Instantly calculate concrete volume, cubic yards, truckloads, rebar estimate, and total material cost for any aircraft hangar floor in the USA — FAA AC 150/5370 & ACI 360R compliant.
Enter your hangar floor dimensions and aircraft load class for a complete concrete estimate.
6 in slab · 4,000 PSI · #5 rebar @ 18 in o.c.
T-Hangar unit: ~40 ft · Box hangar: 60–120 ft
T-Hangar unit: ~40 ft · Corporate: 100–200 ft
Commercial/aviation mix avg: $155–$185/yd³ (2025)
A concrete hangar floor is a heavy-duty industrial slab specifically engineered to support the concentrated static and dynamic loads of aircraft. Unlike a residential garage floor, hangar slabs must accommodate aircraft weighing from 1,500 lbs (light sport) to over 200,000 lbs (large business jets and military aircraft), along with fuel trucks, aircraft tugs, maintenance equipment, and heavy tooling. In the USA, hangar floor design is governed by FAA Advisory Circular AC 150/5370-10 for airport construction and ACI 360R for slab-on-grade design principles. The key difference from a standard slab is thickness, PSI strength, joint design, and sub-base preparation requirements.
FAA AC 150/5370-10 requires hangar aprons and floor slabs to meet a minimum compressive strength of 4,000 PSI at 28 days, with a minimum slab thickness of 6 inches for light aircraft and up to 15 inches or more for heavy military or cargo aircraft. Sub-base must be compacted to 95% of Standard Proctor Density (ASTM D698) to a minimum depth of 6 inches of crushed aggregate. A 10-mil vapor retarder (ASTM E1745 Class A) is required under all interior hangar floor slabs.
T-hangars store single-engine piston aircraft and light sport aircraft (LSA) typically weighing 1,500–4,000 lbs. Standard slab thickness is 6 inches with 4,000 PSI concrete and #5 rebar at 18-inch centers. A typical T-hangar unit is 40×40 ft requiring approximately 30 cubic yards of concrete per unit.
Corporate FBO hangars housing business jets (Gulfstream, Citation, Falcon) require 8–10 inch slabs with 4,500–5,000 PSI concrete due to concentrated landing gear loads. A 100×120 ft corporate hangar floor needs approximately 185–230 cubic yards depending on slab thickness and thickened-edge design.
Military hangars housing C-130, C-17, or heavy transport aircraft require 12–18 inch slabs engineered to 5,000+ PSI with #6 or #7 rebar at 12-inch centers and post-tensioning in some designs. A 200×200 ft military hangar floor can require over 1,100 cubic yards — equivalent to 110+ ready-mix trucks.
Calculating the concrete volume for a concrete hangar floor follows the same cubic-yard formula as any slab but at a much larger scale. Because hangar floors are almost always poured with ready-mix concrete, the final output is expressed in cubic yards and truckloads rather than bags. Always add a minimum 8% waste factor for large commercial pours where partial-load returns are not possible.
Uncontrolled cracking is the #1 cause of premature hangar floor failure in the USA. ACI 360R recommends control joints at no more than 15× the slab thickness — for an 8-inch slab, joints every 10 feet. Isolation joints must be installed around all columns, drain frames, and tie-down anchor sleeves before the pour. Always consult a licensed ACI-certified concrete engineer for final joint layout on any hangar floor exceeding 5,000 sq ft.
Quick-reference table for concrete volume, truckloads, and estimated material cost for common US hangar floor sizes. All figures use an 8% waste factor and $165/yd³ average 2025 commercial ready-mix pricing. Costs are material only — labor, forming, and sub-base preparation are not included.
