Calculation Weight for 55 Density Pvc Sheet Board

Calculate Weight for 55 Density PVC Sheet Board body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f8f9fa; color: #333; line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 960px; margin: 20px auto; padding: 20px; background-color: #ffffff; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); } header { background-color: #004a99; color: #ffffff; padding: 20px; text-align: center; border-radius: 8px 8px 0 0; margin-bottom: 20px; } header h1 { margin: 0; font-size: 2.5em; } .content-section { margin-bottom: 30px; padding: 20px; background-color: #ffffff; border-radius: 8px; box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05); } h2, h3 { color: #004a99; margin-bottom: 15px; } .input-group { margin-bottom: 15px; display: flex; flex-direction: column; align-items: flex-start; } .input-group label { display: block; margin-bottom: 5px; font-weight: bold; color: #004a99; } .input-group input[type="number"], .input-group select { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; /* Ensures padding doesn't affect width */ font-size: 1em; } .input-group input[type="number"]:focus, .input-group select:focus { border-color: #004a99; outline: none; box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #666; margin-top: 5px; } .error-message { color: #dc3545; font-size: 0.85em; margin-top: 5px; display: none; /* Hidden by default */ } .button-group { margin-top: 20px; display: flex; gap: 10px; flex-wrap: wrap; } button { padding: 10px 20px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; transition: background-color 0.3s ease; } .btn-primary { background-color: #004a99; color: white; } .btn-primary:hover { background-color: #003a7a; } .btn-secondary { background-color: #6c757d; color: white; } .btn-secondary:hover { background-color: #5a6268; } .btn-success { background-color: #28a745; color: white; } .btn-success:hover { background-color: #218838; } #result { background-color: #e9ecef; padding: 20px; border-radius: 8px; margin-top: 20px; text-align: center; border: 1px solid #dee2e6; } #result h3 { margin-top: 0; color: #004a99; } #result .main-result { font-size: 2.5em; font-weight: bold; color: #004a99; margin-bottom: 10px; } #result .sub-results div { margin-bottom: 8px; font-size: 1.1em; } #result .formula-explanation { font-size: 0.9em; color: #666; margin-top: 15px; padding-top: 10px; border-top: 1px dashed #ccc; } table { width: 100%; border-collapse: collapse; margin-top: 20px; margin-bottom: 20px; } th, td { padding: 10px; text-align: left; border: 1px solid #ddd; } th { background-color: #004a99; color: white; } tr:nth-child(even) { background-color: #f2f2f2; } caption { font-size: 1.1em; font-weight: bold; color: #004a99; margin-bottom: 10px; caption-side: top; text-align: left; } canvas { display: block; margin: 20px auto; max-width: 100%; background-color: #ffffff; border-radius: 8px; box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05); } .article-content { margin-top: 30px; } .article-content h2, .article-content h3 { color: #004a99; margin-top: 25px; margin-bottom: 15px; } .article-content p { margin-bottom: 15px; } .article-content ul, .article-content ol { margin-bottom: 15px; padding-left: 20px; } .article-content li { margin-bottom: 8px; } .faq-section { background-color: #e9ecef; padding: 20px; border-radius: 8px; margin-top: 20px; } .faq-section h3 { margin-top: 0; } .faq-item { margin-bottom: 15px; } .faq-item strong { color: #004a99; cursor: pointer; display: block; margin-bottom: 5px; } .faq-item p { margin-left: 20px; margin-bottom: 0; display: none; /* Hidden by default */ } .internal-links-section { margin-top: 30px; padding: 20px; background-color: #f8f9fa; border-radius: 8px; } .internal-links-section h3 { margin-top: 0; color: #004a99; } .internal-links-section ul { list-style: none; padding: 0; } .internal-links-section li { margin-bottom: 10px; } .internal-links-section a { color: #004a99; text-decoration: none; font-weight: bold; } .internal-links-section a:hover { text-decoration: underline; } .internal-links-section p { font-size: 0.9em; color: #666; margin-top: 5px; } @media (min-width: 768px) { .container { margin: 40px auto; padding: 30px; } header h1 { font-size: 3em; } .input-group { flex-direction: row; align-items: center; } .input-group label { width: 200px; /* Fixed width for labels */ margin-bottom: 0; } .input-group input[type="number"], .input-group select { flex-grow: 1; /* Allow input to take remaining space */ } .button-group { justify-content: flex-end; } }

PVC Sheet Board Weight Calculator (55 Density)

Accurately calculate the weight of your 55 density PVC sheet board.

