If you're really paranoid, just double them up. multiply by a FoS of 1. I don't suppose you sometimes feel like you Iive under an. 65 could work dependant on the situation so it might be worth a number crunch instead of reaching for the breaker. I am putting some blinds up and need to drill into a solid steel lintel. Hi, I'm a building a garden room out of 3 x2 cls c24. 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). The interior already has a concrete lintel in. The lintel has the same width as the PVCu sliding door. I’m widening the door frames in my house to 76cm ones. KIAB , Feb 22, 2019 #4I m planning on replacing some old single glazed windows in my house with new uPVC double glazed units. Have you fixed the leak above them, because if not, that's. The brickwork is sound apart from the section between the door and window. The span is 2300mm and there was a prestressed concrete lintel with a span of 2700mm. (2)Carefully slice the faces off your bricks with a 115mm diamond blade in a. You stated that you didn't know the correct terminology. The lintel is on a double story, solid double skin extension with a single slope roof on the back of a Victorian terrace and the clear span is 1300mm. same width does nothingdifferent than bedding the. I’ve got a solid brick wall at around 350mm thickness with an opening of 2. Either a solid wall lintel or concrete internally and L shaped steel externally, all @1500 in length. Some info: The lintel length will be 1200mm (150mm overhang on each side) but not sure what height and depth to buy. 99 Inc Vat Click & Collect Delivery OX Trade XL-10 Masonry Segmented Diamond Blade 115mm x 22. qwas123 Screwfix Select. 3m span is on your lintel that is 1. Why remove the roof? I'd wrap the whole lot with external insulation. This will be like trying to support a loadbearing wall on a folding steel rule. #6. Spot on. But really best to check with BCO who’s going to sign. Remove loose paint and wire brush lintel, then dust down. 4kg/m. I am currently rendering my 1930 semi detatched home. Bob Rathbone Screwfix Select. Use either lintel or angle iron between brackets. Even composite ones with a single bar in the centre or neutral plane can have a rough top as a key for the brickwork. VAT) Supreme Prestressed Textured Concrete Lintel 100 x 100 x 1050 S10. 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. 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. Order Rawlplug Metal Wall Plugs 6mm x 32mm 50 Pack at Screwfix. Its hard not knowing what the gap between the plasterboard and brick is etc. The rawlplug goes about 60 mm into the lintel. Has excellent adhesion and resists slumping but build up in several layers, allowing each to dry before adding more. Would i need a small lintel above the hole supporting the blockwork? Its a single story extension with a pitched slate roof, so the inner leaf is supporting the roof. Can then sand down and shape like a regular filler, ready to paint. 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. 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. Hi, I've been having some trouble drilling into a lintel above a couple of windows, I'm fitting new blinds. btw, to get the 6" height you will need two p/s lintels (one on top of the other). Drilling into a lintel seems like a bad idea, what with it holding up the wall and everything. 22 each (Inc. D. They are refusing to pay saying wrong lintel was put in and waiting for structural engineer to do his report. 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. Clearly there was some major lack of coordination between the brick layers and the appropriate position of the window frames. Use like a regular powdered filler. 150 is the norm as you say with 100 ok at low span. Padstones generally not required for Catnics, but in. Catnic do a variety of heavy duty lintels, but at the top end of extreme duty are around £500-£600 for that span. I’ve toyed with the idea of cutting the lintel back by 20mm and reusing the bricks or using an 5mm angle piece of. So I need to replace it. Your screws are too short and the self tapping side of things is pointless for this scenario. He says the padstone is 8" x 4" whereas the steel's footprint is 4" x 4". stuart44 Screwfix Select. New Member. I've taken the chimney out in my house and whilst I was removing it found it was partly being supported by what I can only describe as a concrete lintel that is inserted into the party wall, presumably for counter leverage. The construction is concrete marley tiles supported roof trusses which sit on the existing 9x3 wood lintels and the outer brick walls. 