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STAIRS
TERMS
| Question | Answer |
|---|---|
| BALUSTER | A supporting column or member; a support or a railing, part balustrade. |
| BALUSTRADE | A stair rail assembly consisting of a handrail, balusters, and posts. |
| CLOSED STAIRWAY | A stairway that has solid walls on each side. |
| GEOMETRICAL STAIRWAY | A winding stairway builit around a well. Examples include circular, elliptical, and spiral stairs. |
| GUARDRAIL | A rail secured to uprights and erected along the exposed sides and ends of plateform strairs, etc. |
| HANDRAIL | A member supported on brackets from a wall or a partition to furnish a handhold. |
| HEADROOM | The vertical and clear space in height between stair tread and the ceiling or the stairs above. |
| HOUSED STRINGER | A stair stringer with horizontal and vertical grooves cut (mortised) on the inside to receive the ends of the risers and treads. (Wedges covered with glue are often used to hold the risers and treadss in place, in the grooves. |
| LANDING | A horizontal area at the end of a flight of staires or between two flights of stairs. |
| NEWEL POST | An upright post supporting the handrail at the top and the bottom of a stairway, or at the turn of a landing. Also, the main post about which a circular staircase winds or a ston column carrying the inner ends of thet treads of a spiral ston staircase. |
| NOSING | The portion of the stair tread that extends beyond the face of the riser. |
| OPEN STAIRWAY | A stairway that is open on at least one side. |
| PITCH BOARD | A board that serves as a pattern for making cuts for stairs. The shortest side is the height is the height of the riser cut, and the next longer side is the width of the tread. This is used mainly when there is a great repetition such as in production hou |
| RISE | The vertical dimension of a set of stairs. Also called the total rise. |
| RISE AND RUN | A term used to indicate the degree of incline. |
| RISE | A vertical board under thre tread of a stair step; in other words, a board set on edge for connecting the treads of a stairway. |
| RUN | The horizontal distance from thre face of the first or upper riser to the face of the last or lower riser. Also called the TOTAL RUN. |
| SKIRTBOARD | A baseboard or finishing board at the junction of the interior wall and the floor. Also called finished stringer. |
| STAIRWELL | A compartment extending vertically through a building into which stairs are placed. |
| STRINGER | The inclined member that supports the treads and the risers of a stairway. |
| TREAD | The horizontal member of a step |
| UNIT RISE | The vertical distance from the face of one riser to the face of the next riser. |
| WINDING STAIRWAY | A type of geometrical staircase that changes direction by means of winders , or a landing and winders. The stair opening is relatively wide, and the balustrade follows the curve with only a newel post at the bottom |
| DADOES | A dado, housing or trench is a slot or trench cut into the surface of a piece of machinable material, usually wood. When viewed in cross-section, a dado has three sides. A dado is cut across, or perpendicular to, the grain. |
| HOUSED STRINGER | A staircase string whose upper edge is straight and parallel to its lower edge; the tread and riser ends are housed in face of the string and are concealed. |
| STAIRWAY BLOCKING | The blocking behind the stairs is a traditional way of reducing the tendency of the stairs to squeak. They are usually glued and screwed on. but mostly they are found on stairs with thinner treads and risers, and made of softer woods rather than hard wood |
| CARRIAGE | An inclined beam which supports the steps or adds support between the strings of a wooden staircase, usually between the wall and outer string. Also called a carriage piece, horse, roughstring |
| NOSING RETURN | On stairway with a open stringer, a nosing return (end nosing) is the projection over the face of the tread at the end of the tread. |
| SPINDLE | Same a baluster. The upright piece the runs between the handrail and the tread. |
| OPEN FINISHED STRINGER | An open finished stringer is a finished piece cut to match th stair stringer supporting the stair treads. |
| CLOSED FINISHED STRINGER | A closed finished stringer is finished piece fastened to the stair stringer. A housed stringer supporting the tread may be used instead of a closed stringer. |
| STARTING NEWEL POST | A starting newel post is the main post supporting a handrail or guardrail at the bottom of the stairways. |
| LANDING NEWEL POST | A landing newel post is the main post supporting the handrail (guardrail) at the landing. |
| ENDING NEWEL POST | The ending newel post, if used, is the uppermost supporting post for the handrail, or guardrail Sometimes no newel post or only half of a newel post is used. |
| STANDARD HEADROOM CLEARANCE | 6 feet 6 inches for residential stairs and 6feet 8 inches for commercial stairs. However, 7 feet (if at all possible) is desirable. |
| STRINGER SELECTION AND CONSTRUCTION | All stringers should be constructed in accordance with the local building codes. The size of the stringer material will be found in the construction drawings. All materials used for stringers should be selected at one time and the crowns should be matched |
| TREAD AND RISER FRAMING REQUIREMENTS | For optimum safety and comfort, it is important that the dimension of a stair tread and riser be uniform within any stairway. (codebycode) standard min 36" to 44" |
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