Calculate PVC Sheet Board Weight

Enter the dimensions of your PVC sheet board to calculate its weight. The calculator assumes a density of 1.4 g/cm³ (which corresponds to approximately 55 lb/ft³ for practical purposes in manufacturing contexts, though density units can vary). We use metric units (cm, kg) for precision.

Enter the length of the PVC sheet in centimeters.
Enter the width of the PVC sheet in centimeters.
Enter the thickness of the PVC sheet in millimeters.

Calculation Results

— kg
Volume: — cm³
Density Used: — g/cm³
Material Weight: — kg
Formula: Weight (kg) = Volume (cm³) * Density (g/cm³) / 1000 (to convert g to kg)

Weight vs. Thickness Comparison

Weight of a 244cm x 122cm PVC sheet at varying thicknesses.

Weight Breakdown by Dimension

Dimension Value Unit
Length cm
Width cm
Thickness mm
Calculated Volume cm³
Material Density g/cm³
Total Estimated Weight kg

Understanding the Calculation of Weight for 55 Density PVC Sheet Board

What is 55 Density PVC Sheet Board?

The term "55 density PVC sheet board" typically refers to a specific type of polyvinyl chloride (PVC) material used in various industrial and construction applications. While "density" can be expressed in different units, in the context of sheet boards, it often relates to the material's mass per unit volume. A common interpretation is that it is designed to have a specific weight characteristic, often related to standards like ASTM or ISO, or as a manufacturer's specification. For a material commonly referred to as "55 density PVC," it's crucial to understand what this number represents. In many manufacturing and international contexts, density might be expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). A density around 1.4 g/cm³ is standard for rigid PVC. The "55" might sometimes refer to pounds per cubic foot (lb/ft³), which is approximately 881 kg/m³ or 0.88 g/cm³. However, for sheet boards, a higher density is more common, implying the "55" might be a grade or a slightly different measurement. For the purpose of this calculator, we will assume a standard rigid PVC density of approximately 1.4 g/cm³, which is a widely accepted value.

Who should use this calculation? This weight calculation is essential for material suppliers, fabricators, logistics managers, construction professionals, and DIY enthusiasts who need to estimate the weight of PVC sheets for purchasing, handling, shipping, structural planning, and inventory management. Accurate weight calculation for 55 density PVC sheet board helps in avoiding under- or over-ordering, planning transportation capacity, and ensuring safe manual handling.

Common Misconceptions: A common misconception is that "55 density" directly translates to a specific, universally understood unit without further context. It's important to clarify if "55" refers to lb/ft³, kg/m³, or another metric. Another misconception is that all PVC sheets of the same apparent "density" will weigh the same; variations in manufacturing processes, additives, and precise composition can lead to slight differences. Our calculator provides an estimate based on standard physical principles and a commonly accepted density for rigid PVC.

55 Density PVC Sheet Board Weight Formula and Mathematical Explanation

Calculating the weight of a PVC sheet board is a fundamental physics problem based on its dimensions and material density. The core principle is that weight is a function of volume and density.

The Formula

The formula to calculate the weight of the PVC sheet board is derived from the definition of density:

Density = Mass / Volume

Rearranging this formula to solve for Mass (Weight):

Mass = Volume × Density

In practical terms for our calculator, we use metric units for precision and ease of conversion:

  1. Calculate Volume: The volume of a rectangular sheet is Length × Width × Thickness. However, we need consistent units. If Length and Width are in centimeters (cm) and Thickness is in millimeters (mm), we must convert the thickness to centimeters by dividing by 10.
    Volume (cm³) = Length (cm) × Width (cm) × (Thickness (mm) / 10)
  2. Convert Density to Consistent Units: The standard density of rigid PVC is approximately 1.4 grams per cubic centimeter (g/cm³). This is a widely accepted value.
  3. Calculate Mass in Grams: Mass (g) = Volume (cm³) × Density (g/cm³)
  4. Convert Mass to Kilograms: Since we typically want the weight in kilograms (kg), we divide the mass in grams by 1000.
    Weight (kg) = Mass (g) / 1000