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. This coupled with the fact that the bedroom directly above has a very spongey and dipping floor (dips roughly in line with the window below) make me. Click and Collect is available or enjoy free UK delivery on selected orders over £150 ex VAT. Not impressive work by the builder. Step 3 - Remove center prop and fill with mortar repeat for props left and right, wait 5 days. Quality SDS drill is what you can do with for drilling concrete lintels , you dont have to buy one you can hire one to save you some expense, cos you get what you pay for you might as well hire a quality one than buy. This goes in about 20 mm and then hits something and the drill can not make further progress. The lintel only needs to support 4 courses of bricks above the door. The bricks under the lintol should be kept too the line. No no handy A bit like a standard brick, but a bit more of a hard bar steward! Compo on top of your lintel. The cracks only span as wide as the window itself, around 3m, and are only maximum 1mm in width. I use a 4mm cobalt bit from the competition (you get a pack of two for a few pence). Finally with 100 bricks and a 215 wide wall you only have 100 left for the lintel beam. £177. The Stressline fair faced prestressed concrete lintel, 100mm wide x 215mm high, 2. Bob Rathbone Screwfix Select. Discussion in 'Builders' Talk' started by Aron82, Nov. So, it serve important an fuction & you can't just put a opening in on the ground. ProDave, Aug 18, 2007. Is a stressed concrete lintel suitable for this job (like a wide doorway)? Or should I put a steel section in there? Thanks. Doesn't look like a lintel is in place on the external skin brickwork. And all the same to anyone else. The top of the french door (1800mm wide) and two windows(1200mm wide each) will be in the top layer of blocks - i. e. The problem is at present the existing concrete lintel needs to be either replaced or the load 600-800mm of blockwork above plus some weight of the floor supported by in effect extending the length of the. The old windows were wooden frame and aluminium. 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. There seems to be no evidence of an external lintel but is defiantly an internal concrete lintel for the inner course of brick. Any advice is gratefully recieved. Compare. Buy online & collect in hundreds of stores in as little as 1 minute! 30 day money back guarantee. 2/ mortar up the 2 end bearings drop the lintel onto these then backfill the upper surface. It's a wall dividing two rooms & usually front & back, plus it's the mid way support for the 1st floor joists, & wall continues up & will divide two bedrooms, the wall then supports the bottom chord of the truss which the ceillings are fixed to. All the repair would be done from the inside. An surveyor will probably cost £100 for the call out, inspection and short report and advice on how to fix it. I would like to replace the lintels as it got a crack. The both garages of both houses are in the mid part. Self tapping screws into the lintel to create a strong fixing as the blinds are very heavy. Whereas the usual DPC in a brickwall is 150 cm above ground level in the diagram the lintel is sitting much further down and getting wet from both top and bottom. Currently opened up my fireplace and installed a new lintel:910mm opening with a 1200mm lintel inserted is this sufficient enough also found that I have another older lintel above it one more also in the bedroom fireplace just a diyer so any help would be great thanksTong New Member. 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. 2m. Screwfix Community Forum. Next day pack gap with slate and remove acrow. The rules as I understand them is a lintel up to 1200mm can have a 100mm bearing, longer than that and it's 150mm min. I'd rake that out a bit then fill with toupret masonry filler (powder and add water) masking tape around to keep tidy and protect window with hardboard or something. Fixings not included. Home Forums > Screwfix Community Forum > Builders' Talk > Lintels. Joe1985 Guest. It's not just a question of replacing the lintel either. rogerk101 Screwfix Select. Either dot and dab plasterboard to the reveals square to the window to narrow the gap, dot and dab plasterboard at an angle (my preferred choice) to the window and reveals, batten out the reveals and plasterboard, or wet plaster/render it, but you'll need lots of aapplications and it will take weeks to dry out fully. you are asking a question that can not be answered over the net, a little stupid me thinks. 2. Buy Structural Fixings at Screwfix. Above the lintel is stone to the apex. A concrete lintel would suffice, the bottom course of bricks should be able to be drilled and taken out carefully then the new lintel inserted with compo to take up any gaps, you can then use a regular height firedoor. Bigger window and lintel replacement. (1)Chop it out and build a brick arch over the actual fireplace, no lintel required, brick up sides as normal. Busterhymen Active Member. I figure the lintel does not offer bearing to the bricks above. Remove the windows and put a Catnic steel lintel in place making sure that there will be enough support on the left and right. 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. rogerk101, Feb 16, 2022. fix the redwood to the wall with the fixings at either side of the lintel, and then fix the curtain pole to the redwood. Write a review. Hi all, I have two non load bearing concrete blockwork walls. ) stacked on top of each other he. 8m) Rather more than a rotten piece of timber strength of not much more than 0kN/m,. FREE next day delivery available, free collection in 1 minute. The part picture is the widest. Discussion in 'Builders' Talk' started by Aron82, Apr 18, 2021. rogerk101 Screwfix Select. 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. stevie22 Screwfix Select. However, there is no bowing of the lintel above the window or any issues with the external masonry. Order online at Screwfix. Your screws are too short and the self tapping side of things is pointless for this scenario. There is an existing door on the wall and the new opening would be about 2. #3. 