what grit sandpaper for wood deck

3. Get it free when you sign up for our newsletter. Sandpaper is rated in numbers and is runs from very coarse at 60 grit all the way up to very fine at 240 grit. Aggressive scratching is good when you want to remove a lot of material, shape an edge, or remove old paint or blemishes, but the coarse sandpaper also leaves deep scratches in its wake. Sanding with sandpaper that is too fine will require a lot of sanding and effort to get to the desired results. Choosing the right sandpaper grits and using them correctly is something of an art form. Orbital sanders come with rectangular and round pads.

Courser sanding paper could damage the wood further and finer sanding paper will take too long. To use sandpaper properly, you must know how to choose the right grits. This is a good time to sand the railing with a palm sander, if you plan to refinish it. Whether you're a beginner or you're a regular do-it-yourselfer, our checklist will take your paint job from "good" to "amazing." Pound down any nails that are sticking up with a hammer. The trick, then, is to start with the highest grit (coarsest sandpaper) that will meet your needs relatively quickly, then move up to progressively higher grits (smoother papers) as the surface gets closer to the finished product—and to stop when it's smooth enough for your liking. Make sure the deck is clean and dry before sanding. Coarser, or lower-grit, sandpaper removes wood and other materials faster and with less effort than finer sandpaper. So, for example, 24- or 40-grit sandpaper is a very coarse, rough sandpaper, while the 1,000-grit paper is extremely fine with very small abrasive particles. In general, the process of preparing any surface for painting or finishing involves sanding with progressively finer grits until you reach the desired level of smoothness. If you use a transparent penetrating finish, you need to wait for only 24 hours.Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. The finer the paper, the smoother the surface. Either one is suitable for sanding your deck.Sand the entire deck with 80-grit sandpaper. The Spruce uses cookies to provide you with a great user experience and for our Outlets that rent flooring equipment usually stock these sanders, and they also sell the sandpaper you need. Use sandpaper that is too coarse, and the surface will be too rough to paint or finish smoothly, or you may sand away fine detail on a furniture piece. Use 60-150 grit sanding paper or discs will work best. When spreading varnish, however, you get the best results with a paintbrush.Let semitransparent stain or varnish dry for 48 hours before walking on the deck. The concern here is that if you switch to a fine paper too soon, you'll spend a lot of time sanding to get the results you want. No matter what finish you use on your deck, you'll have to strip it and refinish the wood at some point if you want it to look its best. As a landscape builder, he helped establish two gardening companies.

Rent an orbital flooring sander and enough 80- and 100-grit sandpaper to sand your deck. The higher the number, the finer the grade. The wood is now open and ready for a finish, which should be applied as soon as possible to get the best penetration and most uniform color.Apply a clear finish, semitransparent stain or UV-blocking varnish, as desired. Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 12 years. If you're not careful, this can easily damage your project. Types of deck wood Hardwood (lumber from deciduous trees, such as redwood) can handle sanding with 20-grit sandpaper if necessary to correct warpage. Transparent finishes last for about two years, but you may be able to wait four to five years between treatments if the deck has a semitransparent stain or finish that blocks ultraviolet light. Use 100-grit paper for the railing unless you need to remove a heavy coat of finish. If a nail is loose, pull it out and drive a 3-inch decking screw into the board about 1/2 inch from the nail hole.Clean the deck with a broom, and use a putty knife to remove debris that has lodged between the boards. The very fine sandpaper which has a grit grading of P1200 or more.

Remember to take it easy while sanding so as not to cause damage to your wood. The number scale refers to the number of holes per square inch in the screens that are used when sieving the abrasive grains during the sandpaper's manufacture. If so, mop the deck with a wood deck detergent and water. You will want to sand with the wood grain and use the proper grit sanding paper. Sandpaper grit is sized by a gauge number, with lower numbers signifying larger, coarser grits. 3 – Sand the Board Edges. There isn't any need to wash the deck before sanding unless it is covered with sticky deposits that will gum up the sandpaper.

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