Combining these steps, the final formula used by the calculator is:

Weight (kg) = [Length (cm) × Width (cm) × (Thickness (mm) / 10)] × 1.4 (g/cm³) / 1000

This formula ensures that regardless of the input units (cm for length/width, mm for thickness), the output is in a standard, usable unit (kilograms).

Variables Table

Variable Meaning Unit Typical Range / Value
Length The longest dimension of the PVC sheet. cm 100 – 300+
Width The shorter dimension of the PVC sheet. cm 50 – 200+
Thickness The depth of the PVC sheet. mm 1 – 25+
Volume The total space occupied by the sheet. cm³ Calculated
Density Mass per unit volume of the PVC material. g/cm³ Approx. 1.4 (for rigid PVC, assumed for 55 density spec)
Weight The final mass of the PVC sheet. kg Calculated

Practical Examples (Real-World Use Cases)

Example 1: Standard Sheet for Signage

A sign maker needs to order a 55 density PVC sheet board for a large outdoor sign. The required dimensions are 244 cm in length, 122 cm in width, and 10 mm in thickness. They need to know the weight to arrange for appropriate handling equipment.

Inputs:

  • Length: 244 cm
  • Width: 122 cm
  • Thickness: 10 mm

Calculation Steps:

  • Convert thickness to cm: 10 mm / 10 = 1 cm
  • Calculate Volume: 244 cm × 122 cm × 1 cm = 29768 cm³
  • Calculate Weight in grams: 29768 cm³ × 1.4 g/cm³ = 41675.2 g
  • Convert to kilograms: 41675.2 g / 1000 = 41.68 kg

Result: The 244 cm x 122 cm x 10 mm PVC sheet board weighs approximately 41.68 kg. This weight is manageable with a pallet jack or two people, but caution is advised for manual lifting.

Example 2: Thicker Sheet for Structural Application

A construction project requires a custom-cut 55 density PVC sheet board that is 150 cm long, 80 cm wide, and 18 mm thick for a partition wall component. The team needs to estimate the weight for load-bearing calculations.

Inputs:

  • Length: 150 cm
  • Width: 80 cm
  • Thickness: 18 mm

Calculation Steps:

  • Convert thickness to cm: 18 mm / 10 = 1.8 cm
  • Calculate Volume: 150 cm × 80 cm × 1.8 cm = 21600 cm³
  • Calculate Weight in grams: 21600 cm³ × 1.4 g/cm³ = 30240 g
  • Convert to kilograms: 30240 g / 1000 = 30.24 kg

Result: The 150 cm x 80 cm x 18 mm PVC sheet board weighs approximately 30.24 kg. This weight is manageable for installation.

How to Use This PVC Sheet Board Weight Calculator

Using our 55 density PVC sheet board weight calculator is straightforward. Follow these simple steps to get accurate weight estimations:

  1. Enter Dimensions: In the input fields provided, enter the precise Length, Width, and Thickness of your PVC sheet board. Ensure you use centimeters (cm) for Length and Width, and millimeters (mm) for Thickness.
  2. Check Density Value: The calculator uses a default density of 1.4 g/cm³, common for rigid PVC and often implied by specifications like "55 density". If your material has a different specified density, note that this calculator assumes the standard value.
  3. Click "Calculate Weight": Once all dimensions are entered, click the "Calculate Weight" button.
  4. Review Results: The calculator will instantly display:
    • Total Estimated Weight (kg): The primary result, showing the total mass of the sheet.
    • Volume (cm³): The calculated volume of the sheet.
    • Density Used (g/cm³): Confirms the density value used in the calculation.
    • Material Weight (kg): An intermediate calculation step.
    You will also see an updated chart and table reflecting your input.
  5. Understand the Formula: A brief explanation of the formula used (Weight = Volume × Density) is provided below the results for transparency.
  6. Use the Buttons:
    • Reset: Click this button to clear all input fields and results, allowing you to start fresh with new dimensions.
    • Copy Results: Click this button to copy the main result, intermediate values, and key assumptions (like density) to your clipboard for use elsewhere.

