Also fitted a lintel a lot bigger than the wooden lintel. I'm embarking on building an extension on to the back of my house. 1 - Get the lintel removed when the back door is bricked up as it will not be needed anyway after that? 2 - Leave the lintel but route the flue along the wall a bit before going though (perhaps the original) opening? Is that allowed by the regulations? 3 - Leave the lintel and somehow bore through it anyway? 4 - Open to suggestionsAny info would be great. 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. 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). And there is a wooden frame around the PVCu door frame. 64m2. Discussion in 'Builders' Talk' started by Lee Swain, Jan 10, 2022. Graham Swire New Member. There is 1 window, width 580mm, where I cant put the lintel without changing the. Hi I am doing exactly the same as you with Georgian sash windows, with L lintels above the. A crack in a reinforced concrete lintel isn't going to be of much concern normally, but this sounds like it could have been a very heavy/substantial impact in a direction the lintel isn't designed to be strong - something of an unknown quantity - I'd want it replaced. PFC Plates - Galvanised Steel. i was going to add a piece of kingspan insulation behind the speakers. Build up the right hand wall to support the lintel then cut away the excess on the left. The roof construction is 145x45 x3m c16 timbers on 400 centres with a warm deck construction using OSB and expanded pu foam insulation. So roughly speaking if I allow some room for the plaster etc I'd likely be able to drill above the lintel if I went in 100mm from the top of the window reveal as seen from the inside? yetanothermike, Jul 12, 2023. don't think i gave you enough detail it is a cosmetic repair not a failed lintel wood not dream of trying to repair a failed lintel. I have been able to find the producers of the form of lintel number two, (window head and lintel), which appears to be entirely within the cavity and sloping towards the outer leaf. We will move the lintol back a bit. I can't use battens side or face fix. I don't suppose you sometimes feel like you Iive under an. Scotmac, Jun 18, 2016. 5kn. I've bought four lintels through them, all came from Jewsons but all much cheaper than I could get a quote. I’m widening the door frames in my house to 76cm ones. Option 1 - I take a loss on the window I bought, buy a smaller window that fits under the RSJ and somehow cover the RSJ with trim. The lintel has failed at the end, you can see outside where the end has been patched up. CGN Screwfix Select. Abrickie, Jun 25, 2021. com. 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'. So it is one of their lightweight ranges. In the days before lintels, you will always see a relief arch about 4 courses above an opening. Screwfix Community Forum. BuilderMCR, Feb 12, 2014. Bobby Dazzler, Nov 9, 2020 #2. During the old render hack off, I noticed that the single coarse of bricks above the window are in fact sat on the window frame it self. Hi gregz0012, yes you should be ok to remove the recent brickwork, years ago they built what they called a "builders opening" for fireplaces, and whatever form of fire was put in afterwards, they also used to put timber lintols in, so that arch was put there to relieve the weight of the chimney breast off the timber lintol, in fact i think they were/are called. Stephen White New Member. Timber frames were usually enough to support the brickwork with a 6x6 concrete lintel for the inner skin. Supreme L02 Steel Reinforced Concrete Lintel - 100 x 65 x. OP you're overthinking. CJR1989 New Member. foxer fc Member. Total load unfactored = 1. Think it's going to be fine for many years. Clearly there was some major lack of coordination between the brick layers and the appropriate position of the window frames. On the ones without a steel lintel a roll of 18inch Hyload could be used to form a tray, or sometimes lead. You should find a wooden lintol behind the arch, supporting the inside brickwork. I queried this and the builder says it is safe, but I am not sure. ProDave, Aug 18, 2007. 7 metre clear span (max) is capable of 1kn loads an average floor load is 1. Wayners Screwfix Select. Whatever your steel lintel requirements are, we've got it. 8 x 0. Hi, I've been having some trouble drilling into a lintel above a couple of windows, I'm fitting new blinds. With concrete up top, a prestressed concrete lintel would not look out of place. Before i proceed - and make a bigger hole (50mm) - can anyone help me understand what might have been preventing the first pilot hole (i'm assuming some hidden lintel) just to help me picture what's embedded in the cavity and how best to position my larger hole to avoid it. trowel New Member. #1. 1. #11. Current lintel fitted i think is 300mm x 90 mm concrete spanning both courses of brickwork. 3 high, max 4 metre to apex roof. Hi, I'm in a predicament with what lintel to put above a garage door, im currently building a 5. Home Forums > Screwfix Community Forum > Builders' Talk > Lintel type. Jord86 Screwfix Select. 2m. You've done structural work so BC should have an involvement. All the windows have a concrete lintel as shown on the attached photos. 