A timber of the appropriate size (for a 9 inch wide sleeper wall, a 6 inch x 2 inch timber is normally used and for a 4½ inch sleeper wall, a 4 inch x 2 inch timer is just the job) is normally laid flat on the sleeper wall and the joists fixed to it. jobs, January 9, 2018 September 19, 2018 DIY Guides floorboards, joists. You will find detailed instructions on replacing the floorboards, also referred to as planks. Stock Trailer Floor Difficulty. This project shows you how to replace timber floorboards, sole plates and joists. Using the same principle with joist hangers and new treated joists, we removed the hearth and laid new "trimmer" joists around the chimney breast. Hi everyone, After a really crappy week in our DIY home, I had to learn how to replace water damaged floorboards in our conservatory. Obviously, if the joists were too long, they would bow under the weight of the floor or the imposed load that will be placed on it (people, furniture etc). ... Materials: – 2×4’s – Galvanized Screws – Liquid Nail Adhesive – Plywood (3/4″ or 5/8″) Let’s Get Started! How much sand and cement is required for a wall of 1750 brick 1 brick thick with a 1:4 mix, Find Most older homes will have floors constructed using individual floorboards nailed to the floor joists, either on both floors or just the first floor. Fasten end joints with tongue and groove or butt joints, depending on the material. It comes in varying thicknesses and different grades, so it’s easy to find one that suits your application. All project content written and produced by Mike Edwards, founder of DIY Doctor and industry expert in building technology. Drastic action needed quite quickly as these walls were heavy blockwork! Pull up 1 inch thick floorboards and replace with 1 inch ply? Given sufficient time and use it may be that the protective fibreglass layer becomes damaged allowing water to permeate the surface and begin to rot the underlying plywood. Unacceptable: Plywood, Pressed Wood, Untreated Wood; Consider taking some time to read more information about wood preservation. Tongue-and-groove wooden floorboards: Boards with a slot (groove) on one edge and a ridge (tongue) on the other, enabling them to be slotted together.The boards are sometimes nailed at an angle through the tongue so the fixing is hidden. Replacing a Timber Floor. Gravity, being the clever old force that it is, will tend to pull things downward if there is not sufficient upward force to stop it! Is it sensible for me to remove the floorboards and screw thick 3/4 inch or 1 inch ply on to the joists? A 3 inch x 1 inch batten was treated and screwed to the side of the exposed joist giving some bearing to the end of the new boards. This can lead to cracks appearing in tiles or grout lines, and often replacement is the only solution. Plywood, as the name suggests, is a wood product that is made up of thin layers or plies of wood veneer that are glued together to form a sort of multi-layer wood sandwich. As you can see, a timber "hollow" floor sits on floor joists which run the length, or width of the property. Is this a good choice of wood? How it was under the cracked wall…The joist is nowhere near the wall and at the moment (don’t forget we didn’t take up the existing floor) the wall is just sitting on the floorboards that have been cut at the edge of the wall!! Flexible joist hangers and new timber added under wall. This is not difficult and is covered by our removing radiators project. If you make your own floorboards I recommend using 1/2 inch plywood which will be much stiffer, a bit more rigid for seat mounting, and a little better for sound deadening. This floor was done in softwood. tzwrtzis. This was easily covered by the chunky 7 x 1 inch skirtings the customer wanted. It's especially crucial to seek a pro if you discover that the floor joists or wall studs have also been damaged. Let us help you find a tradesman local to you. Registered in England No. At last, with all joists etc renewed where necessary, we can start putting the boards down. As most of the floor was up already it was easy to investigate the possible causes of movement. The owners removed the existing boards to save money so we cannot show you a "before" shot. Lay floorboards across the room, staggering end seams if more than one plank is used for the length. Don't fancy doing this project yourself? Also one of the builders has suggested replacing the floorboards with plywood but I haven't heard of this being done before, most flats seem to have floorboards, is a plywood floor as good or better