All about decking - Decks Decks are a common addition to...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Decks Decks are a common addition to Auckland houses and come in a variety of shapes and sizes and construction methods and materials. They can range from a small entry deck to a most elaborate feature deck, and with a little bit of thought and artistic flair, can be a great asset to any house. This section concentrates on timber decks. DO I NEED A PERMIT FOR MY DECK? All decks 1 metre or more above ground level require a permit (building consent). A deck less than 1 metre above ground level does not usually require a building consent (permit) but may require resourse consent, and a deck extending less than two metres from the face of a building does not require subfloor bracing. Although a deck may not require building consent, it must still comply with the building code. In other words, it must be built properly. If in doubt contact your local authority DECKING MATERIALS EXPLAINED The three most common used decking materials are: KWILA 90x19 Hardwood - Finished size is usually 90mm x 18mm. Kwila is a redish colour, but once weathered changes to a silvery-grey colour. It is a very dense and durable timber. Kwila can span 400mm, which means the joists (the timber the Kwila is nailed to) must not be more than 450crs or 400mm between each joist. PINE H3 90x35 Usual finished size is 90mmx35mm. This board, because if its thickness, can span up to 550mm. This means the joists (the timber the decking is nailed to) must not be more that 600crs or 550mm between each joist. Pine decking once weathered has a tendancy to show little cracks or splits along the grain. This is a natural and accepted trait of pine. This timber usually comes in two grades. Premium and merchant. Premium is clear with only small tight knots, merchant is a mixture of grades and containes some big knots. PINE H3 90x18 Same as above but can only span up to 350mm, which means the Joists (the timber the decking is nailed to) must not have more than 400mm Crs or 350mm space between each joist. All of the above decking examples usually come with one face smooth, and the other face grooved (grip tread). See Picture below. Other less common profiles are obtainable but not as readily available. It is personal preference as to which side of the timber faces up, however if you plan to spend a lot of time lying or walking barefoot on the deck, grip tread may feel
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
uncomfortable. DECK STRUCTURE EXPLAINED The basic deck consists of Posts either embedded in concrete or bolted to appropriate metal post brackets embedded in concrete. Bearers, which either sit on top of, or are bolted to the side of the posts. Stringer, ledger plate or bearer plate, bolted or fixed to existing house. Joists, fixed to the ledger plate and on top of the bearers.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/27/2009 for the course ENGR 23432 taught by Professor Puliyambath during the Spring '09 term at Punjab Engineering College.

Page1 / 10

All about decking - Decks Decks are a common addition to...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online