# Swine Barn Flooring Options and Slat Design ## Key Takeaways - **Concrete slats** are the most durable and cost-effective long-term flooring for grow-finish and sow barns, but require precise curing and edge finishing (e.g., beveled or rounded edges) to mitigate hoof abrasions and lameness. - **Plastic slats** are optimal for nursery barns and young pigs (<50 lbs) due to their low thermal conductivity (warmer surface), non-abrasive nature, and ease of cleaning, though they are more expensive and have a shorter lifespan than concrete. - **Slat width and gap spacing** are critical for manure passage and preventing injuries; gaps should be sized to the pig's hoof width (e.g., 3/8 to 1/2 inch for nursery pigs, 3/4 to 1 inch for grow-finish pigs) to avoid foot entrapment and lameness. - **Fully slatted floors** are standard in modern confinement barns, eliminating daily manure scraping and simplifying pit management, but necessitate careful ventilation to control gas buildup (e.g., ammonia, hydrogen sulfide) from deep pits. - **Partially slatted floors** offer reduced initial costs and improved comfort in colder climates by providing a solid sleeping area, but require increased labor for manure removal from the solid sections. - **Hoof problems and lameness** are the primary flooring-related health issues, often stemming from rough concrete edges, excessively wide gaps, or slippery surfaces, necessitating regular inspection and maintenance of slat integrity and surface finish. --- Choosing the right flooring system is one of the most consequential decisions you will make for a swine operation. Flooring affects animal comfort, hoof health, manure management, air quality, cleaning efficiency, and the physical safety of both pigs and workers. This guide compares the main swine barn flooring options, with a focus on slat design and material choices. It is written for hog producers, farm managers, and builders who need practical guidance on selecting, installing, and maintaining flooring systems for nursery, grow-finish, and gestating sow barns. ## At a Glance - **Concrete slats** are the most durable and cost-effective long-term option for most grow-finish and sow barns, but they require proper curing and edge finishing to prevent hoof damage. - **Plastic slats** are the best choice for nursery barns and for pigs under 50 pounds, because they are warm, non-abrasive, and easy to clean. - **Fully slatted floors** are the most common system in modern confinement barns because they eliminate the need for daily manure scraping and make pit management straightforward. - **Partially slatted floors** reduce initial cost and pig comfort issues in colder climates, but they require more labor for manure removal. - **Slat width and gap spacing** must match the pig size class. Gaps that are too wide cause foot injuries and trapped legs. Gaps too narrow reduce manure passage and increase cleaning time. - **Hoof problems and lameness** are the most common flooring-related health issues in swine. Rough concrete edges, wide gaps, and slippery surfaces are the usual culprits. - **Manure pit design and flooring choice are linked**. Deep pits, pull-plug systems, and flush systems each place different demands on the floor above them. ## Understanding How Flooring Affects Pig Health and Behavior Flooring is not just a structural surface. It is the interface between the pig and its environment. Pigs spend nearly all their time standing, lying, walking, and rooting on the floor. The physical properties of that surface influence everything from body temperature regulation to foot health. ### Hoof Anatomy and Floor Interaction A pig's hoof has two main digits plus two dewclaws. The hoof wall bears most of the weight, with the sole and heel providing additional support. When a pig stands on a hard, abrasive surface, the hoof wall wears down. When the surface is too soft or wet, the hoof overgrows and becomes prone to cracking. Flooring that is too rough abrades the hoof wall and sole, leading to sole ulcers and white line disease. Flooring that is too smooth causes slipping, which strains the legs and can lead to splay leg in piglets and joint injuries in heavier pigs. The ideal floor provides enough traction to allow confident movement without wearing the hoof excessively. ### Heat Transfer and Lying Behavior Pigs have a limited ability to sweat. They rely on conductive heat loss through the floor to regulate body temperature. Concrete has high thermal conductivity, meaning it draws heat away from a lying pig quickly. This is an advantage in hot weather but a serious disadvantage in cold weather, especially for young pigs. Plastic and rubber flooring have lower thermal conductivity. They feel warmer to a lying pig. This is why nursery barns commonly use plastic slats or rubber-coated expanded metal. In grow-finish barns, pigs over 150 pounds generate enough body heat that concrete flooring is