Decision-Making Guidance: Use the calculated weight to inform decisions about:

  • Transportation: Ensure your vehicle can handle the load.
  • Storage: Plan for appropriate shelving or storage space.
  • Handling: Determine if lifting equipment or multiple people are needed.
  • Purchasing: Accurately forecast material needs and associated shipping costs.

Key Factors That Affect PVC Sheet Board Weight Results

While our calculator provides a precise estimation based on dimensions and standard density, several real-world factors can influence the actual weight of a 55 density PVC sheet board:

  • Actual Material Density Variations: Although specified as "55 density," the exact density can vary slightly between manufacturers and even batches due to differences in raw material purity, additive concentrations (plasticizers, stabilizers, fillers), and manufacturing processes. Our calculator uses a standard 1.4 g/cm³ for rigid PVC.
  • Moisture Content: While PVC is relatively non-hygroscopic, significant variations in ambient humidity or improper storage could theoretically introduce trace amounts of moisture, slightly increasing weight. This effect is usually negligible for PVC.
  • Additives and Fillers: The "55 density" specification might be achieved using specific formulations. Some additives, like calcium carbonate fillers, are denser than PVC resin itself and can increase the overall density and weight. Conversely, some blowing agents (used for foamed PVC) reduce density.
  • Manufacturing Tolerances: Sheet production involves tolerances for length, width, and thickness. Even slight deviations from the nominal dimensions (e.g., a sheet measuring 244.5 cm instead of 244 cm) will alter the final calculated volume and weight.
  • Temperature Effects: Like most materials, PVC expands when heated and contracts when cooled. While the volumetric change might be minimal at typical ambient temperatures, significant temperature fluctuations could technically alter the volume and thus the weight per unit volume.
  • Surface Treatments or Coatings: If the PVC sheet has applied coatings, films, or lamination on its surface, these layers will add to the overall weight. The calculator only accounts for the base PVC material.

Frequently Asked Questions (FAQ)

What does '55 density' mean for PVC sheet board?

The term "55 density" for PVC sheet board is a manufacturer's specification that indicates a particular weight or material characteristic. It commonly relates to the material's mass per unit volume. While units can vary, for rigid PVC, a density around 1.4 g/cm³ is standard. Our calculator assumes this standard density, as precise unit conversion for "55" can be ambiguous without manufacturer data.

Can I use imperial units (inches, pounds) for calculation?

This calculator is optimized for metric units (centimeters for length/width, millimeters for thickness) to ensure precision and standard unit consistency. If you have imperial measurements, you'll need to convert them to centimeters and millimeters before entering them. 1 inch = 2.54 cm, 1 foot = 30.48 cm, 1 pound ≈ 0.453592 kg.

Is the density of PVC always 1.4 g/cm³?

The density of rigid PVC is typically around 1.38-1.45 g/cm³. Our calculator uses 1.4 g/cm³ as a representative value. Flexible PVC, which contains plasticizers, will have a lower density. The "55 density" specification likely confirms the use of a formulation resulting in a density within this typical range for rigid PVC.

What if my sheet has a different thickness unit?

The calculator specifically asks for thickness in millimeters (mm). If your measurement is in inches or centimeters, please convert it first. For example, 1/2 inch is approximately 12.7 mm, and 2 cm is 20 mm.

How accurate is this weight calculation?

The calculation is highly accurate based on the provided dimensions and the assumed standard density of 1.4 g/cm³. The accuracy depends on the precision of your measurements and the actual density of the specific PVC sheet material you are using.

Does temperature affect the weight calculation?

Temperature can cause materials to expand or contract, slightly altering volume. However, for typical ambient temperature ranges experienced during handling and installation, the change in PVC volume and its resulting weight is minimal and usually negligible for practical purposes.

What are common applications for 55 density PVC sheet board?