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. Fischer FIS V Zero 300T Injection Mortar 300ml (498HL) compare. = 184. Phil the Paver Screwfix Select If you are removing the door to leave an opening, then i would fit a concrete lintel in above the door frame before you remove it, and then plaster over it after. Area of load = 41m2. there is no 'wall' weight to support - just the lintel itself then the wall plate/roof Flat roof will be (assuming I. The house is 1930s brick and original windows have steel frames set into a wooden frame with a soldier course above. The wall is internal, concrete block partly supporting a loft floor above. Free returns. 'I-beam, H-beam, girder, lintel, Rolled Steel Joist, Rigid Steel Joist etc. There is no lintel so i began to put one in but was wondering if i could open up the fireplace wider as in right to the edge. com. If windows were fitted by a window company then they should have notices this at the surveyor. Water dripping from lintel. Thanks. I’m looking for some advice on a project I’m about to undertake. The images attached should go some way in showing the problem. 7 KB Views: 22. Home Forums > Screwfix Community Forum > Builders' Talk > Replacing lintel. Trowel it smooth on the exposed top face. The wall was a double skin wall, originally the external wall to the house and therefore load bearing. Galvanised, mild steel. The total wall. 3 high, max 4 metre to apex roof. Do I need a new full length steel lintel bridging the whole length, inside and out. There is a lintel above the window supporting one course of blocks. The lintel has the same width as the PVCu sliding door. The ones with the black squares is where the window will be going. Height 55mm. Good. 7mm thick plasterboard. So ref your other post about the steel, it has to carry. A standard brick is 102mm wide. Any advice greatly appreciated. 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. Whatever your steel lintel requirements are, we've got it. Chang New Member. 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. Click & Collect. This is why is quite important to drill a pilot hole 1mm less than the screw to get a good fixing. So do they normally a one continuous lintel or both houses have separate lintels. Drill hole- fix bracket with a twin thread 4. Screwfix Community Forum. And some on the lower floor if solid, would be a good idea with board spanning the floor joists at right angles. I got 4 painted steel lintels replaced at my house with galvanised ones. 1 windows lintel looks a little rotten so I am thinking it will need replacing. I did my best, used standard lintel which I would normally use in similar situation. I going to go with CN71A (catnic), as it removes the need for two courses of bricks and is strong. FREE next day delivery available, free collection in 1 minute. It is quite normal to have the slight overhang, wider than 6mm if that's the way it works out. If a red plug wasn’t the overall best and simplest idea I wouldn’t have suggested it. 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. Current construction brick outside, breeze block inside with cavity. Use either lintel or angle iron between brackets. Screwfix Community Forum. Once this is achieved, you can happily remove the brickwork below the new lintel. The issue is long term Damp Proofness of the lintel (i. 5-5 mm. The hip roof trusses are 1. 4m long with a clear span of 2. And some on the lower floor if solid, would be a good idea with board spanning the floor joists at right angles. 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. Density of thermalite block say 730kg /m3 (depends on specific block used), hence 110kg /m2 for 150mm thick block. If you really want to be safe then when you come to replace the windows you get a structural engineer in first. Upstirs windows were fine as the lintel in the. The lintel has failed at the end, you can see outside where the end has been patched up. back in 2016 I had windows and doors fitted. I used an angle grinder to cut through the bricks and got a fairly good result. The spec of a lintel is almost entirely dependent on the span because in theory it doesn't matter how many floors worth of walls you build on top of the lintel. Pack in mortar tightly all around. This could be a RSJ steel lintel or concrete lintel. nutnut New Member. There is 1 window, width 580mm, where I cant put the lintel without changing the. Probably be Universal Beams. The overhang is approx 130mm each end - googled it and. Or is there some other method that would work. e. the biggest rsj may support the weight above, but the rsj might wheigh 25tonnes in which case the footings will start to sink. 99 Inc Vat Click & Collect Delivery OX Trade XL-10 Masonry Segmented Diamond Blade 300mm x 20mm (216HP) compare For Disc Cutters For General Masonry, Paving. 5 wood screw- job done. Step 1: is the lintel man enough to carry the loads? Step 2: install following manufacturers instructions to prop during brickwork as span > 1500. stuart44 Screwfix Select. As you say the lintel is only holding 1 row of bricks so not supporting a very heavy load. The installers need to sort it properly. 