Mar 20, 2013 . Another option for determining spans is to use the span charts in the American Wood Council's DCA6-09, Prescriptive Residential Wood Deck Construction Guide (free at awc.org/publications). Keep in mind that joist spacing may be dictated by the type of decking boards to be installed and how they are to..
Choosing good lumber will make your deck look better, last longer and go together faster. These 10 tips that will help you choose better . Pressure-treated lumber is the logical choice for the structural part of your deckthe posts, joists, beams and other members you normally don't see. Pressure-treated lumber can support..
Types of Lumber. wood, deck, patio. Lumber used in deck construction generally falls into one of the following categories: Pressure-treated lumber (PT), usually pine or fir, is infused with chemicals that make it extremely rot-resistant. . Cut cleats and stiffeners from 2x4s, joists and beams from 2x6s, 2x8s, 2x10s, or 2x12s
Nails & Screws for Wood Framing, Structural Fasteners, screws, nails, bolts, hidden fasteners used for wood frame construction, including deck & porch construction Choices of deck nails, screws, coated fasteners, and hidden fasteners for deck floor, railing, joist hanger, and other construction connectors Using drywall..
6. PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE. American Wood Council. Figure 4: Beam Assembly Details. DECK FRAMING PLAN. A framing plan shows the joist and beam layout; the location of the ledger board, posts, and footings, and the type, size, and spacing of the ledger board fasteners
Use Table 2B for joist framing from both sides. Beam may overhang past the supporting post up to one-fourth the beam span as indicated in. Figure 3. Beams with multiple members shall be assembled in accordance with Figure 4. Courtesy of American Wood Council - Leesburg, VA. Figure 3. Beam Span Types. Page 5
DECK FRAMING PLAN. A framing plan shows the joist and beam layout; the loca- tion of the ledger board, posts, and footings, and the type, size, and spacing of the ledger board fasteners. See Figure. 5 for an example of a typical deck framing plan. Figure 5. Typical Deck Framing Plan. Lumber species: (see Table 1, 1A)
However, decks have to withstand moisture and inclement weather and may be framed with incised treated lumber which means that those joist ratios won't be accurate. Now the 2015 IRC makes it easy to calculate joist spans for US builders with a new joist span table R507.5: Deck Joist Spans for Common Lumber..
Manufacturers usually make wood beam hangers to hold specific pieces of dimensional lumber. Many architects and builders usually refer to joist hangers by their size. For any joist hanger to support structural framing members safely, it has to be resistant to corrosion. The most common types of rust-resistant joist hangers..
Nov 1, 2006 . Recent Breaktime threads about joist hangers and the new pressuretreated lumber indicate that some builders use only stainless-steel joist hangers and nails. But in FHB #178 (p. 30), Mike Guertin uses a self-sticking waterproofing membrane (Vycor Deck Protector) with regular galvanized hangers
Aug 7, 2017 . But there is some confusion about when building codes require you to mitigate rot, specifically in deck construction. Codes recognize that wood simply getting wet does not cause rot. The natural world is constantly wetting and drying, and as long as both are occurring in cycles, all is good. But if wood can't..
Mar 19, 2012 . Always follow manufacturer guidelines for appropriate fastener types and sizes, and use stainless-steel or galvanized fasteners if you are using pressured-treated lumber. The error: Incorrect fasteners in hangers are a notorious mistake. For example, deck screws are not a proper way to attach joist hangers,..
In general, ledger boards are the same size as the floor joists. After selecting a straight piece of lumber for the ledger board, the ledger is bolted to the house's framing. Given the potential for injury should the deck break apart from the house, it's important to select the right type of bolt, as well as, the correct size and spacing..
Wood Species. The stronger the wood, the smaller the lumber that can be used to create your joists. Most deck frames are made from treated white wood, or pine, which has strengths almost identical to untreated pine. Other common deck materials include cedar, redwood and Douglas fir. Each has its own strength rating
Jul 25, 2011 . Until recently, the zinc coating on the steel joist hangers prevented corrosion by the most common wood preservative, chromated copper arsenate (CCA), and . and bottom plates of stud walls attached to concrete, and as joists in cl spaces under buildings and supporting decks and exterior stairways