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Tanalised treated decking and joist timber is used throughout,
giving a lifespan of at least 15 years with no decay or rot. It is important
that all cuts and drill holes are treated with a good exterior decking or timber
preserver. Larger cuts should be treated with a proper 'end seal'. The decking
joists seen here are 6x2in - 150 x 50mm - and are the minimum requirement for a
raised deck. Smaller joist timbers should not be used for raised decks. The
spacing of the deck joists is 600mm, with a load bearing span over bearers of
1.5m maximum.
What was there and how we altered it! The deck was raised approx 1.8m from
the old ground level, giving a huge increase in the amount of useable space.
Without the deck, it would have been necessary to build a staircase down into
the garden - instead of which, the decking bought the garden up to the level of
the house.
Some progress images on the decking that can be clicked for enlargement.
The Wall plate - or ledger board - is
fastened to the wall using M12mm wall bolts. In this case Sleeve Anchors
were used. The distances between the fastenings is 1.2m. A good strong
wall is ok for these distances, but a weaker or poorly constructed wall
would mean 600mm spacings between deck decking joists.
Decking Staircase well underway >>>>
Balustrades underway before last section of deck completed -
for which, some dry weather is needed!
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