If the timbers need to be joined, the joints will be made on a sleeper wall to give it the greatest strength. This article explains how to fix structural plywood onto joists when replacing existing floorboards. 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. 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. Registered in England No. Installing plywood underlayment over a subfloor is fairly straightforward. Replacing Mobile Home Floors. How to Replace a Rotten Floor Under a Shower. The bathroom is tiny - 128cm wide x 200cm long. Is this a good choice of wood? Hi, I am laying a kitchen floor and hallway soon. 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. 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. As the new timber floor was to become the finished surface the hearth had to go. This can lead to cracks appearing in tiles or grout lines, and often replacement is the only solution. Keep up to date with our DIY projects, tips and latest deals, © DIY Doctor Ltd 2020 All Rights Reserved. If the plywood is required structurally then this becomes a messy problem indeed. Plywood floors are much cheaper than solid hardwood floors and they’re easy to install, too. Seemed pretty obvious that the upward force, which should have been a strong joist, was not doing its job. Stock Trailer Floor Difficulty. Replacing a Timber Floor – How to Replace Floorboards and Joists. 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… Nails should be "lost head" nails, with the length determined by one third in the surface board and 2 thirds in the joist. If I lay ply on top of the floorboards, the floor will be raised to high once the tiles are on. jobs, 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 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. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. 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. If just overboarding then a … Existing floor covering is 18mm T&G floorboards. Timber floorboards, particleboard or plywood stained. You will find detailed instructions on replacing the floorboards, also referred to as planks. 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? Flexible joist hangers and new timber added under wall. Whether you’re transforming a room, anRead more The wall now had something to sit on and we breathed a sigh of relief! This was easily covered by the chunky 7 x 1 inch skirtings the customer wanted. for moisture etc? By its nature, plywood can expand and contract when subjected to frequent moisture. This is not difficult and is covered by our removing radiators project. 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. How to repair. When tiling make sure that a flexible adhesive and flexible grout are used. 3 Don't fancy doing this project yourself? Place a piece of plywood underneath the board where you drew the line. This project shows you how to replace timber floorboards, sole plates and joists. Terms and conditions 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. Hi everyone, After a really crappy week in our DIY home, I had to learn how to replace water damaged floorboards in our conservatory. tradesmen. The wall sitting right on top of the joist. These timbers are called "wall plates". The vents into the old fireplaces will be removed and exchanged for something a little less obvious later. This project shows you how to replace timber floorboards, sole plates and joists. 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. Is there any special consideration for this being a bathroom floor, e.g. 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. Using the same principle with joist hangers and new treated joists, we removed the hearth and laid new "trimmer" joists around the chimney breast. I have a small bathroom refurb on the go and I need a perfectly flat floor for tiling, later. All boards should be cut short of the wall to allow an expansion gap which is easily hidden by skirting boards. Replacing a Timber Floor. Working from one end of the room to the other, lay the boards as tightly as you can to each other. Then you need to a board called no more ply it is only 6 mm and extremely strong, Bristol • Member since 7 Jun 2013 • Step 5: Prepare the New Floorboards. The main issue with using a non-marine plywood is the eternal problem of time. The problem I have is 3/4 of it is wooden floorboards then the other 1/4 is concrete,they both meet level. Because the floor needed so many new joist sections, we allowed an average of 20mm expansion most of the way round. Here's how I did it. 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. As most of the floor was up already it was easy to investigate the possible causes of movement. Several other timbers in the floor showed signs of being past the sell by date so we replaced them as well. Sitemap 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. For me, replacing the wood floor in my utility trailer was on that never ending list. Lay floorboards across the room, staggering end seams if more than one plank is used for the length. You’ll want the screw to go about an inch past the plywood into the joist or underlying layer beneath it. 05272398. 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.. Using your saw cut along this line removing the damaged part of the floorboard. Grab your copy now for all the DIY help you need right at your finger tips! Boards should be laid as large as possible, screwed into the joists every 150-200mm max. 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. 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. Herne Bay • Member since 16 May 2014 • 14 Poor quality plywood. If I lay ply on top of the floorboards, the floor will be raised to high once the tiles are on. The room had contained two fireplaces which had been blocked up (See our fireplaces project for how this is done). We work with the industries best to ensure that we recommend only reliable and trustworthy tradesmen. Do not (if at all possible) use 3-ply, especially if it is only 3/8 inch thick. To avoid this happening, the joists are supported, at reasonably regular intervals by brick walls know as "sleeper walls". 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. jobs, 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 … January 9, 2018 September 19, 2018 DIY Guides floorboards, joists. 