INTERACTIVE 3D GEOMETRY + BATCH-PLANT COST ENGINE
3D Concrete Slab Cost, Cubic Yardage & Rebar Calculator
Compute exact ready-mix cubic yards, 9-yard transit mixer loads, wet tonnage, #3/#4 deformed rebar linear footage, 3D isometric slab cross-sections, and 2026 foundation cost per square foot.
Ready-mix concrete is batched and billed by the cubic yard (27 cubic feet). At standard normal-weight aggregate density (150 lbs per cubic foot), one cubic yard weighs 4,050 lbs (2.025 US tons) and equals 45 pre-mixed 80-lb bags or 60 pre-mixed 60-lb bags.
1. SLAB DIMENSIONS & STRUCTURAL SPEC
ASTM C94 / ACI 302
FT
FT
3D ISOMETRIC MONOLITHIC SLAB & REBAR SCHEMATIC
30' x 50' (1,500 SQ FT)
2. VERIFIED VOLUME & 2026 COST TAKEOFF
LIVE MATH
TOTAL READY-MIX CONCRETE VOLUME (WITH +8% WASTE)
31 Cubic Yards
837 Cubic Feet • Footprint: 1,500 Sq Ft (160 LF Perimeter)
3,500 PSI
9-YD MIXER TRUCKS
4 Trucks
62.8 US Tons wet weight
80-LB / 60-LB BAGS
1,395 Bags
or 1,860 x 60-lb bags
DEFORMED REBAR
3,640 LF
182 x 20-ft Grade 60 bars
BATCH-PLANT CONCRETE
$5,208
Raw ready-mix @ $168/yd
2026 INSTALLED MONOLITHIC SLAB COST INDEX (MATERIAL + LABOR)
$7.24 - $15.25 / sq ft
LOW END (PAD-READY)
$10,860
$7.24 / sq ft base
REGIONAL MEDIAN
$16,875
$11.25 / sq ft benchmark
HEAVY / SELECT FILL
$22,875
$15.25 / sq ft deep beam
2026 STANDARD SLAB FOOTPRINT MATRIX
Concrete Slab Cost, Yardage & Rebar Reference Table (24x30 to 60x100)
Compare ready-mix cubic yardage (including perimeter turndown beam and 8% waste), 9-yard truck counts, deformed rebar linear footage, raw batch-plant concrete cost, and installed monolithic slab price ranges.
| Slab Size | Area | Perimeter | Cubic Yards (4" / 5") | 9-Yd Trucks | Rebar Grid | Ready-Mix Material | Installed Monolithic Range | Spec Sheet |
|---|---|---|---|---|---|---|---|---|
| 24x30 Slab | 720 sq ft | 108 LF | 12 yds (15 yds @ 5") | 2 trucks | 1,392 LF | $1,980 | $5,210 - $10,980 | Open 24x30 Spec → |
| 30x40 Slab | 1,200 sq ft | 140 LF | 20 yds (25 yds @ 5") | 3 trucks | 2,160 LF | $3,300 | $8,690 - $18,300 | Open 30x40 Spec → |
| 30x50 Slab | 1,500 sq ft | 160 LF | 25 yds (31 yds @ 5") | 4 trucks | 3,640 LF | $5,208 | $10,860 - $22,875 | Open 30x50 Spec → |
| 40x60 Slab | 2,400 sq ft | 200 LF | 39 yds (48 yds @ 5") | 6 trucks | 5,600 LF | $8,064 | $17,375 - $36,600 | Open 40x60 Spec → |
| 50x80 Slab | 4,000 sq ft | 260 LF | 64 yds (79 yds @ 5") | 11 trucks | 9,040 LF | $16,720 | $28,960 - $61,000 | Open 50x80 Spec → |
| 60x100 Slab | 6,000 sq ft | 320 LF | 95 yds (117 yds @ 5") | 16 trucks | 13,280 LF | $24,288 | $43,440 - $91,500 | Open 60x100 Spec → |
LOCK IN YOUR SPEC SHEET & LOCAL CONTRACTOR BID
Get a Turnkey Local Quote for Your Exact Slab & Building Spec
Lock in the cubic yardage, rebar schedule, and perimeter grade beam dimensions from the calculator above and request a site-specific quote from our vetted concrete foundation and metal building erection partner serving your county.
Selected Spec: 30' x 50' (1,500 Sq Ft) • ~31 Cubic Yards • 5" 3,500 PSI Monolithic Slab
- Includes laser pad-site grading & compacted select fill evaluation
- Anchor-bolt layout matched to pre-engineered or weld-up steel frames
- Zero obligation - compare against your local batch-plant & contractor estimates