55 density PVC sheet boards are versatile and used in construction for partitions, cladding, and decorative panels; in advertising for signage and displays; in industrial settings for chemical-resistant lining or machine guards; and in furniture manufacturing for countertops or cabinet doors. Their durability, water resistance, and workability make them popular.

Can I use this calculator for other types of plastic sheets?

This calculator is specifically designed for 55 density PVC sheet board, assuming a density of 1.4 g/cm³. For other types of plastic sheets (like acrylic, polycarbonate, or different densities of PVC), you would need a calculator that uses their respective material densities for accurate weight calculation.

© 2023 Your Company Name. All rights reserved. | Information provided for estimation purposes.
var densityGPerCm3 = 1.4; // Standard density for rigid PVC function validateInput(inputId, errorId, minValue, maxValue) { var inputElement = document.getElementById(inputId); var errorElement = document.getElementById(errorId); var value = parseFloat(inputElement.value); errorElement.style.display = 'none'; // Hide previous error if (isNaN(value) || inputElement.value.trim() === "") { errorElement.textContent = "This field is required."; errorElement.style.display = 'block'; return false; } if (value maxValue) { errorElement.textContent = "Value is too high."; errorElement.style.display = 'block'; return false; } return true; } function calculateWeight() { var isValid = true; isValid = validateInput("lengthCm", "lengthCmError", 0) && isValid; isValid = validateInput("widthCm", "widthCmError", 0) && isValid; isValid = validateInput("thicknessMm", "thicknessMmError", 0) && isValid; if (!isValid) { // Clear results if validation fails document.getElementById("totalWeightKg").textContent = "– kg"; document.getElementById("volumeCm3").textContent = "– cm³"; document.getElementById("densityGPerCm3").textContent = "– g/cm³"; document.getElementById("materialWeightKg").textContent = "– kg"; return; } var lengthCm = parseFloat(document.getElementById("lengthCm").value); var widthCm = parseFloat(document.getElementById("widthCm").value); var thicknessMm = parseFloat(document.getElementById("thicknessMm").value); // Convert thickness from mm to cm var thicknessCm = thicknessMm / 10; // Calculate Volume in cm³ var volumeCm3 = lengthCm * widthCm * thicknessCm; // Calculate Weight in grams var weightGrams = volumeCm3 * densityGPerCm3; // Convert Weight to kilograms var weightKg = weightGrams / 1000; // Display results document.getElementById("totalWeightKg").textContent = weightKg.toFixed(2) + " kg"; document.getElementById("volumeCm3″).textContent = volumeCm3.toFixed(2) + " cm³"; document.getElementById("densityGPerCm3″).textContent = densityGPerCm3.toFixed(1) + " g/cm³"; document.getElementById("materialWeightKg").textContent = weightGrams.toFixed(2) + " g"; // Update table document.getElementById("tableLength").textContent = lengthCm.toFixed(2); document.getElementById("tableWidth").textContent = widthCm.toFixed(2); document.getElementById("tableThickness").textContent = thicknessMm.toFixed(1); document.getElementById("tableVolume").textContent = volumeCm3.toFixed(2); document.getElementById("tableDensity").textContent = densityGPerCm3.toFixed(1); document.getElementById("tableTotalWeight").textContent = weightKg.toFixed(2); updateChart(lengthCm, widthCm, thicknessMm); } function resetCalculator() { document.getElementById("lengthCm").value = "244"; document.getElementById("widthCm").value = "122"; document.getElementById("thicknessMm").value = "10"; // Clear error messages document.getElementById("lengthCmError").textContent = ""; document.getElementById("widthCmError").textContent = ""; document.getElementById("thicknessMmError").textContent = ""; document.getElementById("lengthCmError").style.display = 'none'; document.getElementById("widthCmError").style.display = 'none'; document.getElementById("thicknessMmError").style.display = 'none'; calculateWeight(); // Recalculate with default values } function copyResults() { var mainResult = document.getElementById("totalWeightKg").textContent; var volume = document.getElementById("volumeCm3").textContent; var density = document.getElementById("densityGPerCm3").textContent; var