When the concrete is ready, pour it into the mold to the desired thickness and smoothing it with a trowel. Remove the cutout sides using the same technique. Concrete Countertop Thicknesses. Prepare the installation by running a thick bead of silicone caulk around the upper edge of the cabinet. Super-plasticizer additive provides a flowable mix at low water/cement ratio. Work in long strokes from one edge to the other. For larger countertops, however, where weight can be a problem in terms of both handling and installation, contractors can use glass-fiber-reinforced concrete, lightweight cores, or special reinforcement methods to keep the weight down. Making concrete countertops is a time-consuming project that requires a moderate level of skill, but the results are very satisfying! Don't miss your favorite shows in real time online. Carefully drill two 2-inch screws equal distance apart, halfway into each of the melamine sides. Concrete can be cast into any shape and pigmented, stained, or textured with all kinds of shades and finishes; you can even embed tiles, stones, etc. If you’re working inside, open doors and windows for better ventilation. An 80-pound bag of Quikrete’s Countertop Mix will yield approximately 0.6 cubic feet of concrete. These are both thick enough to remain stable without as much support from the foundation beneath the countertop, though 3 centimeters has become the industry standard. Then measure and cut the sides for the cutout, attaching them by butting them against the edges of the base inside the cutout. Add stucco wire to the concrete, to add strength and prevent cracking. The result is a normal-height countertop that's easily supported by standard cabinets. But don’t forget to account for the amount of water in the pigment when measuring the water for the concrete. Pigment additives come in powder or liquid. I started my Bachelors degree program and hubby had to go back to work, but we have been weekend warriors trying to get everything done. Oversized Countertop ExamplesClick through to see more images and read about how each of these projects were created. Use metal snips to cut the wire to the shape of the mold so that it comes about 1 inch off the edges all around. Wearing a respirator, start with 100-grit sandpaper. Mixing the concrete correctly is critical to its strength and durability. Use a table saw to make the cuts. When done, wipe the slab with a damp rag to remove any loose grit and concrete dust. Cut the sides of the mold. Do-It-Yourself or Hire a Pro? Larger thicknesses … Remember that the concrete at the bottom of mold will become the top of the concrete slab. We incorporate lightweight cores and then use layers of metal/fiberglass mesh and specialty concretes,” says Jaegli. Hate the look of your old, dated countertops? You can find galvanized structural stucco wire at most concrete supply stores. Wear eye protection, a respirator and acid-proof gloves. Keep sanding and testing until each edge and surface feels smooth to the touch. This is definitely the more time consuming option (took my husband about 40 hours total), but I believe these are the best looking concrete tops I've seen thus far. You'll need to work progressively from 100-grit sandpaper, finishing with 220-grit. Global Surface Solutions in Kelowna, British Columbia. Wipe the surface thoroughly with a sponge dipped in the acid solution. Concrete countertops are really no different than any other type of countertop surface when it comes to cleaning and maintenance. Set … Once the outer mold is done, you’ll need to build a support frame to surround it. Your objective is to slightly overfill the mold. Venetian plaster is an easy, inexpensive option for adding color and texture to your walls. Enter Concrete Countertop Solutions, I found them while searching and researching all I could about pour in place concrete countertops. Anything less, and you risk cracking, anything more, and it is simply too heavy. Measure the mold and cut a series of 2x4s for a support frame around it. Remove the 2x4 support frame from the sides and ends of the mold. Let the concrete cure at least a week—the more it cures, the stronger it gets. Read More. Then add the remaining two side pieces and attach them to the first two, completing the frame. Once cut, set the wire aside until you’re ready to pour the concrete. Place a sheet of 3/4-inch melamine particle board that is larger than your finished dimensions on two sawhorses. Rinse the slab with fresh water to remove the acid mixture, and let it dry completely. About five years ago, after looking at Fu-Tung Cheng’s book, Concrete Countertops, I decided that when I replaced my kitchen cabinets, I would build concrete countertops. Concrete