42 per M. above. net) would suggest 65 x 100 will be OKThe easiest/most effective solution is to drill into the lintel. You have to accommodate shear rings and you must assure that the cover of concrete is a minimum of 25mm and the shear rings are 10mm so part the steel 25mm to allow for stone to pass in the mix and your beam is as strong as it can get. Depth 130mm. FREE next day delivery available, free collection in 1. the wooden window is looking like it needs some attention too. stevie22 Screwfix Select. There seems to be no evidence of an external lintel but is defiantly an internal concrete lintel for the inner course of brick. multiply by a FoS of 1. 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. #6. #3. Hi All, I was hoping someone may be able to shed some light on this one for me. This lintel will be re used for one window. I managed to buy 2700mm long, 100mm by 150mm concrete lintels from my local builders merchant for my garage doors. e. Screwfix Community Forum. sospan, Feb 9, 2017. The bricks are 102mm, the lintol shelf is 96mm. A concrete lintel is not designed to be a acrow, you are well out of your depth. If you look at how the soldiers line up with the brickwork at the top of the frame, it doesn't look like there is. Step 1 - Stripping wallpaper to see plaster board identify existing lintel and remove render. btw, to get the 6" height you will need two p/s lintels (one on top of the other). To solve this we fitted a 'Catnic' lintel to support the outer leaf only. Then finish with mortar and leave the Acro's in overnight. Maybe concrete padstones will be required here. I thought padstones were supposed to be slate or metal! Mr. 1. 60 metre garage out of 6 inch solids, the span of the door is 4. Home Forums > Screwfix Community Forum > Builders' Talk > Replacing lintel. I am looking to put a concrete lintel above this which will support a single coarse of blocks and the flat roof. CLEARANCE. co. The dimensions he specified are a little awkward (225 x 100 x 75mm), and we would like to avoid having to stick a 600mm long lintel up there if we can get away with it. This would then tie the 2 together. Morning, Any suggestions for fitting brackets where a lintel is in place? I am touching the steel after 15, 20mm. 5 for the floor load and doesn't leave much for the brickwork and any roof loads on the wall. 4m long with a clear span of 2. 1. 65x1. 0. talk, Oct 19, 2008 #1. The total wall. Probably be Universal Beams. When lintels were cast insitu the steel was put in the bottom as this was in tension. sospan Screwfix Select. com. 99 Inc Vat. CGN, Jan 16, 2022. Discussion in 'Builders' Talk' started by Sam Dingle. 5kn. Or hire a builder for a day. CGN, Oct 8, 2015. 28 x 284. I am guessing (emphasis on guessing) that the SDS is quickly going through plaster and maybe. Houses in the 60's and 70's were often built without a lintel on the outer skin. What lintel is on the outer skin? Or is it an arch. Footings and load calculations will be required. 32 mm. 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. If you look at how the soldiers line up with the brickwork at the top of the frame, it doesn't look like there is. Two questions: 1. There is no query about the sewer pipe or the foundation. The UK’s leading retailer of. stuart44 Screwfix Select. What lintel could I put in and how could it be fixed? My only though was to bolt a 102 H column to each of the existing end columns and then span it with a better lintel. The standard design figure for a flat roof is 1. Depends on the size of the opening. Log in or Sign up. Home Forums > Screwfix Community Forum > Builders' Talk > timber lintel. Weight of load assuming single skin London stock = 212kg/m2. Hence RHS will have the required stiffness. So, it serve important an fuction & you can't just put a opening in on the ground. It's solid but I know rust eats through eventually which has scared me a little. Thread by: Slinksta , Jan 7, 2023 , 9 replies, in forum: Builders' Talk Thread A prestressing process gives the concrete lintel a high strength to section ratio, minimizing costs and making for safer manual handling. S Builders, Oct 12, 2008. This could be a very easy DIY job if that wall above the opening ain't holding the ceiling/floor joists up. D. stuart44 Screwfix Select. 6 x 0. I’m about to put a new opening in my 1960’s bungalow for a new window. In the days before lintels, you will always see a relief arch about 4 courses above an opening. ChrisLong Member. replace lintel and then have the joints repointed to ensure integrity between bricks. #2. I used an angle grinder to cut through the bricks and got a fairly good result. It's all right to do but good luck doing it, I have cast insitu concrete lintels in my house and have fitted vertical blinds, what a nightmare it was drilling the lintel, you need to aim for the middle if possible because of the reinforcing wire tends to run along each side, normally a couple of inches in from the edge. Then prepare opening to receive new lintel/s and make good brickwork that ends of lintel will rest upon. Therefore this padstone doubles the area of the steel's footprint. same width does nothingdifferent than bedding the. The bricks are probably over-hanging the lintel edges so you can't see anything. FREE next day delivery available, free collection in 1. Wooden lintels work just fine - unless you render the outside of your house with Portland