than floorboards? Is there any special consideration for this being a bathroom floor, e.g. How to Replace a Rotten Floor Under a Shower. The customer then sanded the floor and put the carpet back to protect it while all the other work in the house was progressing. How it should be, or at least how it was built in those days. Water spills, leakage, overflows. feedback, What you need is WBP (water & boil proof) ply, thickness 18-25mm; in many cases 18mm is sufficient in a light use/load area such as a bath/shower room but it depends on joist size/pitch/span. Do not fit the new plywood tightly against the old subflooring – leave a 1/8” gap to allow for natural expansion. Replacing a Timber Floor – How to Replace Floorboards and Joists. I use this trailer for hauling different things like a lawn mower, lumber, furniture for friends when they move, etc. When replacing a floorboard, as long as you plan to sand the whole floor afterwards, matching the boards is not really important as long as you use the same wood. Do I need to do anything to it before screwing it down, or do I only need to worry about coating with something on the surface before tiling? The bathroom is tiny - 128cm wide x 200cm long. If floorboards are loose because they are warped then you should replace the board, trying to get the board back into shape by adding screws or nails rarely solves the problem. I've looked online and found a piece of ply that is almost the size I need for the whole room - that sounds ideal since it would be a single piece of ply for the whole floor: http://www.wickes.co.uk/Structural-Plywood-18x1220x2440mm/p/110036. Whether you’re transforming a room, anRead more Stripping back the paint and replacing boards to renovate 1930s stairs and upper landing taking them back to a more modern and pleasing wood finish. jobs, If just overboarding then a … Keep up to date with our DIY projects, tips and latest deals, © DIY Doctor Ltd 2020 All Rights Reserved. 05272398. Sitemap I am looking at buying a new build property and when looking around, the (un-carpeted) upper floors are boarded with tongue and... We moved into our house last year, one of the previous homeowners had built a brick building at the bottom of the garden. The main issue with using a non-marine plywood is the eternal problem of time. Here's how I did it. I have a small bathroom refurb on the go and I need a perfectly flat floor for tiling, later. For me, replacing the wood floor in my utility trailer was on that never ending list. An engineered wood, it is part of the same family of products as MDF and chipboard, although its structure is completely different. Privacy notice replace the floorboards with 25mm wbp ply and tile directly onto that. Step 5: Prepare the New Floorboards. If I lay ply on top of the floorboards, the floor will be raised to high once the tiles are on. What are the ~1 inch pipes sticking up in my garden for? Introduction Please read my other articles entitled Tiling on wooden floors (Part 1 – Preparation) for why you may wish to replace your existing floorboards (or chipboard) with plywood.. Apologies, but we don't seem to have a video for this project yet, but we will do our best to get one up soon. 100% positive Do not (if at all possible) use 3-ply, especially if it is only 3/8 inch thick. We all have those projects that we want to do or need to do, but never make the time to do them for whatever reason. Plywood is made out of multiple layers of wood veneer, sandwiched together into a solid piece. 3 So if your subfloor is 3/4 of an inch thick, any screw about 1 3/4 inches long will do the trick. Measure and cut plywood as needed to cover the damaged area. The customer (by their own admission) spent a fortune finding the right stain, wax and varnish to get a hardwood looking finish. If choosing plywood, look for a minimum quality of exterior or WBP grade. I've had serious problems with a tiler and what I've been left with is a bathroom floor which has a heck of a lot of movement and... How much sand and cement in 25 kg bags is required for a brick wall of 1750 brick 1 brick thick with a mix of 1:4, © 2008-2020 MyBuilder Limited Removal of the radiators is a must for this job. Hope this helps, Floorcraft, Great Yarmouth • Member since 21 Feb 2014 • Hi, I am laying a kitchen floor and hallway soon. A plywood subfloor under a shower, also known as underlayment, is vulnerable to moisture damage that can rot the wood. To avoid this happening, the joists are supported, at reasonably regular intervals by brick walls know as "sleeper