Sine Plate Market Value
Analysis of 499 eBay listings for sine plates to determine current market pricing.
What you'll usually pay
💡 Used ones cost about 45% more here.
👉 In short easy summary
Value is highest in 18-inch lengths and Star brand units, which trade at 44% and 31% below the market median respectively. Conversely, Suburban brand and 8-inch models command a significant premium, with deltas of 69% and 90% above the median.
💚 Best value for your money
Price by brand
Why? Prices range from Star at 121.94 to Suburban at 300.
Price by length
Why? Value varies significantly by size, from 18 in at 100 to 8 in at 337.48.
Price by width
Why? Pricing spreads from 3-1/4 in at 99.1 to 12 in at 285.2.
Price by height
Why? Costs range from 3-1/4 in at 99.13 to 2-5/8 in at 310.95.
🛒 Some on sale right now
Common questions
What is the median price for a new versus used sine plate?
The median price for new units is 124.42, while used units have a higher median of 180.
Which brand is the most expensive on the secondary market?
Suburban is the most expensive brand listed with a median price of 300.
How does the price of a 6-inch sine plate compare to the market median?
A 6-inch sine plate has a median price of 144.46, which is 19% below the market median.
How we got these numbers
Worked out from 200 live eBay listings (price range $42–$473, odd outliers ignored). These are asking prices, so use them as a guide. Last checked July 29, 2026.