Thank you again. I appreciate the offer to help. People like you are what’s right in this world.
We got the issue solved luckily. We ordered a new package with a Rona rep who had a better idea of what they were doing.
Quote:
Originally Posted by EZM
sorry just re-read your original post - I agree Rona did not give you the right lumber.
If your ledger attached to the house is 14' and your deck runs 20' into your yard .... here is what you will need .....
2 support beams, each with 3 posts supporting them. Your posts will be a 6x6 pressure treated post. Your support beam will be made up of 3 pcs glued and screwed together of 2x8 or 2x10 dimensional lumber equal to the width of your deck (14') x 2. I'd use 16' pcs as your deck may end up an inch or two wider depending on a number of factors - you can always run the supports long, square up the ends. The cost difference is minor.
Your post, and support beam material list is .....
6 pcs - 6"x6"x8' pressure treat posts (piles must be no less than 48" below grade) You may want to drill deeper and get longer posts.
6 pcs - 2"x8"x16' or 2"x10"x16' to assemble 2 support beams
Your support beams should be fastened to your posts using a post to beam connector. These are the galvanized pcs. found in the lumber section - you can also use saddles.
Joists
On a 20' deck - Using a 12" cantilever off the end, you are spanning 19'. Divide 19' by two rows of support beams, you will have a support beam at 9'-6" and the second at 19'-0" parallel to your ledger on your home.
Your joists will be 2"x8"x12' (or you can use 2x10 to get a stiffer deck) and you will need them to be 16" on centre.
The joists will be fastened to your ledger on your home using joist hangers.
The other end of the 12' joists will rest on the first support beam closest to your house and overhang (or lap) that support beam by about ~24".
Place your next set of joists right beside the first row of joists. There will 12" of overhang (run a line level) on the second support beam (the one 19' out from the house). The end of the joist running back to the first support beam will "overlap" (lay beside) the other joists and run ~24" past this support beam and back to the house.
You should cut and "fill in" the laps on the outside edge of the deck for structural and cosmetic purposes both inside and out.
If you need a drawing PM me and I will make you one.
Good luck.
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