Building Lumber, Utah Lumber, Home Lumber Supply, lumber yard

Whatever your Utah lumber needs, we’ve got a forest full

From wood products to engineered wood and hardware, Sunroc Building Materials is Utah’s lumber supplier of choice. We are the number one Utah lumber supply store with 9 locations across the state and in Idaho. Visit any of our lumber supply stores to have us fill your next order. Find us in St. George, Cedar City, Springville, Lindon, Salt Lake City, Ogden, Logan, Idaho Falls and Rexburg.

Be it a new build or DIY home improvement project, Sunroc Building Materials offers the lumber options you need for both commercial and home lumber jobs. We are also proud to offer several “green” products and materials to support construction professionals and homeowners practicing local environmental responsibility and sustainability here in Utah.

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Lumber Resources

Downloadable resources for the lumber professional

Click on the links below to download a PDF.

Lumber products

Wood products

  • 2×4 Studs Dry Douglas Fir/Larch
    (Available in six trims: 92 5/8”, 94”, 96”, 104 5/8”, 116 5/8”, 140 5/8”)
  • 2×6 Studs Dry Douglas Fir/Larch
    (Available in four trims 92 5/8”, 96”, 104 5/8”, 116 5/8”)
  • 2×4 #2 PET Dry Douglas Fir/Larch
    (Available in six trims 92 5/8”, 94”, 96”, 104 5/8”, 116 5/8”, 140 5/8”)
  • 2×4 — 2×12 Dry Douglas Fir/Larch
    (Available in 8’ to 20’)
  • OSB 7/16” – 23/32” T&G
    (Available in 4×8, 4×9, 4×10)
  • Fir Plywood 1/4″ to 1 1/8”
  • Treated Dimension 2×4 – 2×10
  • Composite Decking
  • 2×4, 2×6 Redwood
    (Available 8’ – 20’)
  • S1S2E Dry Western Red Cedar 8’ – 16’
    (Available in 1×4 – 1×12)

Engineered products

  • Joist, stock 8’ – 60’
    (Available in four depths: 9 1/2″, 11 7/8”, 14”, 16”)
  • Laminated Veneer Lumber, stock 8’ – 60’
    (Available in seven depths: 5 1/2″, 7 1/4″, 9 1/2″, 11 7/8”, 14”, 16”, 18”)
  • Stair Stringers
  • OSB Rim Board
    (Available in four depths: 9 1/2″, 11 7/8”, 14”, 16”)
  • 1/2″ and 5/8” Gypsum 4×8 sheets


  • Hillman nuts and bolts — multiple sizes available
    (Carriage bolts, lag bolts, hex head bolts, washers, nuts)
  • Simpson hardware and connectors
  • Gun nails
  • Builder’s hardware
    (Hammers, chisels, staples, etc.)

Our promise to you: if we don’t have what you’re looking for in stock, we will special order it.

Products available through special order

  • Timbers
  • Timber trusses
  • Glu-lam beams
  • Specialty hangers
  • Windows
  • Fiber cement siding/trim
  • LP SmartSide Siding and Trim
  • Cedar shingles/siding
  • Composite railing
  • Fortress metal railing
  • Power tools
  • Metal roofing

Lumber glossary – What’s What in Building Lumber Terminology

4/4 Knotty Pine

  • A board of random width that is 1″ thick and is of the species Knotty Pine.


  • A board with a thickness of 2” in the rough would be described as an 8/4 (eight quarters) thick board.

Air drying

  • A method of seasoning wood that allows covered stacks of cut building lumber to dry naturally in open air.

Annual ring

  • The rings that are generated each year as a tree grows. The age of the tree can be determined by counting the growth rings. The size of the rings can also indicate what type of growing season occurred during the year.

Appearance lumber

  • A variety of non-structural grades intended for applications where strength is not the primary consideration.


  • Smooth aggregate placed on the surface of the roof to weigh down the roofing. Also protects the roof materials from ultraviolet light.

Band joist

  • Piece of lumber to which the ends of the joists are nailed or screwed. A band joist is critical to the strength of the floor system because it holds the regular joist ends in their vertical position.

Base shoe

  • Molding placed at the corner between the base molding and floor. Usually used when a wood-finish floor is installed.

Beadboard/Beaded board

  • A board having a half-round profile milled into one edge.

Beam pocket

  • Notch or opening at the top of a bearing wall or supporting column that secures and bears the weight of a beam.

Bearing wall

  • Any wall that supports a load above it, such as a roof system or a floor system. A bearing wall is a structural part.


  • A symbol for board foot.

Bird stop

  • Material used to fill the space under the first course of tile at the eave line to prevent birds from nesting in the roofing.


  • Joint between two boards made by using a biscuit saw to notch out the ends of the joined boards. A pre-manufactured biscuit fits into the slots made by the biscuit saw. The glued biscuit swells as the glue soaks in, forming a very tight fit when the joint dries.

Blind nailing

  • To drive a nail into a part of the board that will not be visible on the finished product. See also face nailing.

Board foot

  • A unit of quantity equal in volume to a board 12” long x 12” wide x 1” thick.


