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Deck Handrails

Video, Carpentry, Decks and Patios, Safety and Security Published 08/23/2007 by Ben Erickson


To give a deck that perfect finishing touch, as well as to address safety concerns, it needs to have a handrail around it. Here Danny shows how to construct the railings and spindles from pressure treated wood. The top rail is made from a horizontal 2×4 while the bottom rail is secured vertically with a beveled cut to shed water. 2×2 spindles are toe nailed into the rails before the whole unit is set in place. The top rail is then capped with a piece of 5/4” material to finish it off. Be sure and check your local building codes for approved heights as well as for the gap allowed between the spindles.


3 Comments to “Deck Handrails”

  1. James Tyson III Says:
    October 7th, 2007 at 7:47 am

    I have a ? for you Danny. I watch your shows alot and I love them. Their really helpful to me because I’m a do-it-yourselfer myself. My ? is how hard is it to add a ledger to brick for a deck? Again, I love your shows and please keep them coming. Thanks alot.

  2. cathy saffell Says:
    June 20th, 2008 at 5:47 am

    Some one is building a deck for us. The handrails are yet to be built. The carpenter was planning to split treated 2×4’s for the spindles. My husband is afraid that they will warp so he told him to use the full 2×4. It does not look as good. Will the split 2×4’s work good? Also, after viewing your video section, I understood that the 2×4 at the bottom of the rail should be vertical and the top one should be horizontal. Was the 2×2 spindle centered between each 2×4. And, is it necessary to round the edges of the spindles to make them look nicer?
    Thank you very much,
    I enjoy your show very much when I get a chance to watch.
    Cathy Saffell

  3. Official Comment:

    Ben Erickson Says:
    June 20th, 2008 at 11:30 am

    Hi Cathy,
    You’re right, 2×2 spindles look much less cluttered and use half the material of 2×4s. Anytime you rip wood, there’s a chance it will bow due to internal stresses and uneven moisture content. This is particularly true of pressure treated pine, since it’s not the most stable wood and usually comes still wet with preservative. I would rip them, cut them to length, and stack them out of direct sunlight for a few weeks before installing to allow them to acclimatize. Alternate the direction of each layer in the stack and leave a gap between each spindle so air can circulate, then discard any warped ones before installing. You can either round the edges or not, but since the 2×4 edges will probably already be slightly rounded, it would look best if the cut edges matched. Use a router or shaper with a round over bit to mold the edges. A better—but more expensive option—is to buy treated 2×2s that are made for use as spindles. The reason for a vertical bottom rail and horizontal top rail is that it allows the bottom rail to provide support against sagging while the top rail resists sideways movement. The spindles are centered over both rails.


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