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Building a Deck Continued. Decking. Traditionally 2x4 or 2x6 decking material has been used as deck boards Now composite materials are more prevalent No deck board wider than 6” shall be used to prevent cupping The thickness of the deck board determines the allowable distance between joists.
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Decking • Traditionally 2x4 or 2x6 decking material has been used as deck boards • Now composite materials are more prevalent • No deck board wider than 6” shall be used to prevent cupping • The thickness of the deck board determines the allowable distance between joists
Stairways • Must have a minimum of 3 ft. net clear width • Minimum tread distance = 9” • Maximum Riser height = 8 ¼” • All steps must be consistent to within 3/8” • Riser openings shall not permit passage of a sphere 4” or larger • Stairs must be solidly attached to main deck or stair landing and rest firmly on ground • Stringer spacing depends upon decking material
Building Stringers • Stringers are cut from the same material used for floor joists
How do I build the Stringers on my deck?? • First measure the distance from the top of the area where stairs will be to the ground • Then measure the distance out from the deck that you want your stairs to be • Put the two measurements together to create a rectangle/square on a piece of graph paper • Lay one of our 2x10 from the lumber yard inside the top corner (where the deck is) to the bottom outside corner where the ground is and trace the board • Then use the graph paper to help you figure measurements to get as close to possible equal stairs and draw them out using a ruler • Cut this out, trace on other 2x10s, cut stringers, glue
Handrails • Shall be between 34” to 38” high from tread nosing • Must continue the full length of the stairs
Guardrails • Guardrails shall be no less than 36” high • For any deck, porch, etc… that is 30” off the ground or higher guardrails must be installed • Horizontal spacing between vertical members in rails must be at least 4” (1/4” at our scale) • Decorative rails and other openings shall not allow a 6” sphere to pass through
How to build guardrails? • Place posts a maximum of 3” apart from one another attached to the outside of the deck • Attach railtops from one post to the next with all splices falling over top posts • Run rail bottoms in between posts ¼” off of decking • Install pickets in any way with no openings large than ½”