usually acceptable, even in cooler climates. Observe where pigs choose to lie. If pigs huddle tightly in groups, the floor is likely too cold. If they spread out and avoid the floor entirely, it may be too hot or uncomfortable. If they consistently lie in the manure alley rather than on the sleeping platform, the sleeping surface is not comfortable enough. ### The Link Between Flooring and Manure Management The flooring system determines how manure is collected, stored, and removed. Fully slatted floors allow manure to fall directly into a pit below. Partially slatted floors require either a scraper system or manual cleaning of the solid area. Bedded systems, such as hoop barns or deep-litter systems, manage manure as a solid within the bedding material. Your choice of flooring must account for your manure storage capacity, your local regulations on manure application, and your labor availability. A fully slatted floor with a deep pit gives you the most flexibility in timing manure application. A flush system requires a slatted floor with a smooth surface so solids move easily toward the drain. ## Concrete Slats for Pigs Concrete is the [dominant](/blog/careers/dominant-definition-biology) flooring material in commercial swine production. It is strong, durable, relatively inexpensive, and widely available from local precast manufacturers. Concrete slats are the standard choice for grow-finish barns, sow gestation barns, and farrowing rooms. ### Advantages of Concrete Slats Concrete slats last 20 to 30 years or more when properly made and maintained. They can support the weight of heavy finishing hogs and mature sows without flexing or cracking. Concrete is also easy to clean with high-pressure washers and is compatible with all manure handling systems. Concrete provides good traction when the surface is properly finished. A light broom finish or a textured surface gives pigs secure footing without being abrasive. Concrete also has the advantage of being a known quantity. Most barn builders and manure equipment suppliers have decades of experience working with concrete slats. ### Disadvantages of Concrete Slats The main drawbacks of concrete are its hardness, its thermal conductivity, and its weight. Concrete is unforgiving on pig feet. Any roughness, sharp edges, or exposed aggregate will cause hoof abrasions and lameness. Concrete also draws heat away from young pigs, which is why it is rarely used alone in nursery barns. Concrete slats are heavy and require a crane or forklift to install. They also require a strong support structure, typically concrete or steel beams, to span the manure pit. The manufacturing quality of precast slats can vary significantly between suppliers, so you must inspect the product before purchase. ### Concrete Slat Manufacturing and Quality Control Precast concrete slats are made in forms that shape the slat and create the tapered gaps between slats. The quality of the final product depends on the concrete mix, the curing process, and the finishing of the edges. A good concrete slat uses a mix with a compressive strength of at least 4,000 psi. The surface should be dense and smooth, without honeycombing or exposed aggregate. The edges of the slat should be slightly beveled or rounded to reduce the risk of hoof injury. Some manufacturers add a hardener or sealer to the surface to reduce wear and dust. When you receive a shipment of slats, inspect them for the following defects: - Chipped or broken edges - Large cracks that extend through the slat - Exposed aggregate on the walking surface - Irregular gaps between slats - Warped or bowed slats that will not sit level Reject any slats with these defects. A single bad slat can cause lameness problems across an entire pen. It is much easier to reject a slat at delivery than to replace it after the barn is stocked. ### On-Site Poured Concrete Floors Some producers choose to pour concrete floors on site rather than use precast slats. This approach is common for partially slatted floors, where the solid area is a continuous concrete slab. The slatted portion can be formed with removable inserts or built using precast slats placed over a formed pit. On-site pouring gives you flexibility in floor design and eliminates the need to transport and lift heavy precast units. However, it requires skilled labor and careful attention to curing. Concrete that dries too quickly will crack and dust. Concrete that stays wet too long will have a soft surface that wears quickly. For on-site pours, use a concrete mix designed for agricultural use. Add air entrainment to improve freeze-thaw resistance in colder climates. Use a power trowel to create a smooth but not polished surface. A medium broom finish provides good traction without being abrasive. ### Concrete Slat Dimensions and Spacing The dimensions of concrete slats vary by manufacturer and by the weight class of pigs that will use them. Common slat widths