Calculate
RCC slab calculator chhat ki concrete ka andaza deta hai, magar ghar ke takeoff mein stairs, columns aur beam intersections bhi shamil hain. Koi hissa reh jaye ya do baar count ho to order ghalat ho sakta hai. Is guide mein har item ki alag measurement, CFT aur cubic metres ka talluq, aur PSI aur MPa ka matlab samjhaya gaya hai. Pakistan mein 5 marla house, DHA aur Bahria Town ke budget ki misaalein bhi isi context mein hain. Maqsad approved drawing se quantity nikalna hai, plot ke naam se safe thickness ya sariya tay karna nahin. Asal dimensions, concrete performance aur reinforcement hamesha structural documents se lein.
Note: Yeh Roman Urdu blog hai; calculator links filhal English interface kholte hain.
Roof slab ki concrete volume
Farz karein net area 900 sq ft aur drawing ki thickness 6 inch hai. 900 × 6 ÷ 12 = 450 CFT, taqreeban 12.743 m³ ya 16.667 yd³. Yeh 5 marla ghar ka lazmi covered area ya standard slab thickness nahin.
Stair opening aur shafts drawing se minus karein. Agar beam ka upper portion slab mein count hai to sirf baqi downstand volume add karein. Volume tool ke baad RCC slab material tool kholein.
Cement, rait aur bajri ki hal shuda misaal
450 CFT, dry factor 1.54, nominal mix 1:2:4 aur bag volume 1.25 CFT se dry volume 693 CFT banta hai.
| Material | Hisaab | Base quantity |
|---|---|---|
| Cement | 693 ÷ 7 ÷ 1.25 | 79.2 boriyan |
| Rait | 693 × 2 ÷ 7 | 198 CFT |
| Bajri | 693 × 4 ÷ 7 | 396 CFT |
Yeh assumptions strength approval nahin. Bag size aur har allowance alag check karein. Ready-mix order par dry factor nahin lagta. Tafseel concrete material guide mein hai.
RCC staircase concrete kaise nikalein?
- Waist slab: width × sloping length × slope ke perpendicular thickness.
- Triangular steps: tread count × ½ × going × rise × width.
- Landing: length × width × thickness.
3.5 × 12 × 0.5 ft waist slab 21 CFT hai. Das triangular parts, going 0.9 ft aur rise 0.5 ft ke saath, 7.875 CFT hain. Alag 3.5 × 4 × 0.5 ft landing 7 CFT hai. Total 35.875 CFT.
Yeh component arithmetic hai, aik coordinated staircase design ya safe tread, riser aur headroom recommendation nahin. Asal geometry, supports aur overlaps check karein. Staircase tool measured volume leta hai; drawing khud nahin parhta.
House columns aur garage columns
Rectangular column volume = width × depth × height. Chaar farzi columns, 12 × 18 inch aur 10 ft high, 4 × 1 × 1.5 × 10 = 60 CFT hain. Yeh column size ki recommendation nahin.
Column calculator se pehle pour limits dekhein. Garage ki bari opening structural arrangement badal sakti hai. Quantity ke hisaab se column remove ya chhota na karein.
DHA house steel aur 1 kanal house ka budget
“DHA house steel quantity”, “5 marla concrete slab” aur “1 kanal house DHA” jaise searches budget ke liye hain, magar plot area steel tonnage tay nahin karta. DHA Lahore, DHA Islamabad aur Bahria Town mein bhi spans, storeys, loads, soil aur seismic design project ke mutabiq hote hain.
Steel quantity tool preliminary estimate hai. Purchase approved bar schedule se karein, jis mein laps, anchorage aur bends hon. Society ka naam universal steel ratio nahin banata.
Slab ke liye kitni PSI achhi hai?
Har slab ke liye aik PSI standard munasib nahin. Sirf unit conversion samjhein: 3000 PSI taqreeban 20.7 MPa, 3500 taqreeban 24.1, 4000 taqreeban 27.6 aur 5000 taqreeban 34.5 MPa hai. Yeh recommended grades nahin.
Specified strength, test age, specimen aur exposure drawing se lein. Cube aur cylinder results sirf unit badalne se equal nahin hote. 1:2:4 lazman 3000 PSI nahin deta, aur high strength ghalat steel detailing ko durust nahin karti.
American aur mulki construction references
Pakistan mein applicable Building Code of Pakistan aur approving authority ke requirements check karein. US mein ACI 318 structure, ACI 301 construction specifications aur relevant ASTM materials aur tests ke references hain. Latest edition khud-ba-khud har project par apply nahin hota.
Eurocode 2 concrete structures ke liye hai. France ke national provisions aur NF EN 206 national complement, aur Italy ka NTC framework applicable editions ke saath dekhein.
Sweden ki Boverket ke mutabiq transition mein old rules choose karne ka option 1 July 2026 ko khatam hua; project ki transition position verify karein. Saudi Arabia mein SBC 304 concrete structures ke liye hai. Arabic zaban ka matlab tamam countries ka aik code nahin.
Aam sawalat
Kya 5 marla plot se slab quantity mil jati hai?
Nahin. Actual slab area, thickness, openings aur beams chahiye.
Kya garage column ke liye 3000 PSI kafi hai?
Design, loads, exposure aur applicable requirements ke baghair faisla nahin ho sakta.
Kya stairs ka floor area kafi hai?
Nahin. Sloping waist, steps aur landings alag measure karein.
Kya same area ke gharon ka sariya equal hoga?
Zaroori nahin; structural system aur site conditions farq ho sakti hain.
Agli pour ka estimate banayein
Slab, stairs aur columns alag rakhein. Assumptions saath likhein aur safe design responsible engineer se approve karwayein.