cement. It is supposed to allow you to replace lintels and even put in steels without having to pin and prop. Screwfix Community Forum. There used to be lintels made by Dorman Long which went over the top of the concrete lintel to take the outer. Next day pack gap with slate and remove acrow. Use 75mm/3" screws, use a combination drill, a 6mm HSS twist drill bit to drill through the lintel, then a 6mm masonry bit or you may need a 6mm SDS bit with accompanying drill if the wall is concrete block as the normal masonry. I am building a concrete workshop which will have a doorway 1. arrow Screwfix Select. Discussion in. 4 metres. We supply trade quality DIY and home improvement products at great low pricesGot a quote for some french doors to replace a window a few months ago. There are 2 main types, composite and non composite. Just buy a small cheap one if you don't have one. Home Forums > Screwfix Community Forum > Builders' Talk > Lintel into existing wall. I have a couple rotten joists by the front door (hall) and a rotten lintel above the door on the lower ground floor. KIAB Super Member. 150 is the norm as you say with 100 ok at low span. Wall on the right side of the opening (the compromised side) is 9cm thick, and wall on the left side is 25cm thick. On others there was a metal lintel such as a Dorman Long which sat partially over the inside concrete lintel and down over the frame carrying the brickwork and also forming a tray. D. 1 - 210x100x1800 lintel how I originally wanted flat side down (need to be absolutely sure it will be the right way to take stress of weight above) 2 - make opening in front face of bricks above lintel and locate stack. The construction is concrete marley tiles supported roof trusses which sit on the existing 9x3 wood lintels and the outer brick walls. . sospan, Oct 28, 2015. Even allowing for the dodgy brickwork/bits of. 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. Rockwool stops the concrete touching the pipes and so provides a gap around them. Nick058162 New Member. Then cutting out and removing old lintel/s, which will mean loosening course of bricks above. . However if the lines of influence spread out at 30 degrees there would be no loading on the pipe. D. The proper way is to remove chust the 'lintel' bricks first, clean up the slot, dampen, apply a bed of mortar where it'll be 'bearing', and slip in the concrete lintel. sagging. It's often cheaper to use steels with a plate welded on for the face work. #1. o. Â, Feb 21, 2006. Allow to set, remove lower bricks to form opening. This added over 50% more cost to. Thermal block has cracked diagonally starting from the end of the lintel, both towards the window opening and away from it, and has crumbled away in places. I used an angle grinder to cut through the bricks and got a fairly good result. Trying to put a plug in for a new fixing and getting refusal at 20mm. I suppose option 2 makes it easier to get the lintel. But guess main question is does it matter, is there a gap above where the frame of the doors will go, with a metal lintel like that was expecting it to be dead flat especially as second storey still to go: Easier to see in this picture, if I put a long level over at front then rocks on the bend although quite hard to see in picture:Order online at Screwfix. From flat steel lintels to catnic steel lintels. If you're really paranoid, just double them up. 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. There is a very small area of the wooden lintel that seems damp and soft (see the left of. I've taken down the old mouldy plasterboard around this door to replace with a new energy efficient door and PIR then new plasterboard. #2. £177. Supplied in a weatherproof bag. 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. #6. SJ, Dec 15, 2003 #2. forever i said! I'm hear all week! Major Mal Funxion, Jun 26, 2008 #1. It’s flat and not L-shaped. Parts of cracked block have moved inwards into the room: the small piece I’ve labelled A has moved into the room by about 2mm, and the larger piece B has moved into the room by about. This goes in about 20 mm and then hits something and the drill can not make further progress. The cavity tray (as per lintel install guidelines) runs down the lintel and bedded under the first course of bricks / blocks that sit on the outer leaf of the cavity lintel, which lead. There will be guidelines on Birtley's website: what else do. Screwfix customers rate this product 4. 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. Screwfix Community Forum. Padstones generally not required for Catnics, but in. Remove the windows and put a Catnic steel lintel in place making sure that there will be enough support on the left and right. The actual overhang area of the lintel rests in has a greater height (a bricks worth of height). Step 2 - install lintel and place props and strongboys wait 5 days for mortar to set. Mr GrimNasty Active Member. 1 windows lintel looks a little rotten so I am thinking it will need replacing. The other (identical) opening has to support an existing 250x250 steel beam (at 90 degrees) that is currently supporting an upstairs wall which in turn supports the wall plate which has the roof on it and. Buy Structural Fixings at Screwfix. Free returns. It's often cheaper to use steels with a plate welded on for the face work. etc. 