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LUMBER PANELING: PANELING BASICS PATTERN SELECTION AND INSTALLATION INFORMATION

SOLID PANELING Patterns Interior which paneling has been contains moisture-laden materials used for centuries in elegant and such as , plaster or tex- rustic settings; it has withstood tured drywall, should be dry the test of time, outlasting every before paneling is delivered or passing whim of . It is installed. Masonry or concrete beautiful when first installed, and walls should be waterproofed still beautiful after years of use. prior to paneling installation. It is a good practice to stack Pattern Selection all paneling in the room where it will be installed, with separators The eight patterns illustrated between the layers, for a week to in the next column are a few of ten days prior to installation. Any the many patterns available for grade may pick up moisture in use as paneling. Paneling transit or during storage and will patterns are often reversible, need some preconditioning. If offering a choice of pattern and preconditioning is not feasible, surface finish in a single pattern. use as narrow a width as possi- WP-4 and WP-11, for example, ble in order to minimize dimen- are V-grooved on one side and sional change. edged on the other. Other patterns may be smooth Priming and Sealing surfaced on one side and textured on the other. However, Once the paneling has it is important to remember that become dimensionally stable, it when paneling is graded after should be sanded and primed or manufacture, it is the patterned prefinished prior to installation side which is inspected. Prefinishing can minimize objec- tionable lines where joint lines Most dealers carry may appear later on. only a limited selection of panel- ing patterns in stock, but can Wood in kitchens, bathrooms, order any of the standard pat- or other high mois- Note: Numbers and letters under exam- terns and some dealers will ture areas, should be protected. ples are pattern indications; refer to WWPA’s A suitable installation in these arrange to have a pattern of your Standard Patterns publication (G-16), for an choice custom-milled. areas would include an applica- illustrated list of all WWPA patterns. tion of sealer to front, back, ends Preconditioning and edges of each piece. Solid wood paneling is a INSTALLATION natural material; it responds to climatic change. Preconditioning, Over Drywall, Plaster or allowing the wood to adjust to on-site atmospheric conditions, If walls are in moderately good is always desirable prior to instal- condition, construction mastic is lation as it allows the wood to usually the easiest, fastest way to become dimensionally stable for install solid wood paneling over the conditions of its permanent drywall, plaster, hardboard – location. even old paneling. To apply, “Knotty grades can have a follow the adhesive manufactur- higher moisture content than the er’s directions. “clear” grades. When installed in To help tighten joints while a heated room, without precondi- gluing, tack through tongue into tioning, paneling may be expect- drywall or plaster every two to ed to shrink. This shrinkage will three feet. Use small nails to hold be minimized by conditioning the paneling in place until mastic paneling prior to installation. sets. Over Framed or Masonry Select a finishing which is Additional information Walls long enough to penetrate block- Technical information on Nail directly to the ing or furring by at least 3/4- Western lumber products manu- members in both horizontal and inch. Only one nail per bearing factured by WWPA mills is avail- vertical applications. Vertical is necessary. able through the Association’s applications require furring strips Online Technical Guide at 48" on center. (See Figures 1 www.wwpa.org/techguide. The and 2.) Online Guide features sections on lumber grades, design values, specifications, properties and envi- ronmental information on Western BLIND NAILING lumber. For a full description of technical publications available for Rustic Patterns purchase and a printable order form, go to the WWPA internet site These patterns are difficult to at www.wwpa.org. blind nail and should generally You also can receive an order be face nailed. Use 8d finishing form via fax through the WWPA nails when face nailing to furring Fax Delivery by calling strips or studs; on other sur- 732-544-2876 and following the faces, make sure nail is long instructions. enough to penetrate stud by at least 3/4-inch. Panels 6-inches G-16 Standard Patterns or less require just one nail per - – Reduced scale profiles of WWPA FIGURE 1: FRAMED WALL bearing; for 8-inches or wider, patterns in detail with actual use two nails per bearing. Do dimensions. not nail through the overlapping joint as this restricts the neces- 560 Real Wood Interiors. sary swelling and shrinking of - A Design Workbook Ideas the wood. – and finishing techniques.

A-2 - Specifying Lumber – Specifying information for rough and finished materials.

TG-5 - Lumber Storage – FACE NAILING Lumber storage and handling for lumber mills, dealers and contractors. When nailing a board and pattern, fasten the under board with one 8d nail per bear- FIGURE 2: MASONRY WALL ing driven through the center of the “board.” Underboards should be spaced approximately NAILING 1/2" apart. Drive one 10d nail per bearing through the center Tongue and of the “batten” strip, so that the paneling shank passes between the in widths up to 8-inches wide is edges of the underboards. normally blind nailed through the Widewidth boards, if not thor- tongue. This eliminates counter oughly seasoned, may require sinking and filling nail holes and two nails per “board” in the Western Wood Products Association will result in a smooth, blemish board and batten sequence. 522 SW Fifth Avenue Suite 500 free surface. Blind nailing is par- Portland, OR 97204-2122 ticularly important when a natur- 503/224-3930 Fax: 503/224-3934 al or stained finish is intended. e-mail: [email protected] web site: http://www.wwpa.org

A-3/2102/Rev.1-01/web