are 4, 5, and 6 inches. The gap between slats ranges from 3/8 inch for nursery pigs to 1 inch for grow-finish pigs. The table below shows typical slat and gap dimensions by pig size class. | Pig Size Class | Slat Width | Gap Width | Notes | |---|---|---|---| | Nursery (10 to 50 lb) | 4 to 5 inches | 3/8 to 1/2 inch | Plastic slats preferred | | Grow-finish (50 to 280 lb) | 5 to 6 inches | 3/4 to 1 inch | Concrete slats standard | | Gestating sows | 6 inches | 3/4 to 1 inch | Wider slats for hoof support | | Farrowing crates | 5 inches | 3/8 to 1/2 inch | Narrow gaps protect piglets | The gap width is the most critical dimension. A gap that is too narrow will not allow manure to pass through, causing the floor to become slick and dirty. A gap that is too wide will trap pig feet and can lead to serious leg injuries. A simple test for gap width is to measure the width of a pig's hoof at the dewclaw. The gap should be no wider than the narrowest part of the hoof below the dewclaw. For nursery pigs, this means gaps under 1/2 inch. For grow-finish pigs, gaps up to 1 inch are acceptable. ## Plastic Slats for Swine Plastic slats have become the standard flooring for nursery barns and are increasingly used in farrowing rooms. They are made from molded high-density polyethylene or polypropylene. Plastic slats are lighter than concrete, warmer to the touch, and easier to clean. ### Advantages of Plastic Slats Plastic slats are the best choice for young pigs. They have low thermal conductivity, which keeps the floor surface warmer than concrete. This reduces the energy needed for supplemental heating in the nursery and helps prevent chilling in piglets. Plastic is also non-abrasive. The smooth surface does not wear down pig hooves, which is important for young pigs whose hooves are still developing. Plastic slats are easy to clean with high-pressure washers and do not absorb moisture or odors. The lightweight nature of plastic slats makes them easy to install and replace. A single person can lift and position a plastic slat panel, whereas concrete slats require heavy equipment. Plastic slats also come in a variety of colors, which some producers use to mark different pen areas or to create visual contrast for the pigs. ### Disadvantages of Plastic Slats The main disadvantage of plastic slats is their cost. Plastic slats cost two to three times more than concrete slats per square foot. They also have a shorter lifespan, typically 10 to 15 years, depending on the quality of the plastic and the intensity of use. Plastic slats can become slippery when wet, especially if they are not manufactured with a textured surface. Some producers apply a non-slip coating or choose a plastic slat with a raised diamond pattern to improve traction. Plastic slats are also more susceptible to damage from sharp objects and from heavy pigs. A 280-pound finishing hog can crack or break a plastic slat that is not reinforced. For this reason, plastic slats are rarely used in grow-finish barns except in special circumstances, such as a hospital pen or a sorting area. ### Plastic Slat Design and Installation Plastic slat panels are typically 12 to 24 inches wide and come in lengths of 4 to 8 feet. They are supported by a concrete or steel frame, with the plastic slats resting on the frame members. The panels are held in place with clips or screws, which makes them easy to remove for cleaning or replacement. The gaps between plastic slats are molded into the panel. Common gap widths are 3/8 inch for nursery pigs and 1/2 inch for farrowing rooms. The slat surface should have a raised texture or a series of small ridges to provide traction. When installing plastic slats, make sure the support frame is level and free of sharp edges. The plastic slats should sit flush with each other, with no raised edges that could trip pigs or trap feet. Use the manufacturer's recommended fasteners and follow the installation instructions precisely. ### Hybrid Systems: Plastic over Concrete Some barns use a hybrid system where plastic slats are placed over a concrete floor or over concrete slats. This approach is common in farrowing rooms, where the concrete base provides structural support and the plastic surface provides comfort for the sow and safety for the piglets. A hybrid system can also be used to retrofit an existing concrete slatted barn. If the concrete slats are still structurally sound but have rough surfaces or wide gaps, plastic slat covers can be installed over them. This is a cost-effective way to improve pig comfort without replacing the entire floor. The main drawback of hybrid systems is that the plastic covers can shift or become dislodged over time. They also raise the floor level slightly, which can affect the fit of gates and partitions. Check with the manufacturer to ensure the plastic covers are designed for your specific concrete slat dimensions. ## Fully Slatted Floors A fully slatted floor is one