Fixings

Fixings for Decking Nails - Always use annular grooved nails.  Timber decks swell and shrink over time as they get wet and dry out, overtime this can cause nails to be lifted and pop up.  Using annular grooved nails massively reduces this problem. Predrilling - Predrill all holes, especially hardwoods.  This will help minimise splitting, if you are nailing near the edge or end of a hardwood board, predrilling dramatically reduces timber splits. Spacing - Not only do the gaps between decking allow water to run off, they give room for the timber to expand and shrink (as it gets wet and dry), never try to lay a deck with no or a very small gap.  The timber can swell by 5% (even more in certain species), this equates to 4.5mm for 90mm wide decking, so leaving a big gap is crucial. Span - Not all timber decking can span 600mm, most softwoods (and some hardwoods) should only be used over a 450mm span, depending on their thickness. Fixings for Flooring Glue Type - There are many diferent types of glues available, but it is best to talk to the glue manufacturer (Selleys, Bostik, etc) to get the most up-to-date product information.  Generally speaking when laying over particle board and concrete a screed glue applied with a special comb will ensure an even glue coverage, make sure the concrete is sufficiently dry and/or sealed though. Wide Boards - It is import to face fix all flooring that is wider than 90mm Cover, that is nailing directly through the face and filling or plugging the hole before sanding and coating.  This is to prevent the flooring cupping or peaking (ridges forming along the joins as a result of expansion).  Narrow boards may be secret nailed and/or glued. We have an in-depth T&G Flooring Installaion page in our Learning Centre. Fixings for Weatherboards Silicone Bronze Corner Soaker (for Horizontal Bevel Back Weatherboard)  We sell a wide range of nails and soakers for weatherboards.  Both silicone bronze and stainless steel. Silicone Bronze Nails   Fixings for Weatherboards (as from Table 24 of E2/AS1 1-July-2005): Finish Method  Profile Fixing size and type Minimum framing penetration Fixing pattern Paint finish Direct Fixed Horizontal Bevel Back 75 x 3.15 JH nail 35mm Single fixing 10mm above top of lower board. Horizontal Rebated Bevel Back 60 x 2.8mm JH nail 35mm Single fixing 10mm above top of lower board. Horizontal Rusticated 60 x 2.8mm JH nail 35mm Single fixing 10mm above top of lower board. Vertical Shiplap 60 x 2.8mm JH nail 35mm Single fixing 10mm from side lap.  Dwangs at maximum 480mm centres. Vertical Board andBatten (Board) 60 x 2.8mm JH nail 35mm Single fixing in centre or nails clenched over each side.  Dwangs at maximum 480mm centres. Vertical Board and Batten (Batten) 75 x 3.15 JH nail 35mm Single fixing in centre of batten.  Dwangs at maximum 480mm centres. Over Cavity Horizontal Bevel Back 90 x 4.0mm JH nail 35mm Single fixing 10mm above top of lower board. or 75 x 3.15mm annular grooved nail 25mm Single fixing 10mm above top of lower board. Horizontal Rebated Bevel Back 75 x 3.15mm JH nail 35mm Single fixing 10mm above top of lower board. Horizontal Rusticated 75 x 3.15mm JH nail 35mm Single fixing 10mm above top of lower board. Finish Method  Profile Fixing size and type Minimum framing penetration Fixing pattern Stained or Bare finish Direct Fixed Horizontal Bevel Back 65 x 3.2mm RH annular grooved nail 30mm Single fixing 10mm above top of lower board. Horizontal Rebated Bevel Back 50 x 3.2mm RH annular grooved nail 30mm Single fixing 10mm above top of lower board. Horizontal Rusticated 50 x 3.2mm RH annular grooved nail 30mm Single fixing 10mm above top of lower board. Vertical Shiplap 50 x 3.2mm RH annular grooved nail 30mm Single fixing 10mm from side lap.  Dwangs at maximum 480mm centres. Vertical Board and Batten (Board) 60 x 3.2mm RH annular grooved nail 30mm Single fixing in centre of board.  Dwangs at maximum 480mm centres. Vertical Board and Batten (Batten) 75 x 3.2mm RH annular grooved nail 30mm Single fixing in centre of batten.  Dwangs at maximum 480mm centres. Over Cavity Horizontal Bevel Back 85x 3.2mm RH annular grooved nail 30mm Single fixing 10mm above top of lower board. Horizontal Rebated Bevel Back 70x 3.2mm RH annular grooved nail 30mm Single fixing 10mm above top of lower board. Horizontal Rusticated 70x 3.2mm RH annular grooved nail 30mm Single fixing 10mm above top of lower board.  Please Note:    1) RH = Rose Head, JH = Jolt Head  2) Nail lengths are designed for minimum framing penetration of framing.  It the      thickness of the batten or cladding is varied, then the nail length should be      adjusted accordingly.

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