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Build A Deck - Fine Homebuilding

May is Deck Safety Month – Check Your Deck!

By Mike Guertin
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15 year old deck looks fine from afar, but closer inspection reveals numerous safety issues.

May is ‘Deck Safety Month’.  Last month when clocks shifted to daylight savings time you changed out the batteries in your smoke detectors (right?) so this month it’s time to check – your – deck.  Decks on the verge of falling down generally don’t look any different than safe decks.  You have to take a close look in order to see if problems exist. And don’t take deck safety lightly; injuries sustained from a deck collapse can range from scraps and bruises to loss of limb or life.

Your deck may seem solid and secure until one day it falls off the house.  Deck collapses are more common than you may think.  In early April five people were injured in a New Jersey deck collapse. In mid-April another deck failure near Syracuse, NY hospitalized five and injured several others.  Even my tiny state of Rhode Island had a deck collapse the week before last from a condo injuring two.  And I’d guess that many near-trageties go unreported.

I inspected a 15 year old deck in March.  From 30 ft. away it looked fine but when I got closer it was easy to see numerous deficiencies and outright negligent workmanship (see photos).  The deck could hang on the house for another 15 years without failing – or it could fall down tomorrow.  If the deck was 1 ft. or 2 ft. off the ground it would have been less of a concern but this one is about 10 ft. high.

It’s amazing how many decks fail each year.  According to NADRA (North American Deck & Railing Association), between 2000 and 2008, there were 30 reported deaths resulting from deck failures.  And many thousands of people landed in emergency rooms due to deck, railing or deck stair failures annually.

The warm spring has many of us enjoying our decks earlier than usual.  Before we get too deep into the spring and summer, take 30 minutes to inspect your deck.

deck-safety-interactive-graphic.jpg

 

For further information on conducting a deck inspection yourself, check out this interactive deck safety graphic.

There are dozens of individual inspection points on a deck and some aren’t easy to see.  If you are concerned, have a contactor who specializes in decks do the inspection.  Contractor members of NADRA generally follow a deck evaluation checklist developed by the organization.  And NADRAs consumer checklist describes both deck inspection points and general deck safety considerations.

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  1. milwaukee | May 02, 2012 06:15am | #1

    This deck makes me sick. It should NOT be fixed but destroyed. i build the best decks humanly possible and it pains me when people think they can FIX a deck like the ones in the above photos. If money is a concern about ripping it down to rebuild it, then just rip it down so no one dies, and when money is available hire Mike and build it better.

    peace.

  2. MikeGuertin | May 03, 2012 09:56am | #2

    I agree with Milwaukee that in some instances it is better to replace a deck that has many problems than to repair it. I did a quick cost analysis on this project and determined we can make effective repairs that will make this deck as secure as a newly built one.
    In a couple weeks we're going to fix the deck. I figure it will take me 3 days and about $200 in materials.

    Here's a list of the major work items:
    1 Add a second layer to the outer rim joist to make it an effective rim beam.
    2 Install 4x4 posts beneath the rim beam.
    3 Replace the joist hangers (since there aren't many nails in the current hangers - that will be fast work)
    4 Secure the ledger with additional structural screws.
    5 Install hardware to secure the stringers to the head board.
    6 Install 2x4 jacks beneath the stringer head board
    7 Install self-adhering membrane over the wall sheathing and the ledger - then cap it with a substantial drip cap flashing.
    8 Check the footings for depth and size.
    9 Install two lateral load tension tie assemblies to tie the deck joists to the house joists.

    It sounds like a lot but several items can go fast.

    There are other factors that tip the scale towards repair in this case. Every situation needs to be evaluated on the conditions at hand.

  3. deckingperth | Jun 26, 2012 05:52am | #3

    I agree with milwaukee that instead of fixing old deck you should replace it with new but you should also be aware when to replace old one.

  4. Los_Angeles_Decking | Sep 12, 2014 03:11pm | #4

    Ensuring that your deck is properly maintained is often necessary, I suggest you hire a decking contractor such as westside company is you live in Los Angeles, California.
    http://www.westsidecompany.net

  5. prestige_decking | Feb 17, 2015 03:53pm | #5

    Thanks Mike, this is really helpful. We work mainly with impervious deck coating membranes, but often we repair structural damage because of lack of attention to signs of rot. prestigedecking.com

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