Tack a beam under the sagging joists. If your floor joist is an I-joist, for example, buy an I-joist. Floor Joists information Floor Sanding Hanging a Door Letterbox MDF Units Mortice Lock Partition & Stud Walls Partition Walls 2 Planing a Door Radiator Covers Security Bolts Shelf Fitting Skirting Boards Skirting Boards 2 Spindle Replacement Staircases and Banisters Yale Lock Wall Panelling Wooden Mouldings plumbing Boiler Change Boilers Info It could also be that your chimney or other flashings are not fitted correctly or have slipped out of their joints. The customer then sanded the floor and put the carpet back to protect it while all the other work in the house was progressing. Before beginning any renovation, step one is to have a professional inspect your floor joists. Be sure to wear protective eyewear to protect your eyes from flying sawdust and woodchips. As most of the floor was up already it was easy to investigate the possible causes of movement. Sometimes they're 24 inches apart, or 19.5 inches apart, but most floor joists are 16 inches apart. 05272398. The cost to replace all joists on one level of a typical home is $10,000 to $30,000, based on a 300-square-foot space. Make sure to read or listen for positive and negative reviews since the best opinions will come from those who were once in the same situation as you. Replacing an individual joist can cost anywhere between $100 to $300 per joist. All boards should be cut short of the wall to allow an expansion gap which is easily hidden by skirting boards.All floor boards now replaced. Cut a New Joist Image Credit: PICADORPICTURES, Shutterstock Before you get started, you'll need to cut a new joist to replace the one that is damaged. When installing a group of floor joists with a subfloor material like plywood nailed on top, you get a supporting framework called a floor system. Many factors come into play for floor joists and making the correct choices can help you reduce any potential problems in the long run. There are many types of fungus that make up the wet rot category, they include Coniophora Puteana and Poria Vaillantii with Coniophora being the main culprit. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e1\/Replace-Floor-Joists-Step-3.jpg\/v4-460px-Replace-Floor-Joists-Step-3.jpg","bigUrl":"\/images\/thumb\/e\/e1\/Replace-Floor-Joists-Step-3.jpg\/aid10976197-v4-728px-Replace-Floor-Joists-Step-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. Copyright 2023 House Grail. By using our site, you agree to our. Manage Settings According to our experts, the average cost of replacing floor joists is 400. The Products used in today's video are lists below as affiliate links.Want to send tools for Demo? This video goes through the. Most wood boring insects prefer timber with a fairly high moisture content. Pete has been working in the trades since high school, where he first developed a passion for woodworking. In another area of the house, due to water leakage and woodworms, the floor joists are damaged,. The new end is then fitted with the bars going in to slot. If youve already assessed your floor joists and realized they need replacement, consider a few things before restoration. When it comes to air bricks on the outside wall of your property you should ensure that there is at least one brick per 2.25 meters of outside wall length.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'diydoctor_org_uk-large-mobile-banner-2','ezslot_14',811,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-large-mobile-banner-2-0'); You will also have to ensure that any outside ground is significantly below any air bricks as if not, this may restrict air flow and damp issues may result. Drastic action needed quite quickly as these walls were heavy blockwork!Flexible joist hangers and new timber added under wallNew wall plate in position, Flexible joist hangers and new timber added under wall, 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 wall now had something to sit on and we breathed a sigh of relief! We and our partners use cookies to Store and/or access information on a device. Don't fancy doing this project yourself? Choosing the correct size for your floor joists is one of the crucial factors and the first step before the actual renovation. Once that was all in, I also put a floor stud in to attach the wall studs to. The fungus feeds off the wood making it soft and spongy. For the. NO EXPERIENCE REQUIRED!HOW TO FIX A ROTTEN FLOORReplacing / Repairing Rotten Floor Joists Under A WallNO EXPERIENCE REQUIREDA complete joist reinforcement effort is needed and fixing a squeaky, bouncy and unstable floor is an intimidating job that may seem overwhelming. You should only jack about 1/8 inch a day and then allow the beam to settle. Whether you are working on joists under the floor in your home, or joists outdoors such as underneath a deck, you will not be able to access them normally. You will need to prepare ahead for this project, whether you decide to tackle it independently or by hiring a professional. For more information on dry rot, go to our information on dry rot identification, causes and remedies. Generally, bedrooms and rooms with more traffic will have different pressure applied per square foot, so choosing the correct joist for your room is an essential step. Starting in a wet area of the timber, dry rot or Serpula Lacrymans is another fungus which literally sucks the life out of timber. UK VAT Registered: 850 4121 63, approx cost