Joist spacing refers to the distance between joists and is measured in centimetres or inches. If you draw a line down the centre of two joists and measure the distance between them as 600mm or 24 inches, then the joist spacing is 600mm or 24 inches centre to centre. Galvanized hanger nails:You need 1 1/2″ joist hanger nails. Joist hanger nails are hot-dipped and galvanized. Be sure you have enough nails on hand to fill each hole on every hanger. A circular saw:Use a circular saw to cut lumber to meet your project dimensions, according to the recommend joist length and width.

C16 Timber: C16 is the most commonly used form of timber. It can be used in many different applications and is the most cost effective option. C16 timbers are kiln dried to minimise the amount of moisture in the wood. This grade of timber which is commonly used in internal construction such as floors, walls and roof joists is not only cost effective, it has the strength and other properties such as bending, compression and density which are required for construction. As strong, versatile and cost effective this grade of timber might be, it does have some defects, such as grain deviations which may affect the strength of the timber as well as some cosmetic defects such as sap stains and sometimes and an uneven surface. These are fixed to joists using 100mm landscape screws. If possible, fix the newels so that two faces can be secured through two joists at 90' to each other. 8. Fitting StepsBeam Configuration – Ledger to Beam, Free Standing (joists resting on beam), or Joist Hangers (joists attached to beam sides with hangers) Pressure-treated or wood preservative doesn’t affect the strength of wood, incising however does. Incising is the process of infusing preservative deeper into the wood through small 1/4” deep cuts on all surfaces. Incising weakens the wood slightly, so it often is rated for shorter distances. Handrails are calculated with the newel posts at 2m centres. You will need to add one newel posts for every time there is a gap in your total length. Cedar has a natural wood preservative that protects from rot and insects. However, cedar will gray with age and requires cleaning and sealing or staining regularly. It provides a warm wood glow that many appreciate. It too comes in 2-by and 5/4 dimensions.

Typically, going with 12-inch or 16-inch joist spacing is a safe bet for the project, but if you want to ensure the spacing is adequate for the project, use the following formula: Wood treatment or joist tape:Be sure to apply wood treatment or joist tape to every cut end of lumber to prevent moisture damage and warping. Pressure treated lumber is one of the most commonly used products. It's available in a range of sizes, including 2x6, 2x8, 2x10, and 2x12. Similarly, cedar, pine, and fir wood can be found in 2x6, 2x8, 2x10, and 2x12 sizes. If you are set on steel joists for the project, then you are generally limited to 2x6, though this size comes in both 16 gauge and 18 gauge. In the United States, ASTM D7032 Label is the standard. In short, everything designed in a lab must be tested in a lab to know its strengths and properties. Tables and span calculators frequently provide joist dimensions, span, and spacing values based on a dead load of 10 pounds per square foot (PSF or psf) and a live-load of 40psf. The height off the ground, wind-load, snow-load, soil-load capacity, and potential seismic forces also factor into the span.Learn more about the UltraShield® advantage, or find a NewTechWood distributor near youto get started. Although laying and installing joists is a straightforward process, there are several things to consider, especially regarding size and spacing. Getting board dimensions or spacing distance wrong can compromise the integrity of your structure, and might even violate some local building codes.

A Joist Span calculator commonly identifies the maximum span and cantilever for dimensional lumber joists based on wood type, joist size, and spacing between joists. All you have to do is input the information, press calculate, and the maximum span is identified.Four very popular types of spindle are usually used the Square, Chamfered, Colonial and American and each of them can be installed using a universal hand/base rail shown here. The spindles are held in place simply by fixing the infill strips between each spindle in both the top and bottom rails. Ecodek is a trading name of Specialist Building Products Limited, a wholly owned subsidiary of the Epwin Group.