Back Deck

[DennisFolsom]

Dennis I don't know if you are subject to permits and inspections where you are so this may not matter. Where I am after a few decks collapsed with large groups of people on them the inspectors got real picky about using screws on joist hangers. Screws don't have the shear strength that joist hanger nails have so that is their issue. I think there are some screws now that are rated for hangers but I have never used them. Personally I don't think you have a problem but I thought I would mention it in case it applied in your situation.

MarkV

I am using Simpson's "Structural" screws, so I think I'm OK. On one pair of the "toenail" holes in each joist hanger, I'm using the larger #10 x 2.5" galvanized screws. For the rest of the holes, I'm using #9 x 1.5" galvanized screws. On my deck, being so low to the ground, with no posts under it (beam sits right on the piers), I can't imagine there being a substantial lateral load to pull the deck away from the house.

I'm cantilevering a little over a foot out over the beam on the 8 ft wide part, and about 2 ft over the beam on the 12 ft wide part. I believe the screws I'm using will be more than adequate to prevent the josts from pulling up out of the hangers, if it ever got too much load out on the cantilever portion.

Also, I'm not subject to an inspection on the deck here. I got the building permit for it as a part of my house building permit.

 

[DennisFolsom]

If I understand your problem correctly would it not be better to shorten the deck to 40' and patch the 3 inch gap on the house siding than to fix it by extending every piece of decking?

Thanks for the thought. I considered and almost did pick that option. However, it has worked out so I made it on the ledgerboard with a 16' and two 12' pieces.

I did make the beam for the wider section out of 14' lumber. I put it in place uncut, with some excess to trim on each end.

I have it worked out so that I can use two 12' and a 16' piece of decking, as I will run a "picture frame" treatment around the end, which will take up the excess length.

I will most likely need to pick up a 14' piece of 2x8 for the rim joist on the wider section. I haven't bought that one yet, because I thought I would verify my length first.

 

[DennisFolsom]

Joists are now done!

I got the last of the joists installed today, and I put bridging/blocking in the wider section. Here are a couple of photos, showing what the deck looks like at this stage.

Next, I have to recheck my calculations of how the decking will come out, in order to determine the lengths to trim my joists in the two sections. I figured this once, but I want to make sure I get it right.

I also need to install the drain pipe for the downspout connection, and frame the hatch for the dryer vent access.

I'll be making the order for the decking either Saturday morning, or early next week.

 

[Dutch445]

Nice project,
is the dryer vent going to be exhausting under the deck? I see you are going to make it accessible,
but it looks like the decking/hatch will totally cover the area above the vent.
just curious, i have a similar situation preventing me from expanding a deck.(or so i thought)

 

[DennisFolsom]

Nice project,
is the dryer vent going to be exhausting under the deck? I see you are going to make it accessible,
but it looks like the decking/hatch will totally cover the area above the vent.
just curious, i have a similar situation preventing me from expanding a deck.(or so i thought)

Yes - the dryer vent will exhaust under the deck.

Following advice from one of my DIY books, I will put 2x4 cleats on the framing around my hatch opening (approx 1' x 2'), at an elevation that will allow another 2x4 to rest on top of them. I will make a frame for the hatch cover out of 2x4 and screw decking to it. The hatch will not be hinged. It will just pull out. As the book recommended, I think I will drill a couple of finger holes in the decking to make it easier to pull the hatch cover out.

My scenario is somewhat complicated by the fact that I also plan to run a 4" drain pipe down through one corner of the area that I have boxed out for my hatch. The drain is for a gutter & downspout that I will be having installed. My current idea is that there will be a 4" square notch out of one corner of the hatch cover.

I'll post a photo or two, once I get the drain pipe in and the hatch built.

 

[DennisFolsom]

Over the past weekend, we had rain at times and I had a minor health issue going on. Consequently, I didn't make a lot of progress, but the framing is now essentially done. Tomorrow, I place the order for the decking. Tonight's photos should be the last of the bare frame.

The 3rd photo is a hint of what the deck will look like, though my "picture frame" of square edged pieces will have mitered corners. That will hide the raw edges of the decking material.

 

[tractorshopper]

Great project Dennis. Coming along nicely. I can't help but wonder every time I see a photo including your overhang roof that must be cantilevered somehow because you don't have a post/header combo on the corner. I've never seen it before cantilevered on a slope like that. Really interesting to me. Nice to not have an obstructed view out the back. Good job.

 

[DennisFolsom]

Great project Dennis. Coming along nicely. I can't help but wonder every time I see a photo including your overhang roof that must be cantilevered somehow because you don't have a post/header combo on the corner. I've never seen it before cantilevered on a slope like that. Really interesting to me. Nice to not have an obstructed view out the back. Good job.

That section of the house has roof trusses that cantilever out over the front porch and the back porch/deck as well. There is an "A" shaped section in the center of the trusses that we turned into a storage attic. One of the local truss companies made them for us. I built the front porch 5 years ago. Attached are some photos from 2007 that show the front porch and the front and back of the house.

We got the decking material ordered and delivered today. I worked a bit late and did not get any photos. Maybe tomorrow night.

 

[DennisFolsom]

Getting some Deck Boards on now!

Finally, I'm getting to the fun part! Today, I covered about 1/3 of the 12' x 12' section with decking. Since my last report, I did some of the fussy work, such as adding blocking where the rail posts are going to go, and framing for the hatch to access the dryer vent.

Also, note the photo showing one of the brackets for my bench/rail that will be on two sides. I have 14 of these brackets. I had to notch the outside board for each of them. I thought about drilling holes at the corners of the notches and cutting them out with my saber saw. On other projects, I have had a hard time getting neat cuts that way. So yesterday, I built a template and cut them with my router.. I got very uniform notches that way. It took a little while, but probably no longer than the other method. I'm pleased with the result.

Today, I had to alter my decking layout a bit from what I had planned. I had done the front porch a few years before with the same decking material and the same kind of hidden fasteners. I used that porch deck as a guide to compute the running width of each board. For whatever reason, my gaps between boards are coming out a bit wider. Enough so that I gained about an inch in 4 ft. Consequently, the corner between the two sections of deck (different widths) did not come out as I had carefully calculated. In order to deal with this, I ran a "divider" board transversely, as shown in the last photo. This will allow the joints to run differently on the 8 ft deck section.

In order to make the above change, I had to add to my framing. Every edge and end of the decking material has to be supported.

On Monday, the gutter installers come. I had hoped to have the deck covered by then, but I may not make that. It looks like I will have to work at least a half day tomorrow at my "part time" retirement job. I would rather work on the deck, but I do have some other responsibilities. Besides, It's good to get a pay check.

 

[DennisFolsom]

On Saturday, I got the 12' x 12' section decked. Today, I got 7 courses on the remainder, which is just about 1/3 of the way. My Mrs is enjoying the deck already!

I'm putting screening under the decking in the section that will become the "screened porch." It's under a roof, so the screening shouldn't ****** drainage enough to bother. My 8 year old grandson asked me if I was doing something to keep the bugs from coming up through the cracks in the floor. I had thought of it already, but I was impressed that he thought of that on his own.