🧱 Circular Raft Reinforcement (Full Circle · Final)
Full Circular Raft Foundation Calculator — bars up to 12 m remain single pieces at their actual length.
Longer bars split into as many full 12 m pieces as possible plus one remainder.
Developed length of every piece is verified ≤ 12,000 mm. Correct cover & face-bar deductions.
Detailing
Dia of Circle mm
Side Cover mm
Raft Height mm
Staggering mm
Bot Cover mm
Top Cover mm
Main Bars (//X)
Dia Ø
Spacing c/c mm
Distr. Bars (//Y)
Dia Ø
Spacing c/c mm
Face Bars
Dia Ø
Number Nos
Shear (vertical grid)
Dia Ø
Spacing c/c mm
Bottom Leg mm
Top Leg mm
Intermediate Layers (//X)
Dia Ø
Spacing mm
Layers
Horizontal Ties (X‑axis)
Dia Ø
Spacing mm
Leg mm
Horizontal Ties (Y‑axis)
Dia Ø
Spacing mm
Leg mm
PCC Details
PCC Thick mm
PCC Offset mm
💡 12 m Rule: short bars (≤ 12 m) stay as one piece. Longer bars split: full 12 m pieces + a remainder piece. Laps = 50 × dia at each splice; bends deducted only on the piece that carries the bend.
📊 Overall
—Total Pieces
—
Total Length
— m
Total Weight
— kg
Max Piece
— m
Raft RCC Vol.
— m³
Shuttering Area
— m²
PCC Volume
— m³
All data + summaries + PCC / Shuttering