Shuttering Board Calculator: Precise Formwork Quantity Estimates for Concrete Slabs

Stop Guessing Shuttering Board Quantities—Calculate Exactly What You Need

Formwork failure mid-pour costs money. Ordering excess shuttering boards wastes cash. PAC Shuttering Boards eliminate both problems with precision engineering and predictable repetition cycles. This calculator shows you exactly how many boards your next slab needs—and what it costs.

Why contractors use this tool: Eliminates guesswork. Prevents waste. Prevents shortages. Delivers GST-ready cost breakdowns for your accounts team.

Interactive Shuttering Board Calculator

Enter your slab dimensions below. The calculator instantly returns board quantity, weight, and cost estimates based on live PAC Shuttering Board pricing.

function calculateShuttering() {
const length = parseFloat(document.getElementById(‘slab-length’).value);
const width = parseFloat(document.getElementById(‘slab-width’).value);
const boardType = document.getElementById(‘board-type’).value;

if (!length || !width || !boardType) {
alert(‘Please enter slab dimensions and select a board type.’);
return;
}

// Pricing and weight per sheet (8×4 = 32 sq.ft)
const boardData = {
standard: { price: 2560, weight: 40, pricePerSqFt: 80 },
premium: { price: 2880, weight: 45, pricePerSqFt: 90 },
column: { price: 4000, weight: 55, pricePerSqFt: 125 }
};

const board = boardData[boardType];
const sheetArea = 32; // 8ft × 4ft
const totalArea = length * width;
const wasteArea = totalArea * 1.12; // 12% waste factor
const sheetsNeeded = Math.ceil(wasteArea / sheetArea);
const totalWeight = sheetsNeeded * board.weight;
const totalCost = sheetsNeeded * board.price;

document.getElementById(‘result-area’).textContent = totalArea.toFixed(0);
document.getElementById(‘result-boards’).textContent = sheetsNeeded;
document.getElementById(‘result-weight’).textContent = totalWeight.toLocaleString(‘en-IN’);
document.getElementById(‘result-price-per’).textContent = board.price.toLocaleString(‘en-IN’);
document.getElementById(‘result-total’).textContent = totalCost.toLocaleString(‘en-IN’);

document.getElementById(‘calc-results’).style.display = ‘block’;
}

Worked Examples: Common Slab Dimensions

Below are real-world calculations for standard slab sizes. Use these as benchmarks for your own projects.