Denise and I moved into our house over five years ago, and we've been saying since we moved in that we wanted to build a deck. Of course, time is a factor, and our family has grown from two to five, which doesn't help. Nevertheless, I set out this spring with plans to actually build it this year, hopefully before the heart of summer.
Last month, after the
Transportation and Trails Committee meeting, I went down to
Building Standards and asked for some information about building a deck. They gave me a nice little booklet of information (it really is quite useful!) and a building permit application. I also have a book on decks that I received from my parents several years ago.
For those who have seen my backyard, you know that the patio is pathetic. It's pretty small, has grass growing between the stones, and before this year the steps from the back door were rickety. This spring, the steps finally rotted enough to fall away from the house completely, so there is a 2-3 foot step down from the back door to the patio. Basically useless. So there is some urgency to either (a) build the deck (wife approved solution), or (b) build new steps down to the existing patio (wife
unapproved solution). Naturally, (a) is the goal.
When we first were looking at how to build a deck, the first thought was to build below the siding, where the concrete ends. It seemed like a good idea, but it means we still need steps down from the door, and the low profile is an issue in the corner near the house since the ground rises quite a bit at one point. So it's got to be higher than that. Besides, there isn't really much difference between such a low deck and just rebuilding the patio. The view would be nicer from higher up. So that leaves us with building it up by the door or building somewhere in between. I consulted my deck book.
Seeing how the deck is going to be off the ground, and given my general unease about cutting siding and otherwise
damaging altering the house, I thought a freestanding deck would be perfect. The book recommended excavating at least three feet from the foundation due to the general consistency of backfill (i.e. crap), which seemed like sound advice. The deck plan had a cantilever of three feet which seemed like enough. Because of obstacles, I also thought that building about six inches below door level would be preferable as well, and a box step down from there. The dimensions worked out to 14'x14' or 16'x14', and the latter won out because the tradeoff seemed to favour a bit more deck space and a bit less yard. Anyway, it was all coming together in my head and it was time to go to paper.
To recap, I had a deck in mind which was freestanding, six inches below door level, 14'x16', with a couple of steps down. The beams would be cantilevered three feet on either end. Because it would be over two feet above grade in spots, a railing was also in order. Perfect. I went to put the plans on paper, figure out where to dig holes, the dimensions of my wood, and everything else.
Then I noticed something.
That pamphlet of information from the city had maximum and minimum requirements for several dimensions. I didn't notice them originally, because I didn't know how to read the plans. However, after having worked through my own, I was able to recognize it. The maximum cantilever is two feet. That's one foot less than my plan calls for. So now I have a problem. In order to have a cantilever of two feet, I would need to dig holes centered two feet from the house. I thought that maybe I was reading it wrong, or maybe it didn't apply to me, or maybe that if I just used other materials, or maybe ... I wrote an e-mail to the city and got back the reply that I wasn't hoping for:
We permit a maximum of 2 feet of cantilever as prescribed by the Ontario Building Code. In past cases where we have permitted greater cantilevers, the decks were often very bouncy, and the people were not happy with them.
Furthermore:
As you have mentioned, we do not like to see post holes dug near the existing foundation. Often the soil at the foundation wall consists mostly of backfilled or un compacted material, and often slippage occurs, so placing the post holes near the house is often more trouble than its worth.
And, the coup de grace:
We always recommend bolting a ledger board to the house frame, and using joist hangers from there.
Crap. So now I'm back to the drawing board. Since I need to attach the ledger board to a floor joist, it probably means raising the deck up those six inches or so, which means I'm going to need an extra step, and I'm also going to have to build around more obstacles, and ...
I just wish I had been able to read the sample plan before I drew up my own. Well, that's why you invest time in planning before you start to build.