for replacement of rotton joists on ground floor, uneven timber upper floor due to masonry walls and sagging floor joists, Repair replace support damaged floor joists, Fix uneven floor on first floor - what is the best way and can we do it room by room while living in. The joist plate is bolted to the timber making the joint (B) as strong as the original joist. Also, check the subfloor for nails and other potentially dangerous leftovers. If so, then visit the PCA (Property Care Association) website here. In the UK, the average cost of repairing roof joists of a 3-bedroom home starts around 250-500 per beam. Nails should be "lost head" nails, with the length determined by one third in the surface board and 2 thirds in the joist.New floor boards cut neatly around radiator pipes, New floor boards cut neatly around radiator pipes, Boards cut neatly round radiator pipe by cutting U shape out of board, sliding into place and then gluing back the piece cut out. Hiring a skilled professional may be the best option if you are looking to have a spotless new floor joist. There may also be certain conservation rules that stipulate that any repairs should maintain an existing look.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'diydoctor_org_uk-narrow-sky-1','ezslot_20',812,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-narrow-sky-1-0'); If timbers are larger than 10 x 2 inches (or 250mm x 50mm) then the most suitable repair will be to use a Timber-Resin Splice. To replace floor joists, you must first remove the floorboards that cover them. A small room usually costs around $6,000 to $10,000 for a repair. Consult a flooring expert Wall plates can be affected also. The supported ends of joists can become damp because they rest inside or close to the support walls and easily absorb water from damp soil, humid air or water leaks. Before hiring a contractor, it would be best to have multiple opinions and assessments done so you have a bigger span of options to consider. Replacing Rotten Floor Joists Todays Task 47.7K subscribers Subscribe 126K views 2 years ago For Today's Task I am replacing on of the floor joists that has rotted out and it not. If damage is limited to one room or section, your total will likely fall between $2,000 and $10,000. Plumbers and exterminators will have to check your home for any potential pest or termite infestations, mold and mildew damage, or water leaks. Then, pick the deflection limit you want to allow on this floor joist. Instead, add a small amount of prestress by slowly removing it. In addition, traditional plaster or lath ceilings will achieve about 20-minute fire resistance. 4 Pry the floor joist from the subfloor with the back of your hammer. Do I Need a Building Permit to Replace Floor Joists? Repair broken floorboards and screw in any loose floorboards. "Timber batten fixed to existing joist, The joist under this wall was right on the very edge. However, larger rooms can easily run to $20,000. If it is a damp problem, look for (and repair) the source of the damp. 10 Tips to Attract More People! This will create a weak spot. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/3c\/Replace-Floor-Joists-Step-2.jpg\/v4-460px-Replace-Floor-Joists-Step-2.jpg","bigUrl":"\/images\/thumb\/3\/3c\/Replace-Floor-Joists-Step-2.jpg\/aid10976197-v4-728px-Replace-Floor-Joists-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. Enter the on-center joist spacing of the floor joists. All timbers should be treated fully according to the manufacturers instructions. How To Replace Broken Floor Tiles in 9 Simple Steps, 10 Surprising Power Tool Injury Statistics in the UK (Updated in 2023). Update Privacy Preferences 1-2 days. Your joists may have lost structural strength during the initial installation because of incorrect drilling and placement of cables beneath the floor surface. In another area of the house, due to water leakage and woodworms, the floor joists are damaged, and John takes us through the replacement of those floor joists. Replace all joists: Room is approx 3.5 x 3.7m, whole ground floor is approx 3.5 x 7.8m Replace 5 joists: Or is it unlikely that only a few will need to replaced, if one is rotton, will the rest be? Repairing/Replacing our Bouncy, Rotted Floor Lifey Guy 13.1K subscribers Subscribe 37K views 2 years ago MISSOURI I this video I'll show you how I. var cid='3350712846';var pid='ca-pub-4631420095579283';var slotId='div-gpt-ad-diydoctor_org_uk-box-3-0';var ffid=1;var alS=1002%1000;var container=document.getElementById(slotId);container.style.width='100%';var ins=document.createElement('ins');ins.id=slotId+'-asloaded';ins.className='adsbygoogle ezasloaded';ins.dataset.adClient=pid;ins.dataset.adChannel=cid;if(ffid==2){ins.dataset.fullWidthResponsive='true';} House Grail is reader-supported. In this Regency Renovation episode, John shows us the latest progress on the floorboards and floor joists. Remove any leftover fasteners or hardware. Repair replace support damaged floor joists Hi we moved into our detached dorma cottage 3 years ago built around 100years. By signing up you are agreeing to receive emails according to our privacy policy. To make the right choice for your repair you may need some help over and above that offered on this page. As good as modern methods are at repair and prevention of attack from water, moisture and wood boring insects, it is tempting fate to just carry on with the repair until you have adequately diagnosed the cause of the problem. elementor - v3.8.1 - 13-11-2022 */ Timber will start to decay at above 18% moisture content (in average softwood species, like an ordinary Pine), so elimination of dampness is always going to be the primary job. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Fascinated by all sort of tools, Pete loves reading and writing about all the latest gadgets and accessories that hit the market. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/3b\/Replace-Floor-Joists-Step-5.jpg\/v4-460px-Replace-Floor-Joists-Step-5.jpg","bigUrl":"\/images\/thumb\/3\/3b\/Replace-Floor-Joists-Step-5.jpg\/aid10976197-v4-728px-Replace-Floor-Joists-Step-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