materialWeight = document.getElementById("materialWeightKg").textContent; var assumptions = "Assumed Density: " + densityGPerCm3.toFixed(1) + " g/cm³"; var resultsText = "PVC Sheet Board Weight Calculation:\n\n" + "Total Weight: " + mainResult + "\n" + "Volume: " + volume + "\n" + "Material Weight: " + materialWeight + "\n\n" + assumptions; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = resultsText; textArea.style.position = "fixed"; textArea.style.opacity = 0; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'successful' : 'unsuccessful'; console.log('Copying text command was ' + msg); // Optionally provide user feedback alert('Results copied to clipboard!'); } catch (err) { console.log('Oops, unable to copy'); alert('Failed to copy results. Please copy manually.'); } document.body.removeChild(textArea); } function updateChart(currentLength, currentWidth, currentThickness) { var ctx = document.getElementById('weightChart').getContext('2d'); var chartData = { labels: [], datasets: [{ label: 'Weight (kg)', data: [], borderColor: '#004a99', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: true, tension: 0.1 }, { label: 'Volume (cm³)', data: [], borderColor: '#28a745', backgroundColor: 'rgba(40, 167, 69, 0.2)', fill: true, tension: 0.1 }] }; // Generate data for chart (e.g., varying thickness from 1mm to 25mm for a standard 244×122 sheet) var fixedLength = currentLength > 0 ? currentLength : 244; // Use current or default var fixedWidth = currentWidth > 0 ? currentWidth : 122; // Use current or default for (var t = 1; t = 1 && currentThickness <= 25) { var currentIndex = chartData.labels.indexOf(currentThickness + ' mm'); if (currentIndex !== -1) { chartData.datasets[0].pointBackgroundColor = Array(chartData.labels.length).fill('#f8f9fa'); chartData.datasets[0].pointBorderColor = Array(chartData.labels.length).fill('#004a99'); chartData.datasets[0].pointBackgroundColor[currentIndex] = '#004a99'; chartData.datasets[0].pointBorderColor[currentIndex] = '#004a99'; chartData.datasets[1].pointBackgroundColor = Array(chartData.labels.length).fill('#f8f9fa'); chartData.datasets[1].pointBorderColor = Array(chartData.labels.length).fill('#28a745'); chartData.datasets[1].pointBackgroundColor[currentIndex] = '#28a745'; chartData.datasets[1].pointBorderColor[currentIndex] = '#28a745'; } } else { // Reset point styles if current thickness is out of chart range chartData.datasets[0].pointBackgroundColor = Array(chartData.labels.length).fill('#004a99'); chartData.datasets[0].pointBorderColor = Array(chartData.labels.length).fill('#004a99'); chartData.datasets[1].pointBackgroundColor = Array(chartData.labels.length).fill('#28a745'); chartData.datasets[1].pointBorderColor = Array(chartData.labels.length).fill('#28a745'); } // Destroy previous chart instance if it exists if (window.weightChartInstance) { window.weightChartInstance.destroy(); } window.weightChartInstance = new Chart(ctx, { type: 'line', data: chartData, options: { responsive: true, maintainAspectRatio: true, plugins: { legend: { position: 'top', }, title: { display: false, } }, scales: { x: { title: { display: true, text: 'Thickness (mm)' } }, y: { title: { display: true, text: 'Value' }, beginAtZero: true } } } }); } function toggleFaq(element) { var content = element.nextElementSibling; var display = window.getComputedStyle(content).display; // Close all other FAQs first var faqs = document.querySelectorAll('.faq-item p'); faqs.forEach(function(item) { if (item !== content && window.getComputedStyle(item).display === 'block') { item.style.display = 'none'; item.previousElementSibling.style.fontWeight = 'bold'; } }); if (display === 'none') { content.style.display = 'block'; element.style.fontWeight = 'bold'; } else { content.style.display = 'none'; element.style.fontWeight = 'normal'; } } // Initial calculation on page load with default values document.addEventListener("DOMContentLoaded", function() { resetCalculator(); // Sets default values and calculates // Initial chart update based on default values updateChart( parseFloat(document.getElementById("lengthCm").value), parseFloat(document.getElementById("widthCm").value), parseFloat(document.getElementById("thicknessMm").value) ); });

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