But I'm told the Energy Star program is being changed also to be even more efficient (now when that will happen, and will it be called Energy Star anymore, I do not know). The new building code is still not at the same level as what you would get with an Energy Star home, but is getting closer. I do not have access to the new building code (not sure if it is online, I could not find it. To see the original start of this discussion, see įor those interested in the new building code, here is a link that explains some of the energy enhancements. Be sure to check with your building department and follow the decking manufacturer's installation instructions.Note: The original thread was going off topic talking about this, so I thought starting a new one would be better. If 5/4 decking or composite decking is used, they should be 12 inches or closer. If treads are 2-by lumber, stringers can usually be as far apart as 16 inches on center. This spacing depends on the tread materials. Stringers should be spaced close enough to adequately support the treads.Openings in the railing should be no larger than 4 3/8 inches between balusters, and 6 inches between the bottom rail and the tread, as seen in the illustration.The stair railing should include a graspable handrail in most cases.The stair railing posts should be firmly attached to the deck structure or the ground.An open stringer should not have notches that are too deep, or the stringer will be weak.This is pretty strict, so take the time to plan your stringers carefully. The difference between a stair’s longest and shortest riser height or stair depth should be no more than 3/8 inch.For recommendations on rise-run combos, see the tip below. The maximum allowable stair rise is 7 3/4 inches, and the minimum stair rise is 4 inches.Despite these minimum requirements, we recommend that stairs should be at least 48 inches wide so they don’t feel cramped. The stair treads should be at least 36 inches wide.
Now, some common code requirements, along with our recommendations: The total rise is a stairway’s overall change in height, from the landing pad to the top of the deck’s decking. The total run is the overall horizontal distance traveled by the stringer. A stair rise is the vertical distance from the top of one tread to the top of the next tread. Risers are often made of 1-by material, fascia board or decking.Ī stair tread is the width (or depth) of a single stair run. Risers are boards installed on the ends to cover the vertical spaces between the treads. An “open” stringer has notches that you can see, while a “closed” stringer is a solid board with cleats for the treads, or an open stringer with a solid board attached to the side. A stringer is a wide board, usually a 2x12, that runs at an angle from the landing pad to the deck framing and supports the treads. Stair treads may be made of a single 2x12, but are often made of two decking boards or 2圆s. Stair treads are the horizontal boards that you step on. If a stairway will not be used often and the lawn is flat, a landing pad can sometimes be omitted. A landing pad is a flat surface made of concrete, pavers or gravel at the bottom of the steps. Using pre-built stairs will usually not meet code.įirst, you must learn the parts of deck stairs. Also, the stairs and its railing must comply with codes, which are designed to keep it firm and safe. If the bottom or top step is noticeably different in height or length from the other stairs, it will be a tripping hazard. A deck’s stairway should be carefully planned so that all the stair rises (the vertical height of the steps) and all the tread depths (the horizontal length of the step runs) are equal.
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