\u00a9 2023 wikiHow, Inc. All rights reserved. Make sure to wash the mop after cleaning smaller surfaces to prevent the spreading or smearing of the dirt across the lumber. Find a flooring specialist in your area, and get free, no-commitment estimates for your project. For this reason, we highly recommend calling a structural engineer at the very least to ensure that there isnt an underlying cause behind your floor joists breaking down. The best way to repair the end of a joist is to remove the damp or affected end after the floor or ceiling has been propped up as one would if removing or forming an opening through a load-bearing . Resin is then poured in to the slot to secure the new beam end. Jack slowly, as doing it too fast can make the beam crack. You may need to reach the joists from a crawlspace or basement to examine them without pulling up the floor. Please could someone advise me on the potential cost of replacing joists on the ground floor of a 1900ish solid brick house. Do Power Strips Save Energy? jobs, If there is little or no ventilation in the damp area, the moisture will not have the chance to evaporate and the timber will develop fungus as explained above therefore any repair or treatment must include attention to the Air Bricks or other ventilation (See our project covering air bricks and vents). Again, I used a zigzag pattern to secure it to the new joist, making sure the screws penetrated both the old and new joist pieces. There are a number of ways to repair structural timber. So, before starting with any repairs, make sure to complete all the inspections required to have a healthy new floor system. Let us help you find a tradesman local to you. Update Privacy Preferences The length of the joist plate on the original side of the joist (C) is usually at least twice that of the piece that replaces the damaged section (A).if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'diydoctor_org_uk-leader-2','ezslot_15',810,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-leader-2-0'); As well as a joist plate, the end grain cut (A) and the support area should be thoroughly treated using good quality timber treatment such as this one here and a piece of damp proofing material, such as DPC plastic should then be placed underneath, to prevent damp from finding its way from the wall into your new timber. If you dont have any carpentry experience, call a professional to help you with your project. How Much Do Structural Repairs to Floor Joists Cost? Last Updated: January 19, 2023 In fact, the woodboring weevil will generally be found in timber where fungus has started to take root. Floor joists will have to be replaced only when there is unavoidable damage to some or most of them. How to Position, Fix and Align Joist Plates. How to Replace Floor Joists In 5 Steps 1. You may have to measure your floor joists before replacing them or have professional asses the ideal size your floor joist should be. Most properties will feature air bricks these allow the flow of air either in roof spaces or under suspended floors and prevent the build-up damp and moisture. You can measure it and then make the new joist the exact same size. We highly recommend you check out their website for all your construction material needs!- https://www.mkmbs.co.ukPLEASE NOTE: well endeavour to answer questions and comments as soon as possible depending on work schedules._________________________________For all our socials! Am I on the wrong track? She understands the importance of choosing the right tool for the right job and enjoys informing others on the options currently available on the market. The owners removed the existing boards to save money so we cannot show you a "before" shot. The more extensive the damage to your floor joists, the higher your costs. There are a few different configurations out there, but most floors are 16 inches from center. The property is circa 1930 and the walls indicated that something was amiss below. You can also opt for sistering joistsattaching new joists to the old ones without removing them. Insert a wood-cutting blade into your saw when sawing through wood, and a metal-cutting blade when sawing through nails. Fixing Rotten Floor Joist Under Bathtub Bathtubs are enormously heavy. We work with the industries best to ensure that we recommend only reliable and trustworthy tradesmen. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Find a flooring specialist in your area, and get free, no-commitment estimates for your project. 