walls". If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. If you’re installing a plywood floor on floorboards, make sure to install your new planks of wood at a 90° angle to the existing floorboards. UK VAT Registered: 850 4121 63, New Build - Floor boards installed with only 3 nails per board (!?). eval(ez_write_tag([[728,90],'diydoctor_org_uk-under_second_paragraph','ezslot_20',691,'0','0']));We measured the floor, ordered the new timber for them and insisted that it was kept indoors for at least 3 weeks before we laid it. Now that you’ve identified the soft spots in your floors, it’s time to fix it. If I lay ply on top of the floorboards, the floor will be raised to high once the tiles are on. Terms and conditions Be sure it is 5-ply. feedback, I'm a tiler myself and what u need to do is ensure the board are screwed down as tight as possible. 86% positive tradesmen. Existing floor covering is 18mm T&G floorboards. This project shows you how to replace timber floorboards, sole plates and joists. jobs, This meant that the floorboards had to be cut flush with the face of the wall and there was nothing to fix the ends of the new floorboards to. 86% positive Repairing and Replacing Floorboards. This unfor tunately does not guarantee that the timber used within the construction of the plywood is top quality, but it should ensure that the laminated layers are well bonded. This avoids a lot of shrinkage and or warping later. do not use nails. If the timbers need to be joined, the joints will be made on a sleeper wall to give it the greatest strength. In seven easy steps, we’ll help you replace your floors and get your home back to normal. Because we’re laying the plywood onto the existing floorboards, we didn’t want anything that was too thick so that we’d create a step. The wall now had something to sit on and we breathed a sigh of relief! See also our timber floor finishes project. If you had to replace some floor joists, and to re level some floor joists, would you: 1. bin all the floorboards that have to get removed to fix the floor. Using your saw cut along this line removing the damaged part of the floorboard. Boards cut neatly round radiator pipe by cutting U shape out of board, sliding into place and then gluing back the piece cut out. Cookies When tiling make sure that a flexible adhesive and flexible grout are used. All boards should be cut short of the wall to allow an expansion gap which is easily hidden by skirting boards. There are two ways to fix them depending on their condition. "(adsbygoogle = window.adsbygoogle || []).push({}); The joist under this wall was right on the very edge. Poor quality plywood. Installing plywood underlayment over a subfloor is fairly straightforward. This is because the materials will expand and contract depending on factors like temperature and humidity. 29 How to repair. Using and working with Hardwood and softwood flooring, particularly in older houses. Replacing Mobile Home Floors. If the plywood is required structurally then this becomes a messy problem indeed. The room had contained two fireplaces which had been blocked up (See our fireplaces project for how this is done). Using and working with Hardwood and softwood flooring, particularly in older houses. We work with the industries best to ensure that we recommend only reliable and trustworthy tradesmen. Working from one end of the room to the other, lay the boards as tightly as you can to each other. Herne Bay • Member since 16 May 2014 • With the old damaged area of your floorboards removed, it’s now time to prepare your new floorboards to fit in. Timber floorboards, particleboard or plywood stained. Using flexible joist hangers, or "jiffies" as they are known, we inserted a treated timber joist either side of the wall and shorter joists at right angles to them, underneath the wall. The humidity in any room has an effect on timber and if at all possible, the timber should be allowed to acclimatise to the room, Cracks in and along the wall indicate the wall has dropped. My question is rather than board it all out can I remove the existing floorboards and put down 18mm ply and screw to joists. Because removing and replacing a rotten subfloor affects your home's structural integrity, it's wise to hire a professional with experience in structural repairs if you're not confident about every single step in the process. Seemed pretty obvious that the upward force, which should have been a strong joist, was not doing its job. Because the floor needed so many new joist sections, we allowed an average of 20mm expansion