where the entire pen floor consists of slats, with no solid area. Manure falls through the gaps into a pit below. Fully slatted floors are the standard in modern commercial swine barns, particularly for grow-finish and gestation operations. ### How Fully Slatted Floors Work In a fully slatted system, the entire pen area is covered with slats. The space between slats allows manure and urine to drop into a collection pit or gutter below. The pit may be a deep pit that stores manure for several months, or it may be a shallow gutter that is flushed or scraped on a regular schedule. The slats themselves are supported by a concrete or steel structure that spans the pit. The support structure must be designed to handle the weight of the slats, the pigs, and any equipment that will be used in the barn. ### Advantages of Fully Slatted Floors Fully slatted floors eliminate the need for daily manure removal from the pen. This saves labor and reduces the amount of time workers spend in the pens. It also keeps the pig living area cleaner, which reduces the risk of disease and improves air quality. Fully slatted floors also give pigs a more uniform environment. There is no wet or dirty solid area where pigs might choose to lie. This can reduce the incidence of skin lesions and other health problems associated with lying in manure. ### Disadvantages of Fully Slatted Floors The main disadvantage of fully slatted floors is the initial cost. The slats themselves are more expensive than a solid concrete floor, and the pit below adds significant construction cost. Fully slatted floors also require careful management of the pit to prevent gas buildup and to ensure proper manure removal. Fully slatted floors can also be less comfortable for pigs than partially slatted or bedded systems. The open gaps allow cold air to rise from the pit, which can chill pigs in cold weather. In hot weather, the pit can release ammonia and other gases that irritate pig respiratory systems. ### Deep Pit vs. Pull-Plug vs. Flush Systems The type of manure management system below the slats affects how the floor performs. **Deep pit systems** store manure for 6 to 12 months. The pit is typically 8 to 10 feet deep and is emptied once or twice a year. Deep pits work well with fully slatted floors because the manure falls directly into storage. However, deep pits require careful ventilation management to control gas levels, and they can be dangerous to enter for cleaning or maintenance. **Pull-plug systems** use a shallow pit or gutter with a plug at one end. The plug is pulled on a regular schedule, usually weekly, allowing the manure to flow into a larger storage structure. Pull-plug systems require a floor with a slight slope toward the plug end to ensure complete drainage. **Flush systems** use a large volume of water to push manure from a shallow gutter into a lagoon or storage tank. The gutter under the slats is typically 12 to 18 inches deep. Flush systems require a smooth floor surface and a reliable water supply. They also produce a large volume of liquid manure that must be stored and applied. ## Partially Slatted Floors A partially slatted floor has a solid area where pigs can lie and sleep, plus a slatted area where manure is deposited. The typical design has a solid sleeping platform at one end of the pen and a slatted alley at the other end, near the feeders and drinkers. ### Design Considerations for Partially Slatted Floors The key design decision for a partially slatted floor is the proportion of solid to slatted area. Common ratios are 50/50, 60/40, and 70/30, with the larger number representing the solid area. The ratio you choose depends on the climate, the pig size, and the manure management system. In cold climates, a larger solid area gives pigs a warmer place to lie. In hot climates, a larger slatted area helps keep the pen cooler and cleaner. The solid area should be located away from the feeders and drinkers, because pigs tend to eliminate near those areas. The solid area should have a slight slope, typically 1 to 2 percent, toward the slatted area. This allows urine and water to drain away from the sleeping area. The solid area should also be finished with a broom texture to provide traction. ### Advantages of Partially Slatted Floors Partially slatted floors cost less than fully slatted floors because they use fewer slats and require a smaller pit. They also provide pigs with a more comfortable sleeping area, which can improve growth rates and feed efficiency in cold climates. Partially slatted floors also give pigs a choice of environments. Pigs can lie on the solid area when they want to be warm and dry, or they can move to the slatted area when they want to cool off. This behavioral choice can improve pig welfare and reduce stress. ### Disadvantages of Partially Slatted Floors The main disadvantage of partially slatted floors is the labor required to keep the solid area clean. Manure