Professional Estimation for Laticrete Permacolor, SpectraLock, and Sanded Grouts
10% Waste
15% Waste
20% Waste
Estimation Results:
Total Grout Needed: 0.00 lbs
(Based on a specific gravity of 1.6 typical for Laticrete Permacolor)
8 lb Bags0
25 lb Bags0
How to Use the Laticrete Grout Calculator
Planning a tile project requires precision to ensure you have enough material without excessive waste. This calculator is specifically designed for Laticrete grout products, utilizing the standard industry formula for coverage adjusted for the specific density of Laticrete cementitious and epoxy grouts.
Calculation Formula
The calculation uses the following physics-based formula for volume coverage:
Lbs = ((Tile Length + Tile Width) x Tile Thickness x Joint Width x Density) / (Tile Length x Tile Width) x Area x Waste Factor
Practical Example
If you are installing 12″ x 12″ x 3/8″ (0.375″) tiles with a 1/8″ (0.125″) grout joint over 100 square feet:
Surface Area: 100 sq ft
Grout needed: Approximately 7.5 lbs
With 15% Waste: Approximately 8.6 lbs (Requiring two 8lb bags or one 25lb bag)
Why Laticrete Specifics Matter
Laticrete grouts like Permacolor and SpectraLock PRO Premium have different yields due to their chemical composition. While cement-based grouts use a density factor near 1.6, epoxy grouts are denser. Always check the specific Laticrete data sheet for your chosen color and product type to ensure final accuracy.
function calculateLaticreteGrout() {
var L = parseFloat(document.getElementById('tileLength').value);
var W = parseFloat(document.getElementById('tileWidth').value);
var T = parseFloat(document.getElementById('tileThickness').value);
var J = parseFloat(document.getElementById('jointWidth').value);
var A = parseFloat(document.getElementById('totalArea').value);
var waste = parseFloat(document.getElementById('wasteFactor').value);
// Validate inputs
if (isNaN(L) || isNaN(W) || isNaN(T) || isNaN(J) || isNaN(A) || L <= 0 || W <= 0 || T <= 0 || J <= 0 || A <= 0) {
alert("Please enter valid positive numbers for all fields.");
return;
}
// Laticrete Specific Gravity for standard cement grout is approx 1.6
// Formula for lbs of grout:
// ((L + W) * T * J * Density * Area) / (L * W)
// Density factor 1.6 * Conversion constant for imperial units results in approx 0.166
var densityConstant = 0.166;
var rawLbs = ((L + W) * T * J * A * densityConstant) / (L * W);
var finalLbs = rawLbs * waste;
// Calculate bags
var bags8 = Math.ceil(finalLbs / 8);
var bags25 = Math.ceil(finalLbs / 25);
// Update Display
document.getElementById('lbsResult').innerHTML = finalLbs.toFixed(2);
document.getElementById('bags8').innerHTML = bags8;
document.getElementById('bags25').innerHTML = bags25;
document.getElementById('groutResults').style.display = 'block';
// Smooth scroll to results
document.getElementById('groutResults').scrollIntoView({ behavior: 'smooth', block: 'nearest' });
}