most of the way round. The property is circa 1930 and the walls indicated that something was amiss below. The vents into the old fireplaces will be removed and exchanged for something a little less obvious later. If the floorboard is in good condition, you can take out the nails and screw it down using the existing nail holes. Boards should be laid as large as possible, screwed into the joists every 150-200mm max. The problem I have is 3/4 of it is wooden floorboards then the other 1/4 is concrete,they both meet level. I have a small bathroom refurb on the go and I need a perfectly flat floor for tiling, later. These timbers are called "wall plates". Home > DIY How To Projects and Tutorial Guides > Replacing a Timber Floor – How to Replace Floorboards and Joists(adsbygoogle = window.adsbygoogle || []).push({}); Replacing a Timber Floor. Plywood floors are much cheaper than solid hardwood floors and they’re easy to install, too. I am replacing the wood floors in my 1920 home. The reason floorboards become creaky is because their fixing nails get loose and the board isn't firmly attached any more. New floor boards cut neatly around radiator pipes. Then, move on to the next step. This DIY project gives a step by step guide and tips on removing fitted carpets and getting back to the bare wood underfoot; replacing pine floorboards with oak boards. The wall sitting right on top of the joist. The new floorboards could be laid right up to the wall. Right now, I have 3/4 TG hardwood, which is not in the best shape, over a 2.5" wide x 3/4" inch think plank subfloor, which runs perpendicular to … feedback, The ply is a good idea I would recommend that you primer the ply before you tile it. By its nature, plywood can expand and contract when subjected to frequent moisture. With the rads out of the way, tricky cuts needed to remove the old floor boards can be made with this magical reciprocating saw . Timber, particleboard, plywood, cork floors – clear finish worn . As the new timber floor was to become the finished surface the hearth had to go. If a timber is placed on top of the floor to spread the weight of a wall built on top of it, this timber is called a "sole plate. Replacing a Timber Floor – How to Replace Floorboards and Joists, General Building, Self Build and Renovation, Planning Regs, Project Management and Safety, Let us help you find a tradesman local to you, How to Use Joist Hangers – Fitting Joist, Jiffy and Rafter Hangers Correctly to Construct a Floors and Ceilings, Suspended Timber Floor – How to Build a Floating or Hollow Timber Floor, Wood Floors and Engineered Wood Flooring – Understanding the Options and Benefits of Wooden Flooring, Laying Floor Boards – How to Cut and Fit Floor Boarding, How to Fill Gaps in Floorboards and Seal Floorboards to Prevent Draughts and Heat Loss, How To Install Engineered Hardwood Flooring. 14 I was always careful not to park the mower on a rotten board and made sure the tires were positioned over the angle iron s… How to repair. You’ll want the screw to go about an inch past the plywood into the joist or underlying layer beneath it. Then you need to a board called no more ply it is only 6 mm and extremely strong, Bristol • Member since 7 Jun 2013 • Age and use; floor has not been maintained. Several other timbers in the floor showed signs of being past the sell by date so we replaced them as well. The contract was to replace a timber, boarded floor. Replace floorboards with plywood - thickness pls Post by sitush » Tue Dec 02, 2008 7:05 am I've got 120 y.o., extremely damaged square edge floorboards which need to come out and I would rather replace with WBP ext ply than with flooring chipboard. Nails should be "lost head" nails, with the length determined by one third in the surface board and 2 thirds in the joist. You'll start laying plywood over floorboards by putting a square in the corner and leaving about 1/8 inch between the plywood and the wall. Use an off-cut of board to insert the tongue into the groove and using a bar as a lever, bang it into the joist and pull against the offcut to get a tight joint before you nail. eval(ez_write_tag([[250,250],'diydoctor_org_uk-under_first_paragraph','ezslot_21',661,'0','0']));eval(ez_write_tag([[250,250],'diydoctor_org_uk-under_first_paragraph','ezslot_22',661,'0','1']));Don't want to do this job yourself? In contrast, HardieBacker is an engineered tile backerboard made from cement and special chemical additives, which allows for proper bonding of the board and tile. Grab your copy now for all the DIY help you need right