that is deposited on the solid area must be scraped or washed into the slatted area on a regular basis. In a large barn, this can add significant labor costs. Partially slatted floors also require more careful pen design. The feeder and drinker placement must encourage pigs to use the slatted area for elimination. If pigs choose to lie on the solid area and eliminate on the slatted area, the system works well. If they reverse the pattern, the solid area becomes dirty and the slats stay clean, which defeats the purpose. ## Rubber Flooring and Mats Rubber flooring is a newer option that is gaining popularity in swine barns, particularly for sow gestation stalls and farrowing crates. Rubber mats and rubber-coated surfaces provide excellent traction and comfort, but they require careful management to prevent manure buildup. ### Types of Rubber Flooring Rubber flooring comes in several forms: - **Rubber mats** are individual mats that can be placed on top of concrete or slats. They are commonly used in farrowing crates and in hospital pens. - **Rubber-coated slats** are concrete or plastic slats with a rubber surface applied during manufacturing. The rubber is bonded to the slat and provides a durable, non-slip surface. - **Rubber rolls** are continuous sheets of rubber that can be cut to size and installed over a solid concrete floor. ### Benefits of Rubber Flooring Rubber flooring provides the best traction of any flooring material. This is especially important for sows, which are prone to slipping and falling on wet concrete. Rubber also provides cushioning, which reduces joint stress and can improve sow longevity. Rubber has lower thermal conductivity than concrete, making it more comfortable for pigs in cold weather. Rubber is also non-abrasive, which reduces hoof wear and the incidence of sole ulcers. ### Drawbacks of Rubber Flooring Rubber flooring is expensive. The initial cost is higher than concrete or plastic, and the rubber may need to be replaced every 5 to 10 years. Rubber also requires careful cleaning to prevent manure from accumulating in the surface texture. Rubber can become slippery when covered with a layer of manure or feed. Regular cleaning is essential to maintain traction. Some producers find that rubber flooring in farrowing crates makes the crate more difficult to keep clean, because manure tends to stick to the rubber surface. ## Choosing the Right Flooring for Each Barn Area Different areas of a swine operation have different flooring needs. The best flooring for a nursery barn is not the best for a grow-finish barn, and the best flooring for a farrowing crate is not the best for a gestation stall. ### Nursery Barn Flooring Nursery barns house pigs from weaning at about 3 weeks of age until they reach 50 to 60 pounds. These pigs are young, sensitive to cold, and have developing hooves. Plastic slats are the best choice for nursery barns. They are warm, non-abrasive, and easy to clean. The gap width should be 3/8 inch for the youngest pigs, increasing to 1/2 inch as the pigs grow. If you use concrete slats in the nursery, choose slats with a smooth surface and beveled edges. Provide supplemental heat in the form of heat lamps, heat mats, or a heated sleeping area to compensate for the cold concrete surface. ### Grow-Finish Barn Flooring Grow-finish barns house pigs from 50 pounds to market weight at 270 to 300 pounds. These pigs generate significant body heat and have stronger hooves than nursery pigs. Concrete slats are the standard choice for grow-finish barns. They are durable, cost-effective, and easy to clean. The gap width should be 3/4 to 1 inch, depending on the manufacturer's recommendations. Fully slatted floors are the most common system in grow-finish barns, but partially slatted floors are a good option in colder climates. If you choose partially slatted floors, provide a solid sleeping area with a broom finish and a slope toward the slatted area. ### Gestation Barn Flooring Gestation barns house sows from weaning until they enter the farrowing room, a period of about 16 weeks. Sows are heavy animals that spend most of their time lying down. Concrete slats are the standard choice for gestation barns. The slats should be at least 6 inches wide to provide adequate support for the sow's hooves. The gap width should be 3/4 to 1 inch. Some producers use rubber mats in gestation stalls to improve sow comfort. Rubber mats are particularly beneficial for older sows or sows with a history of lameness. The mats must be cleaned regularly to prevent manure buildup. ### Farrowing Room Flooring Farrowing rooms house sows and their litters from birth until weaning. The flooring must be safe for the sow, which can weigh 400 to 600 pounds, and for piglets, which weigh only 3 to 5 pounds at birth. The most common farrowing room flooring is a fully slatted floor with plastic slats in the piglet area and concrete or plastic slats in the sow