| Hangar Type / Size | Slab Thickness | Net Volume (yd³) | + 8% Waste (yd³) | Truckloads (10 yd) | Est. Material Cost |
|---|---|---|---|---|---|
| T-Hangar Unit (40×40 ft) | 6 in | 29.6 | 32.0 | 4 trucks | $5,280 |
| Small Box Hangar (50×60 ft) | 6 in | 55.6 | 60.0 | 6 trucks | $9,900 |
| Medium Box Hangar (60×80 ft) | 8 in | 118.5 | 128.0 | 13 trucks | $21,120 |
| Corporate Hangar (100×120 ft) | 10 in | 370.4 | 400.0 | 40 trucks | $66,000 |
| Large FBO Hangar (150×200 ft) | 10 in | 925.9 | 1,000.0 | 100 trucks | $165,000 |
| Military / Cargo (200×200 ft) | 12 in | 1,481.5 | 1,600.0 | 160 trucks | $264,000 |
| Helipad (50×50 ft) | 8 in | 61.7 | 66.7 | 7 trucks | $11,006 |
The FAA classifies aircraft by Airplane Design Group (ADG) which directly determines minimum pavement thickness. The table below shows the recommended concrete hangar floor specs for each aircraft class common to US general aviation and commercial airports, per FAA AC 150/5370-10 and ACI 360R.
| Aircraft Class / ADG | Example Aircraft | Slab Thickness | Min. PSI | Rebar Size / Spacing | FAA Standard |
|---|---|---|---|---|---|
| ADG I — Light Sport / Piston | Cessna 172, Piper Cherokee | 6 in | 4,000 PSI | #4 @ 18 in o.c. | AC 150/5370 |
| ADG II — Twin / Turboprop | King Air, Piper Seneca | 7–8 in | 4,000 PSI | #5 @ 18 in o.c. | AC 150/5370 |
| ADG III — Light Business Jet | Citation CJ4, Phenom 300 | 8–9 in | 4,500 PSI | #5 @ 15 in o.c. | AC 150/5370 |
| ADG IV — Mid-Size Business Jet | Gulfstream G280, Challenger 350 | 9–10 in | 4,500 PSI | #5 @ 12 in o.c. | Engineer req. |
| ADG V — Large Business Jet | Gulfstream G650, Global 7500 | 10–12 in | 5,000 PSI | #6 @ 12 in o.c. | Engineer req. |
| ADG VI — Military / Heavy Cargo | C-130, C-17, Boeing 747F | 12–18 in | 5,000+ PSI | #6–#7 @ 10–12 in | Structural Eng. |
Beyond raw volume calculations, a successful concrete hangar floor requires careful attention to mix design, joint placement, sub-base preparation, and surface finishing. These factors affect long-term performance far more than slab thickness alone. Review your project requirements against FAA Advisory Circulars before finalizing your design.
For hangar floors exposed to aviation fuel (Avgas 100LL and Jet-A), specify a water-to-cement ratio below 0.45. Lower W/C ratios produce denser concrete that resists fuel penetration and chemical attack. Add silica fume or fly ash to further improve durability and reduce permeability per ACI 201.2R.
Install cast-in-place tie-down anchor sleeves (typically 1-inch diameter, rated for 3,500–5,000 lb pull) before the concrete pour. Spacing is typically 10–20 feet on center depending on aircraft wingspan. Anchors must be set to final grade and protected with cover plates during the pour and finishing process.
FAA and EPA regulations require hangar floors to drain to an oil/water separator before discharge. Typical floor slope is 1/8 inch per foot (1%) toward interior drains. Factor drainage slopes into your volume calculation — sloped areas require slightly more concrete. Plan drain locations before setting forms.
Authoritative FAA, ACI, and ASTM references for concrete hangar floor design in the USA
FAA Advisory Circular AC 150/5370-10 covers standards for specifying construction of airports, including hangar aprons, floor slabs, sub-base requirements, and concrete mix specifications. Required reference for any hangar floor at a US public-use airport receiving FAA funding.
View FAA StandardsACI 360R "Design of Slabs-on-Ground" is the primary American Concrete Institute guide for industrial and aviation floor slab design, covering thickness, reinforcement, joint spacing, load capacity, and sub-base requirements applicable to all US hangar floor projects.
View ACI 360RASTM C94 governs the specification for ready-mixed concrete used in all US hangar floor pours — including truck drum capacity, maximum discharge time (90 minutes), mix consistency, slump, and field testing requirements. Every US ready-mix supplier must comply with ASTM C94.
View ASTM C94