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About Us | ConcreteMetric.com Australia 2026
🇦🇺 Australia's Concrete Authority — 2026

About Us

AS 3600 concrete calculators and guides built for Australian standards

ConcreteMetric.com is Australia's premier resource for concrete professionals — featuring N20/N25/N32 calculators, AS 3600 design tools, mix design guides for GP cement, and construction resources compliant with NCC 2022 and Australian standards for 2026.

AS 3600 Compliant
N20-N50 Grades
NCC 2022 Updated
Mobile Site Ready

🇦🇺 ConcreteMetric Australia Mission

Built by Australian engineers for AS 3600, NCC 2022, and Australian concrete standards

📐 AS 3600 Calculators

Complete suite of AS 3600:2018 (Amendment 2021) concrete calculators for Australian engineers — rebar development length, shear capacity, flexural design, column interaction diagrams, slab deflection checks, and foundation design tools fully compliant with current Australian standards.

🏗️ N20-N50 Mix Designs

Australian concrete grades N20, N25, N32, N40, N50 with GP cement (AS 3972), 20mm aggregate, and realistic Australian mix designs. Slump, workability, pumpability, and exposure classification (A1, A2, B1, B2, C1, C2, U) calculators for all Australian conditions.

📋 NCC 2022 Compliance

All tools and guides updated for NCC 2022 Volume 1 (BCA Class 2-9 buildings) and state variations. Fire resistance (AS 3600 Table 5.5), durability (exposure classifications), and structural performance requirements built into every calculator.

Australian Standards We Support

🏛️ AS 3600:2018 Concrete Structures
🏠 NCC 2022 BCA Class 2-9
⚗️ AS 3972 GP Cement
🔩 AS 3600 N20-N50
💧 AS 1379 Concrete Testing
🔧 AS 3600 Rebar Design

Built for Australian Conditions

ConcreteMetric.com was created by CPEng chartered Australian civil/structural engineers who understand the unique challenges of concrete construction Down Under — from Darwin's cyclones to Melbourne's clay soils, Perth's corrosive coastal exposure, and Sydney's high-rise requirements.

Our calculators handle Australian specifics like 20MPa-50MPa characteristic strengths (N20-N50), GP cement (AS 3972), 10mm/12mm/16mm/20mm/24mm/32mm/36mm/40mm SL72/SL82/SL92 N12-N36 rebar, 20mm/10mm aggregate, and realistic Australian slump/workability requirements for pump, vibrate, and self-compacting concrete.

✅ Australian-First Features

🇦🇺 AS 3600:2018 Tables: Direct from Clause 9, 10, 13, 14 design provisions. 🎯 State Variations: QLD, NSW, VIC, SA, WA, TAS, NT, ACT differences. 🌡️ Exposure Classifications: A1/A2 (inland), B1/B2 (coastal), C1/C2 (severe marine), U (cyclic wet/dry).

Our Australian Team

🏛️ RPEQ/ CPEng Engineers

Registered Professional Engineers of Queensland (RPEQ) and Chartered Professional Engineers (CPEng) with Australian design experience in residential slabs, commercial footings, retaining walls, suspended floors, and multi-storey concrete frames per AS 3600 and NCC 2022.

🏗️ Concreters & Formworkers

Experienced Australian concreting contractors who understand realistic mix designs, pump line pressures, vibrator patterns, surface finishes, curing compounds, and wastage factors for Australian conditions and materials.

⚗️ Concrete Technologists

Australian concrete lab technicians experienced with AS 1379 testing, AS 1012 slump/flow tests, compressive strength cylinders (150x300mm), and quality control for GP, G, SR, SL cements per AS 3972.

📐 Structural Designers

Specialists in Australian residential (Class 1), commercial (Class 2-9), and industrial concrete design using Space Gass, Strand7, or ETABS with AS 3600 load combinations and capacity reduction factors (φ).

Why Australian Professionals Choose Us

Australian concrete construction demands precision. Our tools eliminate guesswork with AS 3600-compliant calculations that work on site, in the office, or quoting from your ute.

  • N20-N50 Grade Calculators: Exact Australian characteristic strengths with realistic mix proportions
  • Rebar Schedules: N12-N40 straight, hooks, laps per AS 3600 Clause 13.1
  • Slab Deflection: Span/depth ratios and long-term deflection per AS 3600 Clause 9.2
  • Shear Capacity: Vuc, Vf, Vuc* per AS 3600 Clause 8.2 with Australian concrete strengths
  • Footings & Pads: Soil bearing, overturning, sliding per AS 3600/AS 2159

🎯 True Blue Australian Accuracy

🇦🇺 20mm Aggregate Standard: All mix designs use Australian 20mm/10mm graded aggregate. 🏠 Class 1-9 Coverage: Residential slabs to high-rise per NCC 2022. 🔥 Fire Tables: AS 3600 Table 5.5 cover & dimension requirements. 🌊 Coastal Exposure: B1/B2/C1/C2 classifications built-in.

Australian Concrete FAQs

Are your calculators AS 3600:2018 compliant?
Yes. All structural calculators follow AS 3600:2018 (Amendment 2021) including capacity reduction factors (φ=0.65-0.85), load combinations, development lengths (Clause 13.1.2), lap splices, shear provisions (Clause 8.2), and deflection limits (Clause 2.4, 9.2). Updated for 2026 NCC requirements.
Do you support Australian concrete grades?
N20, N25, N32, N40, N50, N65, N80, N100 — all standard Australian characteristic compressive strengths (28-day cylinders) per AS 1379/AS 1012.10. Mix designs use GP cement (AS 3972), 20mm aggregate, and Australian slump/workability requirements.
What about state variations and exposure?
Full support for A1/A2 (inland), B1/B2 (coastal), C1/C2 (severe marine), U (cyclic) exposure classifications per AS 3600 Clause 4.3/AS 1379. State variations (QLD fire requirements, VIC slab tolerances, WA marine exposure) built into relevant calculators.
Do you cover NCC 2022 Class 1-9 buildings?
Complete NCC 2022 Volume 1 (BCA Class 2-9) and Volume 2 (Class 1) coverage. Fire resistance (FRL), structural performance (BP), waterproofing (WP), and durability requirements integrated into design calculators and guides.
Are rebar sizes Australian standard?
N12, N16, N20, N24, N28, N32, N36, N40 deformed bar plus SL72, SL82, SL92 mesh. Development lengths, lap splices, and curtailment per AS 3600 Clause 13.1.2 with Australian 500N/mm² (500E) yield strength.