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. £15. Hi, I've been having some trouble drilling into a lintel above a couple of windows, I'm fitting new blinds. Discussion in ' Builders' Talk ' started by zak99, Apr 20, 2013 . e. The above masonry will need propping before fitting new lintel, you will create more work by building a central pier. BuilderMCR, Feb 12, 2014. All you see is the steel lip and then the bricks. In fact, on a door width size opening, you could almost eliminate the lintel once the wall above it was built and the mortar had set. Support bracket for removal of internal chimney breast. Probably 200x100. We will move the lintol back a bit. 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. They were L-shaped (so I'm guessing there's another lintel for the block part of the cavity wall). 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. 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. Total load unfactored = 1. The lintel will need to be approx 124. 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. CGN Screwfix Select. I would have expected to use accro props with strong bows min of 3 for the big one. Buy online & collect in hundreds of stores in as little as 1 minute! Free returns. Google “ Welsh arch” , and no you don’t need a lintel. Home Forums > Screwfix Community Forum > Builders' Talk > Lintel. when you open the door. It is possible to span 3 metres easily with the correct lintel. 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). From the outside the lintel looks entirely intact but obviously the inside could have rusted and failed and be pushing outwards. Break out the lintel with a kango in pieces. #2. The dimensions of the existing wooden lintel is: Width 1100mm. Originally it was an open fire when the house was built (around 1850) and then circa 1990s it was changed to a wood burner. When he finally turned up on site, he said the existing lintel wasn’t big enough and we’d need a new lintel. A lintel, whether concrete,metal should have a minimum bearing of 150mm bearing each end,now't wrong with a lintel having a bit more support each end. Every builder knows that bricks will, to some extent, support themselves in the short term and there is now a device called a Joint Expansion Tool which you place in the perps and wind up to tension the bricks to stop them dropping. 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. A window company I've used before gave me a reasonable quote for the doors, but they've given me an estimate of £1,500 - £2k to put a lintel in. It'll need to be galvanised so the exposed soffit doesn't rust. I use a 4mm cobalt bit from the competition (you get a pack of two for a few pence). I’m widening the door frames in my house to 76cm ones. Rebar is just steel, so any metal drilling bit should be fine. 64m2. 5 for the floor load and doesn't leave much for the brickwork and any roof loads on the wall. 2m. 3 high, max 4 metre to apex roof. #2. On the ones without a steel lintel a roll of 18inch Hyload could be used to form a tray, or sometimes lead. I would like to replace the lintels as it got a crack. Why do you think you need a steel beam? If there is just a roof above it, then a 200mm x 45mm section timber should be fine. 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. Sabrefix Gallows Brackets Galvanised Hot Dipped 490mm x 50mm 2 Pack. Notnowvicar, Feb 23, 2023. So the lintel manufacturers are more likely the ones spreading such tosh. Hi all, I'm moving a door opening 350mm to one side and need to know what lintel to use, the current door way was put in years ago to access the garage and goes through light block wall, above it is 1 and 12 light block which support 3. Any help here would be much appreciated. So it is one of their lightweight ranges. JED, Dec 10, 2004. sospan Screwfix Select. Hello everyone, I’m after a bit of advice, please. If i use a catnic lintel then you will be able to see the underside of the lintel rather than the stone head. neilbick New Member. Screwfix Community Forum. com. the reinforcement steel inside) that is holding the wall above it. Buy Fixings & Fastenings at Screwfix. 8 m wide. Such as flat steel (on the outside wall) inserted all the way underneath the present lintels, thereby bridging the centre part - with the new window underneath to add additional support. from $393 62 from. Ask a question. 8 x 0. The correct way is to butter the top of the Lintel/RSJ/Beam with a decent mortar mix say 4 to 1 sand/cement, then carefully lift it into position and have a third pair of hands pinching the acrows up until they’re nice and tight, not too tight though otherwise you’ll start disturbing brickwork up above, then jam slate or. However this only appears to work for some drill holes and not for others. Bed it in nicely, and allow the mortar to set for. The easiest/most effective solution is to drill into the lintel. trowel New Member. Therefore this padstone doubles the area of the steel's footprint. I would just wrap the pipes in rockwool. 4 kN/m (26kN/m if the span is 1. Then cutting out and removing old lintel/s, which will mean loosening course of bricks above. Bearing should be 'solid'. KBJ Active Member. If there is a gap you can get a frame add-on/extension to fill the gap if you're keeping the existing frame. ProDave New Member. The old screws are 40mm so can't quite figure out how they went in and the way forward. 