  • The lower section of a trunk of a tree from the ground to the first limb or branch.


  • Longitudinal distortion of building lumber from a true plane, from end to end.

Brad nail

  • A slender wire nail with a small barrel-shaped head.


  • A wart-like growth or bump on the trunk of a tree that when cut into veneer produces a speckled pattern. Burled walnut, maple and rosewood veneers are especially prized by woodworkers.


  • The broad base of a tree trunk that provides the strength for a tree to support its own weight.


  • The curvature built into a beam (in a direction opposite to the expected deflection) to prevent it from appearing to sag under a loaded condition.


  • The portion of a structural beam, which extends, or “cantilevers,” beyond the end support, and whose end is not supported.


  • Structural panel grades are generally identified in terms of the veneer grade used on the face and back of the panel. The minimum grade of veneer permitted in exterior plywood is C-grade. D-grade veneer is used in panels intended for interior use or applications protected from permanent exposure to weather such as roofing and sub-floors. CD plywood with exterior glue not intended for long-term exterior use, must be covered.

Chair rail

  • A molding installed on a wall at a height that will protect the wall from damage due to the backs of chairs coming in contact with it. In modern times, a building lumber product used more for decoration than for function.


  • Lengthwise splits in wood that may occur as wood is dried or seasoned. Typically occurs across the rings of annual growth.


  • A diseased condition of green plants marked by yellowing or blanching.


  • Conifer species are trees or shrubs of the evergreen variety that bear cones. An example would be the pine.

Coniferous Forests

  • Forests comprised of mostly cone bearing trees such as pine forests.


  • The center layer of plies, particles or wooden strips in a manmade board.

Cripple rafter

  • A rafter that runs from a hip rafter to a valley rafter. A cripple rafter never reaches the wall top plate or the ridge board.


  • Short studs that are used to fill the gap under the windowsill and between the header and the top plate if there is a gap. Also used in a nonbearing wall to fill the space above the door opening and the top plate when no header is required.


  • Sawing across the grain of piece of wood.

Dead load

  • A permanent load consisting of all building parts and built-in fixtures that will be supported by a structural part.


  • Trees are classified as deciduous if they shed their leaves annually. Typically these trees are of the hardwood variety, however, some softwood varieties also drop their needles annually.


  • A downward vertical displacement due to a load.

Design Span

  • Span used to calculate the strength and deflection of a member usually measured from center to center of the bearing surface at each support.

Dimension lumber

  • Building lumber that is sawn and planed to standard sizes and lengths 2×4 through 2×12 inches across the grain by 8 to 24 feet in length. Most often used in construction.

Dressed lumber

  • Wood that has one or more planed surfaces.

Drying in

  • The process of making new construction weather-tight.


  • Interior wall finish using mostly non-flammable materials. While drywall actually refers to any interior finish made from plaster or gypsum board, in common usage it usually refers to a finish made from gypsum board.


  • The early part of a growth ring, consisting of pale inner wood with thin walls, formed in the spring and early summer. Also known as springwood.

Eight quarters

  • The thickness of a board “in the rough” is defined in quarter inches. Four quarters (4/4) is actually 1” thick. Five quarters (5/4) is 1-1/4″ thick etc. Therefore, an eight quarters (8/4) board thickness equates to 2″ thick.

End grain

  • The surface of wood exposed after cutting across the fibers.

Engineered wood

  • Lamination technology allows the bonding or gluing of individual, thin sections of wood together to form long straight lengths of building lumber commonly called engineered wood products. Floor joists, beams and timbers are manufactured from smaller trees, often from species once considered undesirable for building. This engineered process delivers quality and outstanding performance while also making more efficient use of our wood resources.


  • An exterior horizontal trim piece that covers the vertical edge of the rafter tails. It can also be called the finish fascia because it is installed over the rough fascia.

Finger joint

  • A joint that uses small tapered projections (fingers) that interlace to join two pieces of material.

Fire blocking

  • A piece of material installed to block the spread of fire from one side of it into wood framing members on the other side. The fire is forced to burn through the fire blocking before it can reach another part of the framing system.

Fire wall

  • A wall that has been designed to resist the spread of fire. Fire walls in homes are typically required between the garage and living space. Fire walls are usually rated by the hours they are designed to resist the spread of fire. A typical residential firewall rating is one hour.

Flitch beam

  • A structural beam comprised of layers of laminate to form a wider, more solid beam.

Fly rafter

  • A gable rafter that is located under the overhang part of the roof sheathing on the gable end. It is not directly supported by the exterior wall. Also sometimes referred to as the barge rafter or barge board.


  • Base upon which the structure will stand; it rests on the soil. A footing ultimately supports all of the weight of the structure. It is a structural part.

Framing lumber

  • Includes the grades intended for structural applications in both conventional and pre-engineered framing systems.

Frieze board

  • A horizontal trim piece installed at the top of the exterior wall, covering the joint between the soffit and the exterior wall. The frieze board is often ornately decorated.

Furring strip

  • Also called furr strips, they are often used on the interior of block or concrete walls. Furring strips can be made from either metal or wood. They are fastened to the walls, ceiling or floor system generally for the purpose of providing a surface to which the ceiling or wall covering may be easily attached.