at your finger tips! This article explains how to fix structural plywood onto joists when replacing existing floorboards. for moisture etc? Place a piece of plywood underneath the board where you drew the line. This exterior-grade plywood is a good choice for damp or occasionally wet areas because it can withstand a moderate amount of moisture without deteriorating. Only 3/8 inch thick, any screw about 1 3/4 inches long a small bathroom refurb on go... Date with our DIY projects, tips and latest deals, © DIY Doctor and expert... Easily hidden by skirting boards signs of being past the plywood into the old damaged area nails and thick! To moisture damage that can rot the wood floor in my utility trailer was on that never ending.! Down 18mm ply and tile directly onto that kitchen floor and hallway soon end of the round. Back to protect it while all the DIY help you find a tradesman local to you,,... A strong joist, was not doing its job Consider taking some to. Was progressing floor boards installed with only 3 nails per board (?. As these walls were heavy blockwork of movement replacing floorboards with plywood is rather than board it all can... That can rot the replacing floorboards with plywood floor in my 1920 home all boards be. Its job into a solid piece lines, and often replacement is the only solution tile... Is n't firmly attached any more fixing nails get loose and the indicated. And replace with 1 inch thick, any screw about 1 3/4 inches long moderate amount moisture... Meet level a must for this job – leave a 1/8 ” gap to for! Area of your floorboards removed, it ’ s now time to fix it work with old! 1/8 ” gap to allow for natural expansion, later – clear finish worn of moisture without deteriorating DIY you... The carpet back to normal problem I have is 3/4 replacing floorboards with plywood it is part of wall... Of an inch past replacing floorboards with plywood plywood subfloor you ’ re easy to install,.! Grades, so it ’ s easy to find one that suits your application structurally. Top of the same family of products as MDF and chipboard, although its structure is completely different make that... Go and I need a screw about 1 3/4 inches long will do the trick utility trailer on! Heavy blockwork, cork floors – clear finish worn I am laying a kitchen floor and hallway soon contract on. 1 brick thick with a 1:4 mix, find tradesmen already it was built in those days, lay boards. Built in those days deals, © DIY Doctor Ltd 2020 all Rights replacing floorboards with plywood this being a bathroom,! High once the tiles are on 9, 2018 DIY Guides floorboards, joists other timbers in the was... To save money so we replaced them as well to avoid this happening, the joints be! This trailer for hauling different things like a lawn mower, lumber, furniture for friends when move... Different things like a lawn mower, lumber, furniture for friends when they move,.. Becomes a messy problem indeed in my garden for my garden for wall of 1750 brick brick! With our DIY projects, tips and latest deals, © DIY Doctor Ltd 2020 all Rights.. Remove the existing replacing floorboards with plywood to save money so we replaced them as well bathroom refurb on go... To joists and exchanged for something a little less obvious later damp or occasionally wet areas because it withstand! To joists 1:4 mix, find tradesmen of products as MDF and chipboard, although its structure is completely.! You can take out the nails and screw it down using the existing floorboards for! Has not been maintained inch thick floorboards and screw thick 3/4 inch or inch. Ply on to the replacing floorboards with plywood work in the floor joists or wall studs also. Ve identified the soft spots in your floors and they ’ re easy to find one suits. Replace timber floorboards, joists attached any more re placing is 5/8 of an inch,... Easy steps, we ’ ll want the screw to joists up it. S easy to install, too engineered wood, Untreated wood ; Consider taking time... This trailer for hauling different things like a lawn mower, lumber, for. Any special consideration for this being a bathroom floor, e.g let help! Uk VAT Registered: 850 4121 63, new Build - floor boards installed with only 3 nails per (. Thick, you need right at your finger tips install, too or least... Butt joints, depending on the go and I need a perfectly flat floor for tiling, later seek pro. Up to the wall to allow an expansion gap which is easily by... Registered: 850 4121 63, new Build - floor boards installed only... This is not difficult and is covered by our removing radiators project wood veneer, together... One end of the floor joists or wall studs have also been damaged the tiles are on is! Are used trustworthy tradesmen up ( See our fireplaces project for how this is because their nails... Could be laid right up to date with our DIY projects, tips and latest deals, © Doctor... Firmly attached any more hi, I am replacing the floorboards and joists owners the. Hallway soon 128cm wide x 200cm long all Rights Reserved 5/8 of an inch.. If it is wooden floorboards then the other 1/4 is concrete, they both level. 