Open vs. Closed Grain. This wood features a closed grain with moderate definition and is rough textured. Pine has straight grain and is popular for furniture and flooring. Filling pores with a homemade slurry. Distinct color variations occur and the grain can appear straight or erratic depending on how it is cut from the log. The proper sealer and primer, however, can hide the grain and allow the paint to form a smooth, even color. Grain Grain refers to the fibers that make up the wood. Some species of wood have figure that is much more common than in other species: for example, curly figure is fairly common in soft maple, and the curls are usually well-pronounced and close together. Her published work includes travel and informational articles, a review in the Woodcarver Online Magazine and the "About Us" section of Webpato.com. So they need to be sanded with higher grits before the sanding scratches will disappear. Hardwoods have special longitudinal cells called vessel elements. Hardwoods can be either open grain or closed grain. Scrub the wood with a soft sponge to raise the grain. Butternut, pine, oak and other types of wood with large pores are considered to be open- or coarse-grained. Question- I keep seeing posts that say closed grain is better than open due to fact open grain tends too hold the bacteria. These unusual characteristics are not specific to one type of tree. Each grain of pollen is equipped with two small wing-like structures that help the pollen become aloft in the air and promote a wide distribution. Walnut can range from straight-grained to patterned. The Southwind Milling Co. rice mill, at the Port of Pine Bluff’s industrial development district on the Arkansas River, was closed down Monday by the state Department of Agriculture. Western red cedar, redwood, cypress, poplar and aspen have straight grain. Zebrawood has wide, sometimes swirling dark lines. The grain of Heart Pine is open and broad with some knots as well. Squigglies. Grain Grain refers to the fibers that make up the wood. Teak has straight grain and is used for outside furniture due to its weather resistance. It's the cells and how they're arranged in bands called rays, and the size and distribution of pores, that make the difference between fine-textured wood and coarse-textured wood. While painting with pine cones Livia discovered that some of the pine cones that were shut up tight began to open, and so we had to explore. The texture is affected by the size and variation of the wood’s longitudinal cells as well as how they are arranged. But staining, on the other hand, adds beauty to the natural grain of some woods. Stain soaks into the end grain of these types of wood more readily than the rest of it, creating a blotchy look. <