CHRISTIAN SINATRA

Today's 2x4 PriceStandard Builders Grade 2x4x8Loading...
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      Time (Past 4 Years)
      Price ($)
    
    Created by Chris Sinatra using Claude Sonnet 3.5.

Today's 2x4 Price

Standard Builders Grade 2x4x8

Loading...

Last updated: Loading...

Created by Chris Sinatra using Claude Sonnet 3.5.

document.addEventListener('DOMContentLoaded', function() { setTimeout(function() { var price = document.getElementById('price'); var lastUpdate = document.getElementById('last-update'); var priceLine = document.getElementById('priceLine'); var svg = document.querySelector('svg'); // Function to generate prices based on date function generatePrice(date) { const basePrice = 3.50; const monthsSince2020 = (date - new Date(2020, 0, 1)) / (30 * 24 * 60 * 60 * 1000); // months from Jan 2020 let priceMultiplier = 1; if (monthsSince2020 < 12) { priceMultiplier = 1 + (monthsSince2020 * 0.02); // Gradual increase in the first year } else if (monthsSince2020 < 24) { if (monthsSince2020 < 17) { priceMultiplier = 1.25 + ((monthsSince2020 - 12) * 0.55); // Spike in demand 12-17 months in } else if (monthsSince2020 < 20) { priceMultiplier = 4 - ((monthsSince2020 - 17) * 0.8); // Decrease after peak } else { priceMultiplier = 1.6 + ((monthsSince2020 - 20) * 0.3); // Small recovery period } } else if (monthsSince2020 < 36) { priceMultiplier = 2.8 - ((monthsSince2020 - 24) * 0.05); // Flatten out around 2 years in } else { priceMultiplier = 1.4 - ((monthsSince2020 - 36) * 0.005); // Slight decline after 3 years } priceMultiplier += (Math.random() - 0.5) * 0.1; // Random fluctuation return Math.min(Math.max(basePrice * priceMultiplier, 3), 5).toFixed(2); // Ensure it stays between $3 and $5 } // Display current price var today = new Date(); var currentPrice = generatePrice(today); price.textContent = '$' + currentPrice; lastUpdate.textContent = today.toLocaleDateString('en-US', { year: 'numeric', month: 'long', day: 'numeric' }); // Generate historical data for the past 48 months (4 years) var points = []; for (var i = 0; i < 48; i++) { var x = 50 + (700 / 47) * i; var date = new Date(2020, i, 1); var historicalPrice = generatePrice(date); var y = 250 - (historicalPrice / 5) * 200; points.push(x + ',' + y); // Label time (X-axis) every 12 months