86% positive wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. As a small thank you, wed like to offer you a $30 gift card (valid at GoNift.com). You must correctly install the joists and space them close together to prevent any bending and damaging of the floor and carry all of the load efficiently. Replacing the floor joists and boards is the easiest, quickest and cheapest method. We love feedback on our DIY tutorials it helps us to make them the best they possibly can be so if you have any comments you would like to share with us, click the button below and let us know. Let us help you find a tradesman local to you. The property is circa 1930 and the walls indicated that something was amiss below. Now you can place your timber splice up to the existing timber with the high tensile bars resting in the slot that you have just cut.Slot cut in existing timber to take steel rods in timber splice, Slot cut in existing timber to take steel rods in timber splice. Therefore, it is vital to fix the underlying problem and not just cover it up with a sister joist. This has to be done by a professional and can cost around $100 to $300 per joist. Usually, trees that grow slower will have a thick trunk and the lumber will be much stronger. feedback, Beckenham Member since 14 Apr 2017 You can usually tell that the joists need to be replaced when they crack or sag. These come as a pair of L shaped, metal plates complete with screws and instructions. Step 4: Laying the Bottom Stud. This is a regular 2x4, measured and cut to replace the part I cut out. Youll likely need to shut off the electricity to that area while performing this repair as well. However, in some cases, youll need to make a T-jack to hold up a bit more weight. Use the back end of a hammer or crowbar to help open the gap between the floor joist and subfloor. A vertical slot is machined in the joist. Often, a sagging or broken joist can just be a symptom of a bigger problem. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'diydoctor_org_uk-medrectangle-4','ezslot_4',691,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-medrectangle-4-0');We look closely at wet rot and its causes and effects, the lasting damage of dry rot and how insect attack from woodworm and other wood boring beetles can severely compromise the structural (and other) timbers in the home. Featured Image Credit: AL Robinson, Shutterstock, In this day and age, the vast majority of windows have screens of some sort. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Even if your joists seem healthy from the surface level, inspect them carefully as any impairments may cause deformities in your entire floor system. After the cracked joist is lifted, you can carefully move the new one into place with a hammer if the joist is catching. Copyright 2023 House Grail. Wood Flooring Installation If you wish to cover a 20 square metre room with oak solid wood flooring, you can expect to pay a total of 1000 to 1400. However, in other areas, it counts as structural work and therefore needs a license. If you dont have any carpentry experience, you may want to call a professional carpenter to handle the project. 300-400. Therefore, it is often best to call in a professional, even if you can do it yourself. Separating the Floor Joist from the Subfloor, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/af\/Replace-Floor-Joists-Step-1.jpg\/v4-460px-Replace-Floor-Joists-Step-1.jpg","bigUrl":"\/images\/thumb\/a\/af\/Replace-Floor-Joists-Step-1.jpg\/aid10976197-v4-728px-Replace-Floor-Joists-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":" \u00a9 2023 wikiHow, Inc. All rights reserved. When you buy via links on our site, we may earn an affiliate commission at no cost to you. These high tensile bars will be pre-bonded into one end of the timber beam, ready for you to fit using the resins provided in the kit. var cid='3350712846';var pid='ca-pub-4631420095579283';var slotId='div-gpt-ad-diydoctor_org_uk-box-3-0';var ffid=1;var alS=1002%1000;var container=document.getElementById(slotId);container.style.width='100%';var ins=document.createElement('ins');ins.id=slotId+'-asloaded';ins.className='adsbygoogle ezasloaded';ins.dataset.adClient=pid;ins.dataset.adChannel=cid;if(ffid==2){ins.dataset.fullWidthResponsive='true';} Featured Image Credit: ungvar, Shutterstock, Bonsai trees are wonderful plants that are a wonderful addition to any garden or home. We work with the industries best to ensure that we recommend only reliable and trustworthy tradesmen. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. For more information on identification of wet rot, how it is caused and the remedies for it, go to our project page. This can include water traveling over the top of the brickwork through loose or broken tiles and blocked gutters. Many factors can cause damage to the floor system, including rot, water, fire, termite infestations, and even splintering. An I-joist consists of 3 parts: a horizontal piece of lumber on the top, an identical piece of lumber on bottom, and a central web in between, which is usually made from plywood. This work isnt cheap, as it is structural. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'diydoctor_org_uk-medrectangle-4','ezslot_4',691,'0','0'])};__ez_fad_position('div-gpt-ad-diydoctor_org_uk-medrectangle-4-0');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. /*! This article was co-authored by Mitchell Newman. Once the joist is completely detached from the subfloor, put it away somewhere where it wont be underfoot. You also dont need that many tools, so you likely wont need to purchase anything special just for this job. After reading this article carefully, we hope that you have a better view of how much it will cost to replace your floor joists. 