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. Looks like a small section has blown about 100 mm long by 10mm deep. Jord86, Aug 29, 2022. 5 = 7kn/m run. Notnowvicar Screwfix Select. 2. The interior already has a concrete lintel in. Height 55mm. #1. Just 3x beams/lintels going in, 1x for the double garage opening of 4m, 1x for the middle span 5. This may also help with the heights because if an engineer can prove it, you may be able to get away with a beam on the internal skin along with the bottom plate. 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. Screwfix Community Forum. They would be cracking or sagging by now if the lintels aren't enough. The house itself is a 1930s terraced. Order online at Screwfix. You need to check with whoever has speccd them to ensure they meet structural design. Then fit lintel and angle grind out the opening, from both sides of the wall if its only a 4" grinder. rogerk101, Feb 16, 2022. Abrickie Screwfix Select From those photos, it looks like the it’s a very slight arch, which makes sense as there is no sign the original window sat forward in the outer skin of brickwork, if this is the case the arch needs rebuilding not a lintel inserting. Ideal for installation of wood, metal and concrete posts. looks like a flat steel plate, so my questions are this has been installed for years and years as we are looking at installing a log burner. rogerk101 Screwfix Select. New-to-DIY likes this. Upstirs windows were fine as the lintel in the. These usually need to be re-cut and a lintel put in, but this is a major disruption both internally and externally. 7m above the sewer then assuming the lines of influence spreadout at 45 degrees then a 3. Catnic do a variety of heavy duty lintels, but at the top end of extreme duty are around £500-£600 for that span. Option 2 - I replace the cracked concrete lintel with a new concrete lintel and remove the RSJ. Drill hole- fix bracket with a twin thread 4. Anyone could help to explain their advantages and dis vantages. There isn't a big enough clearance for the key to miss the lintel. I saw three of the four lintels that the builder took out. PAGE 1 OF 2. No need for structural engineers, no need for expensive steel beams, no need for fuss. Doesn't look like a lintel is in place on the external skin brickwork. 8m long to accommodate the other window. Don't know if the window is set back 4in, easier to take out, or sitting under the arch. I suspect it could do with replacing. You could use strappers to tie the blocks into. Ordinalrily the membrane/cavity box slopes from the inner leaf down to the outer leaf above the lintel. The manufacturer will be able to tell you the deflection tolerances. Imagine the lintel has sagged say 20mm in the middle and you want a level surface to attach your door frame fixings, level surface can be obtained by running a 25mm thick piece of wood fixed at the centre of the sag and and fixed at the outer edges with 20mm spacer pieces to fill in the gap between the lintel and. I intend to replace the conservatory, but just find that the mortar above the lintel has cracks causing like 3-5mm horizontal gap. For the sake of a bit of extra work and sorting that mess out just hire a couple of size 0 acrows, a couple of strongboys, stitch drill the mortar bed joint and bang them in above the higher lintel, remove all the cack underneath that's not needed and insert a new lintel once the brickwork is tidied up. Bigger window and lintel replacement. Normal concrete should be OK . Slow and steady. Available in a variety of options. We always allow more than this, especially if using very lightweight blocks below, as it spreads the weight a bit more. Explore our. Concrete lintel would be absolutely fine. The Stressline fair faced prestressed concrete lintel, 100mm wide x 215mm high, 2. 5m rule. hallbeck New Member. wardoss, Nov 29, 2006. There is an existing door on the wall and the new opening would be about 2. 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. Architect has advised to use a box 200 lintel, but what are my options. Unless it's an unusually wide doorframe, don't bother with mechanical fixings in the head, once frame is fixed in position through the jambs, squirt expanding foam all around the back and head to close any gaps, insulate and further secure in position, it'll. 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. Good. The wall is internal, concrete block partly supporting a loft floor above. Jord86 Screwfix Select. #9. I have an idea to use steel angle brackets to attach to the lintels and shed, but what would be a good way to attach the brackets to the top of the lintel, it will need to. Either way it’ll need a good SE to make sure. Put the required lintel spec on a B&Q trade note pad. Easily secure a wide range of applications in place. The plate is rotten as well, along with some of the joists which are also being replaced. 5 wood screw- job done. I knocking through a single leaf door way from a living room into a newly converted garage (doorway opening will be 90cm) . 4 kN/m (26kN/m if the span is 1. 