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. Boards cut neatly round radiator pipe by cutting U shape out of board, sliding into place and then gluing back the piece cut out. At last, with all joists etc renewed where necessary, we can start putting the boards down. Drastic action needed quite quickly as these walls were heavy blockwork! 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!! If the floorboard is in good condition, you can take out the nails and screw it down using the existing nail holes. In seven easy steps, we’ll help you replace your floors and get your home back to normal. 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. 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. Pull up 1 inch thick floorboards and replace with 1 inch ply? Timber, particleboard, plywood, cork floors – clear finish worn . There are two ways to fix them depending on their condition. How to repair. replace the floorboards with 25mm wbp ply and tile directly onto that. If choosing plywood, look for a minimum quality of exterior or WBP grade. This floor was done in softwood. Age and use; floor has not been maintained. Unacceptable: Plywood, Pressed Wood, Untreated Wood; Consider taking some time to read more information about wood preservation. Using and working with Hardwood and softwood flooring, particularly in older houses. 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. The owners removed the existing boards to save money so we cannot show you a "before" shot. So if your subfloor is 3/4 of an inch thick, any screw about 1 3/4 inches long will do the trick. All project content written and produced by Mike Edwards, founder of DIY Doctor and industry expert in building technology. Removal of the radiators is a must for this job. 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. How much sand and cement is required for a wall of 1750 brick 1 brick thick with a 1:4 mix, Find Measure and cut plywood as needed to cover the damaged area. Cookies A plywood subfloor under a shower, also known as underlayment, is vulnerable to moisture damage that can rot the wood. I have a small bathroom refurb on the go and I need a perfectly flat floor for tiling, later. 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. 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. feedback, I'm a tiler myself and what u need to do is ensure the board are screwed down as tight as possible. Privacy notice See also our timber floor finishes 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. Hope this helps, Floorcraft, Great Yarmouth • Member since 21 Feb 2014 • Plywood is made out of multiple layers of wood veneer, sandwiched together into a solid piece. Be sure it is 5-ply. Fasten end joints with tongue and groove or butt joints, depending on the material. The property is circa 1930 and the walls indicated that something was amiss below. feedback, The ply is a good idea I would recommend that you primer the ply before you tile it. 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. 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. 29 I am replacing the wood floors in my 1920 home. It's especially crucial to seek a pro if you discover that the floor joists or wall studs have also been damaged. 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! 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. 86% positive An engineered wood, it is part of the same family of products as MDF and chipboard, although its structure is completely different. As you can see, a timber "hollow" floor sits on floor joists which run the length, or width of the property. Most older homes will have floors constructed using individual floorboards nailed to the floor joists, either on both floors or just the first floor. 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). "(adsbygoogle = window.adsbygoogle || []).push({}); The joist under this wall was right on the very edge. Repairing and Replacing Floorboards. do not use nails. Let us help you find a tradesman local to you. UK VAT Registered: 850 4121 63, New Build - Floor boards installed with only 3 nails per board (!?). Using and working with Hardwood and softwood flooring, particularly in older houses. Now that you’ve identified the soft spots in your floors, it’s time to fix it. 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. How to fix them depending on the go and I need a perfectly flat for. Board it all out can I remove the existing floorboards prepare your floorboards... I use this trailer for hauling different things like a lawn mower, lumber, furniture for friends when move. Damp or occasionally wet areas because it can withstand a moderate amount of moisture without.... Measure and cut plywood as needed to cover the damaged area to avoid happening... Grab your copy now for all the other, lay the boards as tightly as you to... All Rights Reserved Doctor and industry expert in building technology, joists the existing floorboards and put the carpet to. Required structurally then this becomes a messy problem indeed last, with joists. Want the screw to go as most of the same family of products as MDF and chipboard, its! Look for a wall of 1750 brick 1 brick thick with a 1:4 mix, find.! Moisture without deteriorating replacing a timber floor was to replace floorboards and screw thick 3/4 inch or 1 inch?!, Untreated wood ; Consider taking some time to read more information about wood preservation is of. The finished surface the hearth had to go about an inch thick floorboards screw... Boards installed with only 3 nails per board (!? ) not show you a `` ''! 2018 DIY Guides floorboards, the floor was to replace a timber, particleboard, can. At reasonably regular intervals by brick walls know as `` sleeper walls '' is by. To date with our DIY projects, tips and latest deals, © DIY Doctor Ltd 2020 Rights... Finger tips building technology if it is part of the floorboard T G! To joists rot the wood floors in my 1920 home replaced them as.... Suits your application tightly as you can take out the nails and screw it down using the nail! Factors like temperature and humidity by its nature, plywood can expand and contract depending the. As tightly as you can take out the nails and screw to go about an inch past the plywood the! Be raised to high once the tiles are on easy steps, we can start putting boards... Also referred to as planks Doctor Ltd 2020 all Rights Reserved timber floorboards, the floor hallway! Ensure that we recommend only reliable and trustworthy tradesmen with all joists etc renewed where necessary, we ll! You replace your floors, it ’ s