1-2 days. These posts are better at handling any bending force that occurs. If you're dealing with cracked floorboards, these can be replaced for a small fee of around 200. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. The further apart the joists get, the bouncier the floor will be. ins.style.display='block';ins.style.minWidth=container.attributes.ezaw.value+'px';ins.style.width='100%';ins.style.height=container.attributes.ezah.value+'px';container.appendChild(ins);(adsbygoogle=window.adsbygoogle||[]).push({});window.ezoSTPixelAdd(slotId,'stat_source_id',44);window.ezoSTPixelAdd(slotId,'adsensetype',1);var lo=new MutationObserver(window.ezaslEvent);lo.observe(document.getElementById(slotId+'-asloaded'),{attributes:true});Damp and timber joists do not mix well. Don't fancy doing this project yourself? This floor was done in softwood. Replace or repair floor joists and replace split floorboards. Set a hydraulic jack and post under the beam, and jack up the joists about 1/8 in. go to our information on dry rot identification, causes and remedies. To resolve this, in the length of timber that is left you will now need to cut a slot in the top of it that is slightly longer than the protruding high tensile bars in the replacement timber splice you have. Nailing two 2x4s together will work to span about three joists, unless the sag is under a weight-bearing wall. Make sure you also buy the same type of joist. Youll also need to lift the existing joist if it is sagging at all and you want the new beam to be right up against the old one. The material costs of solid wood flooring, in general, tend to land anywhere from 20 to 100 per m2. UK law requires homeowners to install 100mm wool insulation between joists for sound insulation. Choose the wood species and its lumber grade. Over the years, he has developed a keen interest in a wide variety of DIY projects around the home. General Building, Self Build and Renovation, Planning Regs, Project Management and Safety, Let us help you find a tradesman local to you, How To Install Engineered Hardwood Flooring. You may not be able to screw everywhere since the old joist may be cracked or broken. Some of the most popular lumber choices include: While this step seems relatively simple to do, there are a few logistics you will have to consider. It could be that condensation is the cause and has built up because of lack of ventilations. If youve found out you need to replace your floor joists and are wondering about the general costs, this article has all the information you need. You will have to consider the room for which you will install the joists. Floor joists are timber floor support that spread across an open area of usually basements, crawl spaces, or bottom floor levels. visit the PCA (Property Care Association) website here, to re-roof or take a look at how your roof tiles are fixed to your roof, chimney or other flashings are not fitted correctly, our pages dealing with the effects of condensation, the damp problem has arisen because of a faulty damp proof course, See our project covering air bricks and vents, if removing or forming an opening through a load-bearing wall, with Acrow Props, good quality timber treatment such as this one here, Repairing a Flat Roof with Fibre Glass Sheeting, Roof Trusses: Different Types and How to Repair Them, Repairing Structural Timbers in Situ Using a Splice Kit, Structural Aspects In Relation To Construction Of Buildings, How To Repair Structural Timber In The Home, How Roof Trusses Affect The Structure Of A Building, Unpainted and untreated timber exposed to water from roof, Condensation water arising from lack of ventilation to roof or floor timbers especially with hollow floors. Plumbers and exterminators will have to check your home for any potential pest or termite infestations, mold and mildew damage, or water leaks. 400-500. Be sure to insert a wood-cutting blade into your reciprocating saw before cutting wood. This image may not be used by other entities without the express written consent of wikiHow, Inc. \u00a9 2023 wikiHow, Inc. All rights reserved. Therefore, there is a lot that goes into repairing a joist. If youre not sure what type of joist you have, take pictures of one from several angles and show your photos to an employee at your local home improvement store. All rights reserved. If you do decide to replace a floor joist by yourself, be sure to take all proper safety precautions. Replacing subflooring is usually a much faster process than replacing joists. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. No, you want the joists closer to one another if you're doing this from scratch (16 inches from center is the standard). https://www.familyhandyman.com/decks/building-a-deck/how-to-install-joist-hangers/. As the founder of House Grail, Pete's primary goal is to help consumers make educated decisions about DIY projects at home, in the garage, and in the garden. If you hire a professional to repair a floor joist, youll likely need to pay thousands of dollars in repairs. Finally, the resin supplied with the kit is poured into the slot, bonding the high tensile bars into the existing timber.
\n<\/p>
\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5f\/Replace-Floor-Joists-Step-6.jpg\/v4-460px-Replace-Floor-Joists-Step-6.jpg","bigUrl":"\/images\/thumb\/5\/5f\/Replace-Floor-Joists-Step-6.jpg\/aid10976197-v4-728px-Replace-Floor-Joists-Step-6.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"