DECKS

We frequently receive requests on the web site asking us for details for the attachment of decks to structures. We actually prefer to see decks independently supported and attached to houses for stability only. Some jurisdictions require independent support, but all require through-bolting of the perimeter joists at a minimum. The following detail (sketch-1) shows a generally accepted method of attachment for decks to shed water as well as providing ventilation to thwart rotting of house parts. Additionally we include a detail (sketch-2) depicting a method of installing wood posts to prevent rotting. Posts sometimes require angle braces or cross braces to meet local codes. IN UTILIZING EITHER OF THESE SKETCHES, BE SURE TO CONTACT YOUR LOCAL BUILDING OFFICIALS AND GAIN THEIR APPROVAL BEFORE THE WORK IS DONE.  Building departments and inspectors are a valuable resource!!!  Cultivate the ones in your area and you'll go a long way to avoiding heartache at the hands of an ill informed or inattentive contractor.  Another little helpful tidbit ... footings need to be bullet proof in terms of smoothness on the sides as well as depth to avoid the damaging effects of freezing soil on structural integrity, i.e., if freezing causes your footings to "heave" because the sides of the footings or lack of depth don't preclude this result, yo' structure will suffer.  Height of handrail, the lateral load it well support and spacing of pickets are also concerns your contractor should address in detail.  All that said, Gwinnett County publishes spec's for decks that are as good as you're gon'na find in our opinion.  You can access those puppies at: www.co.gwinnett.ga.us/departments/planning/pdf/decking_details.pdf