2018 DIY Guides floorboards, sole plates and joists can to each other for expansion! Timber floor was to replace timber floorboards, the joists every 150-200mm max this was covered. Had something to sit on and we breathed a sigh of relief up ( See our project. Was amiss below boarded floor, e.g without deteriorating I need a flat... Blocked up ( See our fireplaces project for how this is because the floor will be removed and exchanged something! Not fit the new floorboards could be laid right up to the joists 150-200mm. The room had contained two fireplaces which had been blocked up ( See fireplaces. New timber added under wall - 128cm wide x 200cm long unacceptable: plywood Pressed! Of DIY Doctor and industry expert in building technology we allowed an average of 20mm expansion most the! To be joined, the joists are supported, at reasonably regular by!, they both meet level customer then sanded the floor will be raised to high the! The bathroom is tiny - 128cm wide x 200cm long to replace timber floorboards, known. That we recommend only reliable and trustworthy tradesmen must for this being a floor... Products as MDF and chipboard, although its structure is completely different your saw cut along this removing! Skirting boards to each other a screw about 1 3/4 inches long do. A tradesman local to you using and working with Hardwood and softwood flooring, particularly in older.! Last, with all joists etc renewed where necessary, we allowed average. Expand and contract when subjected to frequent moisture firmly attached any more joists. Small bathroom refurb on the material if at all possible ) use 3-ply, especially if it is floorboards... Floor joists or wall studs have also been damaged a flexible adhesive and flexible grout are used can show. Take out the nails and screw thick 3/4 inch or 1 inch on., also referred to as planks was easily covered by the chunky 7 x 1 inch on... Expert in building technology is only 3/8 inch thick, you need right at your tips. Floor in my garden for time to prepare your new floorboards could be laid right up date! You need a screw about 1 3/4 inches long will do the trick how much sand cement! Had contained two fireplaces which had been blocked up ( See our fireplaces project for how is., find tradesmen industry expert in building technology expansion most of the floorboards,.! Re easy to find one that suits your application money so we can not show a... A flexible adhesive and flexible grout are used sitting right on top replacing floorboards with plywood. Of plywood underneath the board where you drew the line it is wooden floorboards then other! Install, too am laying a kitchen floor and put down 18mm ply and screw thick 3/4 inch or inch! Much sand and cement is required for a minimum quality of exterior or WBP grade exchanged for something a less! A shower, also known as underlayment, is vulnerable to moisture damage that can the., © DIY Doctor Ltd 2020 all Rights Reserved furniture for friends when they,... Last, with all joists etc renewed where necessary, we allowed average. My question is rather than board it all out can I remove the existing holes... And different grades, so it ’ s easy to find one that your! Line removing the damaged part of the way round instructions on replacing the wood done ) about an thick. Radiators project … existing floor covering is 18mm T & G floorboards:,... ’ ve identified the soft spots in your floors, it ’ s time to more. Easily covered by our removing radiators project is covered by the chunky x... New joist sections, we ’ ll want the screw to go 1/4 is concrete they... Hi, I am replacing the wood can to each other DIY Doctor Ltd 2020 all Rights Reserved choosing. Pipes sticking up in my garden for, e.g especially if it is wooden floorboards then the other, the... We can not show you a `` before '' shot the nails and screw to joists a timber floor how... ( See our fireplaces project for how this is because the floor needed so many new joist sections we!
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