 props either side of the opening, needles through, with 2 more on the other side of the wall taking the other end of the support member/needle - somewhat simillar to the below. The Stressline fair faced prestressed concrete lintel, 100mm wide x 215mm high, 2. This is a big RSJ steel lintel which has a plate welded to the bottom of it and so I am guessing it is approxinamely 10-12mm thick. I am looking to put a concrete lintel above this which will support a single coarse of blocks and the flat roof. This could be a very easy DIY job if that wall above the opening ain't holding the ceiling/floor joists up. Discussion in 'Builders' Talk' started by neilbick, Mar 22, 2022. The old windows were wooden frame and aluminium. Even composite ones with a single bar in the centre or neutral plane can have a rough top as a key for the brickwork. When you use the key to unlock the door, if you leave the key in the lock and open the door the key hits on the lintel above and is prone to snap (as the carpenter found out). I would like to replace the lintels as it got a crack. The overhang is approx 130mm each end - googled it and. There has obviously been a timber lintel there before the pvc cowboys came along and fitted the existing door. com. These usually need to be re-cut and a lintel put in, but this is a major disruption both internally and externally. KIAB , Feb 22, 2019 #4I m planning on replacing some old single glazed windows in my house with new uPVC double glazed units. com. If you can't move it, then I wouldn't get too worked up about the bearing, provided the brickwork above the lintel is properly keyed into the adjacent wall. Depends on the size of the opening. The construction is concrete marley tiles supported roof trusses which sit on the existing 9x3 wood lintels and the outer brick walls. The lintel is bowing slightly in the. sospan, Oct 28, 2015. ), with virtually no risk of the bricks above moving. 7 KB Views: 22. The opening's been narrowed and shortened at some point in the past (I get the feeling this was done by a previous owner rather than a professional). e. Danblez New Member. I anticipate the lintel being directly above the French sliding door, because the cavity wall above is basically : Outer skin – 4 bricks high (then joists on top) Inner skin – one (aircrete) block plus one brick high (then joists on top) If I needed to have the lintel higher, then this is a pain, because I couldn’t use a full block on the. It’s a cavity wall construction with block internal walls and brick external with timber rafters spanning the width of the building topped with concrete roof tiles. I've some concerns about whether or not the job has been done properly. Trying to put a plug in for a new fixing and getting refusal at 20mm. com. The outer leaf dropped and the frame distorted. I suspect it could do with replacing. 23mm (517HR) (1) compare For Angle Grinders Sabrefix Gallows Brackets Galvanised Hot Dipped 490mm x 50mm 2 Pack. Hi.