area. The gap width should be 3/8 to 1/2 inch to prevent piglet feet from getting trapped. Some producers use a combination of solid flooring in the piglet creep area and slatted flooring in the sow area. The creep area should have a rubber mat or a heat pad to provide a warm, comfortable sleeping area for the piglets. ## Step-by-Step Guide to Installing Concrete Slats If you are installing concrete slats in a new barn or replacing old slats in an existing barn, follow these steps to ensure a successful installation. ### Step 1: Measure and Plan Measure the dimensions of the pit and the pen area. Calculate the number of slats you need, accounting for the slat width and the gap between slats. Order slats from a reputable manufacturer and inspect them on delivery. ### Step 2: Prepare the Support Structure The support structure must be level and capable of bearing the weight of the slats and the pigs. Concrete beams or steel I-beams are common support structures. Check the spacing between supports to ensure it matches the slat length. ### Step 3: Set the Slats Use a crane or forklift to position the slats on the support structure. Start at one end of the pit and work across. Place each slat carefully, ensuring it sits flush against the adjacent slat with the correct gap. ### Step 4: Check the Gaps After all slats are set, check the gaps between slats with a gap gauge or a tape measure. The gap should be uniform across the entire floor. Adjust any slats that are out of alignment. ### Step 5: Secure the Slats Some slat systems use clips or brackets to secure the slats to the support structure. Install these according to the manufacturer's instructions. If the slats are not secured, they can shift when pigs walk across them. ### Step 6: Cure the Floor If you poured a solid concrete area, allow the concrete to cure for at least 7 days before allowing pigs onto the floor. Keep the concrete moist during the curing period to prevent cracking. ## Common Flooring Mistakes and How to Avoid Them Many flooring problems in swine barns are the result of avoidable mistakes. Here are the most common issues and how to prevent them. ### Using Gaps That Are Too Wide Wide gaps cause foot injuries, trapped legs, and lameness. The gap should be no wider than the narrowest part of the pig's hoof below the dewclaw. When in doubt, choose a narrower gap. ### Using Slats That Are Too Narrow Narrow slats do not provide enough support for the pig's hoof. This causes the hoof to sink into the gap, leading to injury. Use slats that are at least as wide as the pig's hoof. ### Ignoring Slat Edge Quality Sharp or rough edges on concrete slats cause hoof abrasions and sole ulcers. Inspect slats on delivery and reject any with damaged edges. Beveled edges are preferred. ### Poor Concrete Curing Concrete that cures too quickly or too slowly will have a weak, dusty surface. Follow the manufacturer's recommendations for curing time and keep the concrete moist during the curing period. ### Not Accounting for Floor Slope Floors must have a slight slope toward the drainage point to prevent water and urine from pooling. A slope of 1 to 2 percent is usually sufficient. ### Forgetting About the Pit The floor and the pit are a single system. If you install a new floor over an old pit, check that the pit is structurally sound and that the manure removal system is compatible with the new floor. ## Monitoring Flooring Performance Regular monitoring of the flooring system can help you identify problems before they become serious. Here are the key things to check. ### Daily Checks - Look for pigs that are limping or reluctant to stand - Check for pigs that are lying in the manure area rather than the sleeping area - Look for manure buildup on the solid area of partially slatted floors - Check that waterers and feeders are not leaking onto the floor ### Weekly Checks - Inspect the floor surface for cracks, chips, or exposed aggregate - Check the gaps between slats for debris that could trap pig feet - Measure the depth of manure in the pit if you have a deep pit system - Check the ventilation system to ensure it is removing moisture and gas from the pit ### Monthly Checks - Clean the floor thoroughly and inspect the surface for wear - Check the support structure for signs of corrosion or damage - Test the manure removal system to ensure it is working properly - Review pig performance data for signs of flooring-related problems ### Recordkeeping Keep a log of flooring inspections and any repairs you make. Record the date, the location, the problem, and the action taken. This log will help you identify patterns and plan for future maintenance. Track the following metrics to monitor flooring performance: - Lameness incidence by pen and by barn - Hoof lesion scores from slaughter checks - Mortality and culling rates related to lameness - Feed efficiency and average daily gain by pen - Cleaning time per pen ## When to Call a