apprentice Mike Ferrara shows how to build a custom concrete bathroom countertop. These tops are heavy so If you have good cabinets your fine. Use an orbital sander to remove any imperfections along the surface and edges. DIYNetwork.com has detailed instructions on how to build a concrete countertop. “Depending on the application, we will employ different systems to reduce countertop weight. Add water to the concrete and mix with a shovel per the manufacturer's instructions. Most countertop materials are costly and difficult for the do-it-yourselfer to fabricate and install. Depending on the overall dimensions, joints or seams are often incorporated to accommodate handling. Full article: A cast in place countertop . The key to a great countertop is a well-built mold to pour the concrete into. How much do concrete counterops weigh? Get help from another person or two to flip the slab over. I've seen concrete countertops on Pinterest and in design magazines, but I recently discovered how easy these were to do at home. Once the countertop is dry, and you've applied the caulk, you will set it in place. Each strip should be 4-feet long. With GFRC, the slabs can be cast in thinner sections than similar pieces made with traditional concrete, reducing the weight by as much as 75% while still maintaining tensile strength. DIY Concrete Countertops Using Self Leveling Cement! The key to a great countertop is a well-built mold to pour the concrete into. Concrete countertops are becoming more and more popular, mainly because natural stone is durable. That moment arrived last summer, and when I couldn’t find Cheng’s book, I bought his new one, Concrete Countertops Made Simple, which came with a DVD. © 2021 Discovery or its subsidiaries and affiliates. Run a small uniform bead of 100-percent silicone caulk in all the inside corners and seams of the mold. Remove the screws holding the mold sides to the base. To determine the size of your countertop, measure the base cabinets or your existing countertop. How to Create and Install Concrete Countertops. SOLD. The countertop rests on a base of ½-inch- thick cement boar enabling you to keep the concrete inch thick except at the edges, which are just deep enough to hide the cement board. Smooth the concrete surface with a hand trowel. Lay three boards underneath the mold - lengthwise, each a bit longer than the actual mold. Sand evenly, checking the smoothness with your hand. This 36-foot long bar countertop was created without seams and to appear extra thick. To settle the concrete, use an orbital sander without sandpaper against the sides of the mold. For our 12-square-foot countertop, we needed three 60-pound bags of ready-mix concrete. After cutting the mold, attach the sides cut to the desired thickness. Carefully clean the mold of sawdust and other materials. Other items needed are: Easy DIY Concrete countertop tutorial that even dummies can understand. You don’t want a misstep that will cause a chip or any breakage. Plus, concrete can be very difficult to work with, making it a rather tricky look to DIY—but not if you use this clever hack, featured on Hometalk and created by … Making your own concrete countertop is one of the more challenging—and rewarding—DIY projects. It can be installed over any other tightly bonded flooring, making it ideal for retrofits. You’ll use this under hang to support the end 2x4s. We started by placing 3/4″ plywood on top of the outdoor kitchen area, and then screwed the 2 x 3’s in from the bottom. To start the cut, drill pilot holes on the inside corners of the portion that will be removed. Browse a full list of topics found on the site, from accessories to mudrooms to wreaths. Making your own concrete countertop is a fun and extremely low-cost project. Our island countertop will be 3’ x 4’. Get video instructions about kitchens, bathrooms, remodeling, flooring, painting and more. If measuring the base cabinets, add an extra 3/4" for an overhang. Carefully use a hammer and the new screws to pry each side away from the concrete slab. So I dug into some options and realized that you could actually coat your current countertops in concrete. If you’re a rookie, keep your goals simple. My laundry room countertops were a thick, dated laminate. WeightA 1 ½ inch thick countertop made of standard concrete has an approximate weight of 18.75 pounds per square foot. Concrete countertops can cost anywhere from $70 to $90 (or more) per square foot, according to HGTV. But do NOT attach the frame to the mold itself. Hard Topix Precast Concrete, Jenison, Mich. When the slab comes out of the mold, it’s going to have imperfections. Install new ceramic, porcelain, glass or stone tiles above a countertop to brighten a