Good bit of activity over the past couple of days, all dug out around 10" depth and hardcore started to go in at end of daylight today. God, i love machinery!
Well,
I've changed my mind again and decided to go for a softwood deck(correct me if i am wrong but is that not what most people on here go for)? .
My plan is for the deck to be 5m wide and 6m long. The 6m length will be projecting down the garden and encompass the pergola/tub area at the top end of the deck. After reading a bit on this and other sites i have came up with a plan. The deck is going to be single level and i'd like it to be as low as possible as it will be stepped onto directly from the patio to access the tub.
For foundations i plan to use 6" square posts cut down to 2' lengths, first thing will be the cut down posts soaking in a bucket of timber preserver for a couple of hours to allow the preserver to penetrate into the cut sections. I will then sink the posts approx 14" into the soil. The post holes will be belled out at the bottom to give a good anchor.A small layer of gravel will be put into each post hole to minimise post bottom contacting with earth.I planned on having the posts 1.5M seperation in any direction and expect to use about 20 to 25kgs of concrete per hole.
My frame joists would be 4"x2" and i was planning on them being set at 500mm centres with cross bracing dwangs same timber size at 1M centres.
My intention is to have the whole deck float on the 6" posts about 1" off ground. I will be putting down a weed membrane and holding it in place with gravel and plastic pins out round the edge.
To ensure i get 1" clearance off the ground(thinking air circulation) i will be sinking the outer frame posts first, building that frame and working my way in to the centre framing and posting as i go depending on circumstance. I will be leaving a couple of inches of excess height in the posts to allow for the required fall of the deck to ensure the rain runs off it. I also plan to rebate the posts and coachbolt the joists in place, this should give it some serious support!
Finally on the frame, once the frame is in place and post tops cut to flush i will be giving it a couple of coats of wood treatment on top of its exisitng treatment.
After that its decking time, the deck itself is 42mm thick direction will be from the pergola down the garden, stainless screws,straight lines and 4/5mm gaps are the order of the day?
The rests easy its just finishing details but i'd like any advice on glaring ommisions i may have made in my timber sizes, post spacings or foundation depths/shape. Same goes for any 'best product out there' timber treatments, deck oils or weed membranes.
Any advice much appreciated.
Slight hiccup on the tub order as a 50hz switch set is no longer available. Still i am almost there with the specification so hopefully order in April for delivery around July.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local