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). thanks for the advice about not needing a. There has obviously been a timber lintel there before the pvc cowboys came along and fitted the existing door. The bricks are probably over-hanging the lintel edges so you can't see anything. Severntrent Screwfix Select Load acting on lintel is basically the weight of a 45 degree triangular wedge of brickwork acting from above the opening, Assuming a 800mm opening and weight of 100mm thick brickwork being 200kg/m2 the load on lintel= 0. 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. The lintel is above a first floor glazing opening which is floor to ceiling height and spans 3. A concrete lintel is by far the best way to go. Order online at Screwfix. Whatever your steel lintel requirements are, we've got it. 3 - take out layer of bricks in the sides of stack and break into partition wall. I would like to replace the lintels as it got a crack. 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. Having the lintel more or less touching the frame isn't a problem, it just shows they measured an manufactured the windows accurately as you don't want big gaps. 7kn/m run. 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. Compare. The doorways have four runs of blockwork (not the aerated sort) above them in a bungalow. The ingoing edge nearing the ceiling hit a metal lintel some 3 foot or so into the garage. So the lintel manufacturers are more likely the ones spreading such tosh. 3m span is on your lintel that is 1. 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. sandbags89, Aug 29, 2023. Use the smallest bit to drill a pilot hole and work your way up to your required size. 6 meter bifold doors in the front of the extension. 5cm long, I already had a 120cm long lintel that came with the house but would rather buy the best I can and get as much lintel on the bricks as possible. 2m. Discussion in 'Builders' Talk' started by Aron82, Nov. Sabrefix Gallows Brackets Galvanised Hot Dipped 490mm x 50mm 2 Pack. CLEARANCE. 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. This was more common on brickwork that was n't seen, and obviously when it was seen, the more traditional decorative arch was used directly above the opening. As a temporary fix, hubby screwed a heavy-duty angle bracket (like for a roof joist) into that corner, and wedged in another "jamb" on that side. Buy online & collect in hundreds of stores in as little as 1 minute! Free returns. It's a source of noise and draught but not sure how and if it should be covered. I figure the lintel does not offer bearing to the bricks above. So it’s supporting all the wall above it (2 floors) and then the roof above that etc. The wall ia load bearing for the floor joists above and a wall which itself is not load bearing. Discussion in ' Builders' Talk ' started by zak99, Apr 20, 2013 . 30 day money back guarantee. I’ve got concerns about how the lintel has been supported. 22 each (Inc. 8m) Rather more than a rotten piece of timber strength of not much more than 0kN/m,. The old windows have no lintel, I read in the good old days the wood was strong enough to support bricks. Anyway it cost me £180 to have one installed and they used props to hold up brickwork. To prevent corbonation it must be vibrated and the mix. in the end i had to go to another travis perkins. You need to get yourself at least two, maybe three acrows with strongboy head attachments and slot the strongboys under the dodgy blocks then fit the acrow props on top of a plank of wood to spread the load distribution, then jam the acrows under the strongboys and. If your lintel is just on the outer leaf of the wall this should not happen. It’s all a bit awkward, as it’s where near where my water and electric mains come into the house and there is some legacy mess of the electric box and a bunch of cables etc. The wall plate is supporting to roof rafters as well as roof so there is some load. With concrete up top, a prestressed concrete lintel would not look out of place. from $393 62 from. Screwfix Community Forum. There. Step 4 - hollow out chimney. Discussion in 'Builders' Talk. Break out the lintel with a kango in pieces. Would a 100 x 65 lintel be sufficient given that there is very little weight above or should I go bigger. 6m lintel (assuming clear span of 3. The material from which the windows are made has no influence on the strength of a lintel. 75 x 6. So maybe the rule isn't quite "150mm" length of the bearing but the actual area, maybe 15,000 mm2 (150mm * 100mm)?The rotten lintel has caused the wall above it to drop on one side. Do not attempt to join lintels. arrow Screwfix Select. Chang New Member. The images attached should go some way in showing the problem. 7mm thick plasterboard. ThanksWe 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. Lintels tend to be of similar design so looking on Standard-Concrete. Bed your pad stone down as well. Discussion in 'Builders' Talk' started by adamgee, May 29,. You can use a specialy made plastic cavity box or use wide damp profe membrane. Considering changing an 1800 wide window with waist high cill in the ground floor of a brick and block bungalow for a slightly wider set of french doors (2000 wide) that have been offered. Yep and I feel it's happening to my house. This method takes minutes - lintels and 2 pours takes hours!Hi I have a small room on the front of our house which has has what looks like two lintels put in, however I wanted to put a stud wall in attaching the head bar to one of the lintels.