Hi,
I am in the process of setting up a small container garden (for fruits and vegetables) on my back patio. The containers I will be using are self-watering containers and they must be level to work as intended. The problem is, my patio is not level (it's slightly sloped for drainage).
So I was thinking about building a small, level deck which would be sitting directly on top of the patio slab. The deck would be very low, probably no more than just a few inches off the slab. I would like the deck to be about 8' x 8'. The deck has to be able to support a load of about 700lbs.
I am used to building furniture but not structural things like a deck, so I need some advice from the experts.
I wanted to use pressure treated lumber (I do not want to either paint or stain the deck). I would use 2x8s for the frame, 4x4s for the (short) legs and 1x6s for the actually decking. Does that sound reasonable?
The frame would be built as shown on picture 1. I was thinking about using butt joints to join the 2x8s (using 3-4 wood screws per joint). It that OK or should I reinforce the joints using other types of fasteners? Other question: how much space should I leave between the joists? 16, 18, 24"? Also, should I use cross-braces between the joists?
For the decking itself, what space should I leave between adjacent 1x6s? 1/4", 1/2"?
And finally, should I secure the deck to the slab? I was thinking that, since it's gonna be sitting very low to the ground, it wouldn't be necessary to anchor it...
I am in the process of setting up a small container garden (for fruits and vegetables) on my back patio. The containers I will be using are self-watering containers and they must be level to work as intended. The problem is, my patio is not level (it's slightly sloped for drainage).
So I was thinking about building a small, level deck which would be sitting directly on top of the patio slab. The deck would be very low, probably no more than just a few inches off the slab. I would like the deck to be about 8' x 8'. The deck has to be able to support a load of about 700lbs.
I am used to building furniture but not structural things like a deck, so I need some advice from the experts.
I wanted to use pressure treated lumber (I do not want to either paint or stain the deck). I would use 2x8s for the frame, 4x4s for the (short) legs and 1x6s for the actually decking. Does that sound reasonable?
The frame would be built as shown on picture 1. I was thinking about using butt joints to join the 2x8s (using 3-4 wood screws per joint). It that OK or should I reinforce the joints using other types of fasteners? Other question: how much space should I leave between the joists? 16, 18, 24"? Also, should I use cross-braces between the joists?
For the decking itself, what space should I leave between adjacent 1x6s? 1/4", 1/2"?
And finally, should I secure the deck to the slab? I was thinking that, since it's gonna be sitting very low to the ground, it wouldn't be necessary to anchor it...
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