Gambrel roof

  • A truss used at the ends of a gable roof, it has vertical members that are spaced to allow convenient attachment of the exterior wall sheathing.


  • A large horizontal beam that may be used to provide structural support at specific bearing points along its length. A girder is held up in position by columns or a bearing wall.


  • A structural glued laminated timber. An engineered (manmade) timber used as load-carrying structural framing for roofs and other structural portions of building. Refers to products made by bonding suitably selected and prepared wood laminations with adhesives.

Hardboard/Hard board

  • A generic term for a panel manufactured primarily from wood fibers that are pressed together under heat and pressure in a large press. Building lumber typically used as underlayment for floor coverings.


  • A beam used to support walls and/or floor and roof joists that run perpendicular to it.


  • The mature wood that forms the spine of a tree.


  • Point on a truss at which the top and bottom chords intersect.

Industrial lumber

  • Includes both structural and non-structural grades that are intended for specific applications. Mining timbers, scaffold planks, foundation lumber and stress-related boards.


  • The vertical member at the side of a window or doorframe. Also refers to the horizontal member at the top of the window or doorframe, as in head jamb, window jamb and doorjamb.


  • A parallel, horizontal framing members that support floor or ceiling loads. Joists may be made from wood, steel or concrete.

Laminated veneer lumber (LVL)

  • Structural grade timber veneers glued together under pressure to form a dimensionally stable and uniform product. An engineered wood product that is a substitute for dimensional lumber.


  • The part of a tree’s annual growth ring that is laid down in the latter part of the growing season.

Lumber grade

  • A system by which building lumber is ranked by strength or appearance.

Machine stress

  • Lumber that has been mechanically stress-graded to measure stiffness of the material. Determines the strength of a piece of wood. Engineers specify certain strength requirements when they design buildings. Machine stressed building lumber has been tested to certify that the wood meets the strength requirements.

Medium Density Fiberboard (MDF)

  • A composite panel made from wood fibers combined with synthetic resin or other suitable binder, bonded under heat and pressure.


  • Engineered building lumber made up of thin layers of wood. Micro-lam is used as a structural material for joists, headers, beams, etc.

Maching Stress Rated (MSR)

  • Machine stress rated framing lumber engineered to perform under pre-defined stress conditions.

Oriented Stand Board (OSB)

  • A structural, multi-layer panel of compressed strands (narrow wafers) bonded with a resin under heat and pressure in a press. Strands are oriented for strength in the core and face layers.


  • An engineered beam composed of thin strips of wood laminated together to form a structural framing member. Used for header beams and the like.


  • A panel manufactured from wood particles bonded together with synthetic resins under heat and pressure.

Plain sawn

  • A term used to describe how a piece of wood has been sawn. The log is cut with growth rings that meet the faces of the board at angles of less than 45 degrees.


  • Exactly vertical or true.


  • Plywood is produced from thin sheets of wood veneer or plies, arranged in layers, oriented perpendicular to adjacent layers. Plywood always has an odd number of layers, each consisting of one or more plies. Sometimes a layer consists of two or more plies with the grain running in the same direction. The grain of the face and back layers typically runs parallel to the long dimension of the panel. Arranging the plies perpendicular to each other is called cross-lamination and it gives the panel strength in both directions because the greatest strength of wood is with the grain. The finished plywood panel is produced by bonding the plies under heat and pressure using adhesives. The adhesive produces a structural bond between the plies that is as strong as or stronger than the wood itself.

Quarter sawn

  • A term used to describe a piece of wood that has been cut from a log with growth rings between 60 and 90 degrees to the faces of the board.


  • A sloped roof framing member that supports the roof sheathing, as well as live and dead loads, that are placed on the roof.

Rip cut

  • Sawing parallel to the grain.

Rotary cut

  • A term used to describe a continuous sheet of veneer peeled from a log by turning it against a stationary knife.

Running foot

  • A running foot is the equivalent of a 12″ length of material regardless of width. Basically the same as “lineal foot.”

Surfaced 4 Sides (S4S)

  • S4S stands for “Surfaced 4 Sides.” This term refers to a board that has been milled on all four faces so that opposing faces are parallel to each other.


  • A horizontal member that fills the gap between the exterior wall and the fascia.

SPF stud

  • A Spruce-Pine-Fir stud is a commercial softwood grade of 2×4 used for framing. Available in lengths from 8 to 10 feet.

Steam bending

  • The process of “bending” or shaping boards into curved pieces by exposing them to steam. The steam softens the fibers and allows the wood to be shaped using preformed templates and clamps. Common in rocking chair construction.


  • An engineered building component made up of dimensional lumber formed into a rigid unit. Trusses are used in roofing to form rafters and ceiling joists. Trusses are also used in creating floor joists.


  • Structural panels of compressed wafers bonded with resin under heat and pressure in a press. The wafers are either randomly or directionally oriented.


  • A defect in building lumber characterized by bark or a lack of wood at a corner or edge.


  • Someone who works with wood, usually a craftsman.