Stair Calculator
Dhizaini a staircase: nhamba yenzira, riser upamhi, kutamba uye stringer urefu kubva kumusoro.
Zvinyorwa zvinogadziridzwa paunenge uchinyora.
Nezve iyi kalkulator
A stair calculator lays out a staircase from the total vertical rise (floor to floor) and the tread run (the horizontal depth of each step). It divides the total rise by a comfortable target riser height — about 7 inches — to find a whole number of risers, then recomputes the exact riser so every step is equal in height, which building codes require. The number of treads is one fewer than the risers (the top riser lands on the upper floor), the total horizontal run is treads × tread depth, and the stringer length is the diagonal √(rise² + run²).
Worked example: a 108-inch floor-to-floor rise divided by a 7-inch target is 15.4, rounded to 15 risers, giving an exact riser of 108 ÷ 15 = 7.2 inches. That means 14 treads; at a 10-inch run the total run is 140 inches and the stringer is √(108² + 140²) ≈ 176.7 inches. The 2R+T check is 2 × 7.2 + 10 = 24.4 inches — right in the comfortable 24–25 inch range.
It flags whether the riser stays within the common code maximum of 7¾ inches and checks the comfort rule, so carpenters and DIY builders can size a stair, cut stringers, and confirm it will pass inspection before cutting timber.
Zvimwe zvinobvunzwa zvakanyanya
Chii chinonzi yakachengeteka riser height?
Zvizhinji zvezvivakwa zvinopa 7¾ inches uye zvinopa 10 inches. Calculator inozivisa kana riser ichibuda kunze kwechimiro chinonakidza, chinoteverwa nekodzero.
Chii chinonzi 2R+T stair rule?
Makore maviri apfuura riser upamhi pamwe nechigaro kutamba anofanira kusanganisira 24-25 inches yegirazi kuti anonzwa zvakajairika kukwira. Steps kuti vashoma kana vashoma kuparadza izvi pamutemo, uye calculator mashoko uko iwe kukunda.
Nei paine imwe chete isingasviki tread kupfuura risers?
Iyo yepamusoro yestaircase inosvika panzvimbo yepasi, saka iyo final riser haina kutambanudza. A staircase with 15 risers has 14 treads.
Ndezvipi zvidimbu zvandinoda kuti ndiwane urefu hwepasi?
Kuparadza kukwira kwese neakanaka riser yeanenge 7 inches uye round kumusoro kune nhamba yakazara. A standard 108-inch (9 ft) kukwira anopa pamusoro 15 risers uye 14 matanda. The calculator wobva waita zvakafanana pamusoro pechokwadi riser upamhi saka hapana chinzvimbo ndechikuru kupfuura vamwe.
Chii chinonzi stringer length uye nei ichikosha?
Stringer ndiyo yakasviba board iyo inovimbisa matanda; iyo hurefu hwayo hunoratidza hurefu hwezvigaro zvese, √(total rise² + total run²).Kuziva izvi kunokuudza kuti ndeipi nguva yakareba iyo board inofanira kutenga uye kuti ndeipi nguva yakareba iyo staircase ichaenda kubva pamuri.
Ndezvipi zviyero zveriser uye tread?
Residential codes zvinonzwika kuti zvinopa 7¾ inch riser uye zvinopa minimum tread depth ye10 inch, nezvose risers 3/8 inch kubva pamwechete. Aim for roughly a 7-inch riser and a 11-inch tread for a comfortable, code-compliant stair.
API — kushandisa iyi kalkulator kubva code
Nhare iyi calculator semahara JSON endpoint - hapana chikuru zvinodiwa. Kutumira nzvimbo mavara pasi separameter query kana JSON. Chii zvachose chaunoisa kunze chinoshandisa default iyo peji iri rakasviba nayo; parameter isiri yechokwadi inonzi 400, uye haisi zero. Tora yakazara API docs →
Endpoint
GET https://calculator.free/api/v1/stair/curl
curl "https://calculator.free/api/v1/stair/?total_rise=108&tread_run=10"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/stair/?" + new URLSearchParams({
"total_rise": "108",
"tread_run": "10"
}));
const data = await r.json();
console.log(data.results);Zviratidzo zvemubvunzo ndezvekufungidzira kwechinangwa chekudzidzisa chete, kwete zvemari, zvehutano kana zvemari.