#HAWAII STAIR RAIL CODE HOW TO#
#HAWAII STAIR RAIL CODE CODE#

This figure (12 1/2 inches) added to the desired headroom height of 80 inches will total 92 1/2 inches.

For the purpose of our example we will calculate the upper-floor construction to be a total thickness of 12 1/2 inches. This is a two-step calculation.ДЇirst, account for the required headroom and the upper-floor construction, including floor-joist height, floor thickness and drywall thickness. Next, calculate the length of the stairwell, or the width of the upper floorвЂ™s vertical shaft in which the stairs are located. To determine the actual total length of the stair, you must add the nosing of the bottom step and the thickness of the top riser.Д®xample: Total tread run 150вЂќ + 1 1/4вЂќ nosing + 3/4вЂќ top riser = 152вЂќ total stair length The run of the stair will then be 15 treads at 10 inches per tread, or 150 inches of total run. Knowing the number of risers tells you the number of treads - 15 (the sixteenth riser will be positioned approaching the upper floor with no tread on top).

Total rise 118вЂќ/16 risers = 7 3/8вЂќ each rise Then divide that number into the total finish rise.Д®xample:Total rise 118вЂќ/ 7.5 = 15.73 - round up the total number of risers to 16 The resulting number equals the number of risers. ДЄssuming the distance from one finished floor to the other (total rise) measures 118 inches, find out the number of risers needed by dividing the total finish rise by 7.5. For this example the nosing will be a standard 1 1/4 inch, the tread run will be 10 inches each, and the headroom will be 6 feet, 8 inches. There is nothing worse than having some common stair-building sense knocked into you by bumping your head. Many a stair has been torn out due to incorrect calculation of this item before the stair is built and installed. Headroom is very important you need to be able to ascend and descend the stair safely.

#HAWAII STAIR RAIL CODE CODE#

This code states that you may have a maximum riser height of 7 3/4 inches and tread run of no less than 10 inches.ДЄrke stairs has spiral and modular stair kits for the do-it-yourselfer.ДЇirst determine the size of your stairwell, making sure to allow for the proper headroom to accommodate the stairs. The building code that we are implementing for this project is BOCA 96 for residential use. Grab a pencil and commit your plans to paper, sketching a rough blueprint of your staircase.ДЇor the purpose of this example, this project will be a straight stair. Most lumberyards carry stock used specifically for the construction of stairs.ДЄfter you have determined the proper codes to follow for your municipality, you are ready to begin the layout and calculations of your stair. When you use a lower grade of material that contains knots and voids, the stair may encounter cracking at a later date. Do not mistakenly think that because the material will be covered with carpet and no one will see it, the quality of construction materials doesnвЂ™t matter it does. Remember, the construction materials that you use will dictate the outcome of your finished product, and quality materials will produce a quality job. Some municipalities have stricter codes than others, and checking first will eliminate the need to rebuild later.ДЄfter determining the correct code requirements for your stair, consider the stairвЂ™s design aspects. Before beginning construction, you should consult not only the national building-code requirements, but also the local building-code requirements. Extreme accuracy must be used for a safe design. WhenВ building a stair, functionality is the most important consideration. And simple wall-mounted railing is a popular option to complete either type of stair. This type of fabrication is less expensive and allows the stair to be covered with carpet.ДЄ carpenter-built stair can be dressed up with a hardwood or paint-grade skirt board. The second class, a carpenter-built stair, is just that - a stair built on site by a carpenter.

The first class is a mill-made stair, which is usually fabricated in a mill shop and shipped to the job site as a kit, ready for assembly and installation. There are two different classes of stairs.

#HAWAII STAIR RAIL CODE HOW TO#

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Hawaii stair rail code