Veterinarian or Extension Agent Flooring problems often show up as health problems in the pigs. If you see any of the following signs, consult your veterinarian or your local extension agent. ### Signs of Flooring-Related Health Problems - Sudden increase in lameness or reluctance to stand - Hoof lesions, sole ulcers, or white line disease - Swollen joints or heat in the legs - Pigs that are unable to rise or walk - Skin lesions on the knees, hocks, or shoulders - Increased incidence of tail biting or other behavioral problems A veterinarian can help you determine whether the problem is caused by the flooring, by a disease, or by a combination of factors. They can also recommend treatment for affected pigs and help you develop a plan to prevent future problems. An extension agent can help you evaluate your flooring system and recommend improvements. They can also connect you with local resources, such as precast concrete suppliers and flooring installation contractors. ### When Flooring Repairs Are Urgent Some flooring problems require immediate action. If you find any of the following, remove pigs from the affected area and make repairs before restocking: - A broken slat that could trap a pig's leg - A large crack that could cause a hoof injury - A missing or dislodged slat that leaves a hole in the floor - A section of floor that is sagging or unstable ## Frequently Asked Questions **What is the best flooring for nursery pigs?** Plastic slats are the best choice for nursery pigs. They are warm, non-abrasive, and easy to clean. The gap width should be 3/8 to 1/2 inch. If you use concrete slats, choose a smooth surface with beveled edges and provide supplemental heat. **How wide should the gaps be between concrete slats for grow-finish pigs?** The gap should be 3/4 to 1 inch for grow-finish pigs weighing 50 to 280 pounds. The gap should be no wider than the narrowest part of the pig's hoof below the dewclaw. A gap that is too wide can trap feet and cause serious injury. **Can I replace concrete slats with plastic slats in an existing barn?** Yes, you can replace concrete slats with plastic slats if the support structure is in good condition. Plastic slats are lighter than concrete and can be installed over the existing support structure. This is a good option if the concrete slats are worn or have rough surfaces. **How long do concrete slats last?** Concrete slats can last 20 to 30 years or more when properly made and maintained. The lifespan depends on the quality of the concrete, the curing process, and the intensity of use. Regular inspection and repair can extend the life of the floor. **Are fully slatted floors better than partially slatted floors?** Fully slatted floors save labor and keep the pen cleaner, but they cost more and can be colder for pigs. Partially slatted floors cost less and give pigs a warmer sleeping area, but they require more labor to keep clean. The best choice depends on your climate, your labor situation, and your budget. **How do I prevent pigs from slipping on slatted floors?** Slipping is usually caused by a smooth floor surface or by manure buildup. Choose slats with a textured surface and clean the floor regularly. If you use plastic slats, select a model with a raised pattern for traction. **What is the best flooring for sows in gestation stalls?** Concrete slats are the standard choice for gestation stalls. Use slats that are at least 6 inches wide with a gap of 3/4 to 1 inch. Rubber mats can be added for extra comfort, especially for older sows. **How much does it cost to install a slatted floor in a swine barn?** The cost varies widely depending on the material, the size of the barn, and the local labor market. Concrete slats are the least expensive option, while plastic and rubber flooring cost more. Get quotes from multiple suppliers and contractors before making a decision. ## Related Farming Guides This section will be populated with links to related farming guides on swine housing, manure management, pig health, and barn ventilation. Check back for updated content. ## Related Clinical & Scientific Guides * [Pig Enrichment Programs and Behavior Monitoring](/knowledge/animal-farming/swine/pig-enrichment-programs-and-behavior-monitoring) * [Swine Handling Facility Design for Safe Pig Movement](/knowledge/animal-farming/swine/swine-handling-facility-design-safe-pig-movement) * [Swine Feeding Management for Grow-Finish Pigs](/knowledge/animal-farming/swine/swine-feeding-management-for-grow-finish-pigs) ## References - National Pork Board: https://www.pork.org/ - USDA APHIS Swine Health: https://www.aphis.usda.gov/livestock-poultry-disease/swine - FAO Pig Production: https://www.fao.org/pig-production-and-products/en/ - FAO Animal Production and Health: https://www.fao.org/animal-production/en/ - WOAH (World Organisation for Animal Health): https://www.woah.org/en/home/ > This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.