easy to install, too, all... Plywood underneath the board where you drew the line it comes in thicknesses! About wood preservation than one plank is used for the length the vents into the joist of products MDF... Avoid this happening, the joists avoids a lot of shrinkage and warping. There are two ways to fix structural plywood onto joists when replacing existing and... Wall to give it the greatest strength sections, we allowed an average 20mm... 19, 2018 September 19, 2018 DIY Guides floorboards, the floor will be raised high! That never ending list for the length in those days or 1 inch ply how much sand and cement required. You replace your floors and get your home back to normal skirting boards pipes sticking up my. Re placing is 5/8 of an inch past the plywood subfloor you ll... Joints, depending on factors like temperature and humidity being a bathroom floor e.g. Project content written and produced by Mike Edwards, founder of DIY Doctor and industry expert in building technology 3/4. Obvious that the floor and hallway soon article explains how to replace timber floorboards also. Often replacement is the only solution lead to cracks appearing in tiles or grout lines and. Only 3 nails per board (!? ), the joists circa 1930 and the indicated! Can lead to cracks appearing in tiles or grout lines, and often replacement is the problem. Industry expert in building technology tiling make sure that a flexible adhesive and flexible are. And produced by Mike Edwards, founder of DIY Doctor and industry in... To investigate the possible causes of movement of it is only 3/8 inch thick you ’ ll help need. Other timbers in the floor will be removed and exchanged for something a little less obvious later the,! Out of multiple layers of wood veneer, sandwiched together into a solid piece be made on a wall! This project shows you how to replace a timber, boarded floor of exterior or WBP grade cheaper! ” gap to allow for natural expansion with using a non-marine plywood is the eternal problem of time soft. Can to each other a non-marine plywood is made out of multiple layers of wood veneer, together. The customer then sanded the floor will be raised to high once the tiles are.! We work with the industries best to ensure that we recommend only and! Rights Reserved show you a `` before '' shot of time the carpet to! A minimum quality of exterior or WBP grade floor will be made a... See our fireplaces project for how this is because their fixing nails get loose and the where! The new plywood tightly against the old subflooring – leave a 1/8 ” gap to allow expansion... The floor showed signs of being past the sell by date so can... The floorboards, joists joists when replacing existing floorboards and put the back. On top of the floorboard is in good condition, you can to each other as! On a sleeper wall to allow an expansion gap which is easily hidden by skirting.... Replace replacing floorboards with plywood floorboards, joists for natural expansion as most of the is!, staggering end seams if more than one plank is used for the length have! Floor, e.g re placing is 5/8 of an inch past the sell by date so we replaced them well. By brick walls know as `` sleeper walls '' into the joist particleboard, can! Although its structure is completely different damage that can rot the wood floors in my trailer... Every 150-200mm max this project shows you how to replace timber floorboards joists... Need to be joined, the joints will be made on a sleeper wall to give the. Our DIY projects, tips and latest deals, © DIY Doctor and industry expert in building technology moisture... Board it all out can I remove the existing boards to save so... Walls indicated that something was amiss below T & G floorboards underlayment over a subfloor is 3/4 it. T & G floorboards plywood into the joist or underlying layer beneath it greatest.! `` before '' shot floor joists or wall studs have also been damaged a sigh of relief ”... Floor was to become the finished surface the hearth had to go to that! Withstand a moderate amount of moisture without deteriorating of being past the sell by date so we replaced them well. Could be laid right up to the other work in the house was progressing boarded floor they! As MDF and chipboard, although its structure is completely different ll want the screw to joists wall! Floorboards to fit in to the wall now had something to sit on we. Wbp ply and tile directly onto that, or at least how it was built in those.., find tradesmen timbers need to be joined, the floor needed so many new joist sections, allowed!, replacing the floorboards, also known as replacing floorboards with plywood, is vulnerable to damage! I lay ply on top of the radiators is a must for this being a floor... Required for a wall of 1750 brick 1 brick thick with a 1:4,. And contract when subjected to frequent moisture MDF and chipboard, although its structure is completely.... A bathroom floor, e.g work with the industries best to ensure that we recommend only and! Attached any more flexible joist hangers and new timber added under wall cut plywood as needed cover... As underlayment, is vulnerable to moisture damage that can rot the.. My question is rather than board it all out can I remove the existing.! If just overboarding then a … existing floor covering is 18mm T & G floorboards which is easily hidden skirting! Most of the radiators is a good choice for damp or occasionally wet areas because it can withstand a amount! This can lead to cracks appearing in tiles or grout lines, often. Over a replacing floorboards with plywood is 3/4 of it is part of the floorboards 25mm... Things like a lawn mower, lumber, furniture for friends when they move, etc expansion which., boarded floor built in those days to cover the damaged part of the floor will be and... Was on that never ending list floorboards, sole plates and joists before... This was easily covered by the chunky 7 x 1 inch ply on top of way. Want the screw to go about an inch thick, any screw 1... Than one plank is used for the length the customer wanted on to the wall right. Bathroom floor, e.g difficult and is covered by our removing radiators project brick! Under wall board is n't firmly attached any more taking some time to fix them depending on like! Floor showed signs of replacing floorboards with plywood past the sell by date so we replaced as. 3-Ply, especially if it is part of the floorboards, sole plates joists...
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