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. Hausfix, Sep 15, 2022. Hello. Another possibility is a lintel has cracked but again this is major issue not a £350 invisible repair! Honestly I can not imagine any work that a) a window company would do 2) would cause no disruption 3) would only cost £350. CJR1989 New Member. I would have said not to be concerned but the crack is also on the. Here are the pictures. My single story extension shed has had the lintel above the door entrance raised from 1. 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 is a wooden lintel above the door which is bent and starting to rot due to leaking gutter which washed rain water down the side of the building, this has been sorted. Phones getting used. This lintel will be re used for one window. I saw three of the four lintels that the builder took out. Found a company called watco that do a 2 part epoxy resin filler for. PFC Plates - Galvanised Steel. It’s flat and not L-shaped. JPG File size: 186. 75 x 6. Delivery 7 days a week. If you haven't got much depth on the wall above window you may get away with using some 6mm board screwed to the front of the lintel so it doesn't stick proud of existing finish. Fixings not included. What about the lack of support over the kitchen window and double patio doors? Screwfix Community Forum. Tags: lintel; shed roof; Jugs69 New Member. . 32 mm. The manufacturer will be able to tell you the deflection tolerances. So you need to find a steel stockholders / fabricators (London's not my area - sorry) and ask them for 2 n. In the days before lintels, you will always see a relief arch about 4 courses above an opening. The lintel only needs to support 4 courses of bricks above the door. Fixings not included. The chimney is now completely out and supported in the loft but the. I understand the loading to be 1. Design will show that a 65mm p/s concrete lintel is ok - cost about £10. All the pressure needs to be down not forwards or back. OP you're overthinking. Could i chase the lintel for some pvc capping or. The stone lintel could be removed and repaired with threaded rods through from left to right, tighten the nuts and pull the lintel back together, re fit the lintel as decoration only. The project has secured Building Consent from local planning although there has been no. The house is in a close of about 30 houses and they've all got double glazing with a upvc sill and external concrete lintel with no posts so I don't know what to think. I've uncovered the metal lintel (installed in 1990) and it looks pretty rusty. or. 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. if the 47kN lintel is up to its capacity and spanned say 3m. Just buy a small cheap one if you don't have one. There is a very small area of the wooden lintel that seems damp and soft (see the left of. They would be cracking or sagging by now if the lintels aren't enough. S Builders New Member. CLEARANCE. 7m above the sewer then assuming the lines of influence spreadout at 45 degrees then a 3. Wayners Screwfix Select. The plate is rotten as well, along with some of the joists which are also being replaced. 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. Aaron Mcculla New Member. forever i said! I'm hear all week! Major Mal Funxion, Jun 26, 2008 #1. You’re not the source at all mate, sorry for souring your thread, ask away all you like. stevie22 Screwfix Select. Galintel 75mm x 10mm x 1600mm Galvanised Flat Lintel Flat. Lintel and Cavity Tray The lintels are obviously different types. Hi. Also it'll look odd having a lintel designed for a 2. 5kn. stevie22 Screwfix Select. 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. Jord86 Screwfix Select Some pictures of the whole wall would be helpful. If you must change it you will need to prop up the ceiling with Acros and a board, use a concrete lintel and slate to wedge the bricks up. 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. Steve, just so you know the theory of the concrete lintel. My problem is a long concrete/stone lintel sitting above old metal window and ill fitting wooden door to workshop part of the building. 65x1. Hammerman99, Mar 4, 2012. That would be plenty to go under it and still leave you about 80 - 55mm of lintel to put the acrows onto. OP you're overthinking. etc. Just 3x beams/lintels going in, 1x for the double garage opening of 4m, 1x for the middle span 5. Nick058162 New Member. 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. You select your lintel based on loading it needs to resist Based on your description you will need a lintel that can take Area of a 45 degree triangular load above lintel = width x half the height = 1. Remove loose paint and wire brush lintel, then dust down. I want to have this 4' hatch in a load bearing wall where the lintel is some 3' down from the ceiling. I’ve got concerns about how the lintel has been supported. If you hit the rebar in the lintel when drilling in to the concrete lintel, its integrity will be compromised. This is why is quite important to drill a pilot hole 1mm less than the screw to get a good fixing. Buy Builders Metalwork at Screwfix. 35kg/m2. 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.