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What should the design choice of real wood stair notice?
From;    Author:Stand originally

One, from you the decisive dimension of the stair in the home decides how you choose stair:
Mouth size----You choose the size of stair, the modelling of footplate length and width and stair (straight model, l, c, u, s or stair of transition coming back) wait;
Floor height----You choose the size that perpendicular span and center are apart from the footfall of stair, the easy that affects next buildings on you to walk directly is measurable.
Note: Stair floor if the area is too large, be sure to use please go all out point to receive or tine spells makeup technology, in order to because board face suffers greatly,prevent lumber humidity is amiable lukewarm wait for an environment to affect and be out of shape
2, tell you how to choose to design you oneself from the angle that installs stair the stair in the home:
1, the gradient of stair:
Stair gradient is decided really, should consider walk efficiency of comfortable, ascend and dimensional condition element.
Ladder paragraph the couplet route that various footfall leading edge chooses each calls gradient line. The gradient that the included angle of gradient line and horizontal is stair namely (the gradient that the tangent of this one included angle calls stair) . The gradient of indoor stair is 20 degrees commonly - 45 degrees advisable, best gradient is controlled for 30 degrees. The gradient that the stair of special function asks each are not identical. The slope that climbs ladder for example is in 60 degrees of above, special stair takes 45 degrees commonly - 60 degrees, the gradient of step of room inside and outside is 14 degrees - 27 degrees, the gradient of ramp is in 15 degrees normally the following. Say commonly, in stream of people bigger, safe level is higher, or the appropriate of spatial stair slope with ampler area is some gentlier, offer the auxiliary stairs that the small number of people is used or often does not use only, gradient is OK some steeper, but had better not exceed 38 degrees, divide personalized stair or rotate stair.
2, footfall dimension:
The size of footfall is average should suit with photograph of step of person foot dimension, still build medium use function to concern with different type at the same time. The dimension of footfall includes height and width. Of footfall height and width than the gradient that is stair. Footfall is under same gradient is OK have different numerical value, give out an appropriate limits, when with making the person walks, feel comfortable. Carry out a proof, comfortable mark time feels when walking, it is height is lesser and width is bigger commonly. Because this is when choice aspect ratio, two kinds of dimension to same gradient with height lesser person advisable, because walk when than height and width great mark time wants save effort some. But should notice width also cannot pass small, with not be less than 240mm advisable, the exert oneself that can assure a foot so nods centre of gravity to fall around arch, make dot of calcaneal exert oneself has 90% to be on footfall. With respect to the adult character, the smallest width of stair footfall should be 240mm, comfortable width should be 280-300mm left and right sides.
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