kitchen or bath. How to Build a Concrete Bathroom Countertop . When done, wipe the slab with a damp rag to remove any loose grit and concrete dust. Smooth the bead with a caulk tool and let dry thoroughly for 24 hours. If you want to add color to the countertop, now’s the time to add pigment to the mix. Join two of these 4-foot strips to the 4-foot sides of the base, using two-inch wood screws. Rather, the 2x4s the frame should be attached to each other and the mold should lie within the frame. Bring the countertop in, set it in place, and press down gently to seal the caulk. Keep one hand on the top of the sander as you polish the edges. Making a concrete countertop does require an understanding of the basics of working with concrete. These seams can often be concealed with color-matched grout or a veined finish, or they can even be used as an attractive design element (see this massive concrete dining table made of three slab sections joined by decorative stainless steel bands). Measure and mark the exact dimensions on the mold base, then cut using a circular saw (image 2). There are several ways you can make concrete countertops and several recipes for the concrete out there. Take your time with this step. Countertops made of concrete really have no limitations in size, depending on the materials and casting techniques used. Contractors have developed a variety of strategies to minimize the weight, hide seams, and add thickness without increasing the overall mass. QUIKRETE Countertop Mix. My husband did a lot of research and decided on this path that I'm about to share with you. A mild soap and warm water is recommended for daily cleaning. To appear to be thicker than a normal 3cm edge, it has a feather mitre. QUIKRETE Countertop Mix is a specially formulated flowable high-strength concrete mix for pre-cast and cast-in-place concrete countertop applications. Run a small uniform bead of 100-percent silicone caulk in all the inside corners and seams of the mold. Copyright 1999-2021 ConcreteNetwork.com - None of this site may be reproduced without written permission. With some basic knowledge, you can prevent these basic problems with concrete countertop mix designs. Concrete countertops are becoming more and more popular, mainly because natural stone is durable. Be prepared; you’ll go through plenty of sandpaper and this is a dusty process. Use clippers to cut the stucco wire to size. This project is a simple, 2' x 6', 2" thick countertop island with a smooth surface and a cutout for a square cooktop. Wearing a respirator, use a sander to smooth the concrete countertop. Easily customized to your decor, concrete adds elegance to any bathroom. The basics for making a concrete countertop are simply building your mold, pouring and finishing the concrete. Controlling the amount of water added to the concrete mix is critical to producing consistent color. There are several acceptable materials for building the form, but we chose cheap and easily obtainable...melamine coated particle board. (Granite is approximately 18 pounds per square foot.) Quartz countertops are most commonly 2 or 3 centimeters. On this kitchen island, for example, the top is 1 ½ inches thick overall, but appears to be much thicker because it was cast with a 6-inch drop-front apron. Then attach the sides by drilling 2-inch pilot holes every 6 inches. Remove the screws holding the mold sides to the base, then use a hammer and the new screws to pry each side away from the concrete slab. Liquid pigments are easy to measure and mix, especially with small concrete batches like this one. The frame should be tight against the mold, to prevent the heavy concrete from pushing the mold out of shape. You can also use the tip of your finger to smooth out the caulk. Set the galvanized wire into the concrete, taking care that it does not touch the edges of the mold. This will be added to the concrete during the pour to add strength and prevent cracking. You want a standard, smooth edge. 6 problems with concrete countertop mix designs and how to prevent them Murphy’s Law states, “Anything that can go wrong will go wrong.” This doesn’t have to be the case with concrete countertops. Keep applying coats until the concrete won’t absorb any more. Let's get together. How thick should concrete countertops be? I wanted to replace them so badly. A 6” thick and heavy-looking drop edge front can be achieved but does not require the entire countertop to become 6” thick. Step 1 of do-it-yourself concrete countertops to build the forms. The concrete you’ll be pouring is heavy – about 10 to 15 pounds per-square foot and you don’t want the edges of the mold to bend with the weight. 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