Roofline bulb estimator.
Enter a rough linear footage for your roofline and see an estimated bulb count at our standard 15-inch spacing.
This is a planning estimate to help you think about scope — not a measurement, a quote, or a bid. It runs the same arithmetic you could do yourself with a calculator; we just do it for you.
How this is calculated
Our default installation uses warm white C9 bulbs spaced 15 inches apart. To go from a length to a bulb count, we convert your footage to inches and divide by that spacing — nothing more:
bulbs ≈ (linear feet × 12) ÷ 15
That's the entire formula. It doesn't account for corners, architectural detail, or coverage choices specific to your home, because we don't have that information yet — it's meant to help you think about scope, not to replace a design.
Want the exact scope for your home?
A design consultation confirms the real roofline, corners and coverage for your property. Request a design consultation, or read how roofline measurement works before you pace anything off.
Request a design consultation.
Tell us about your home and we will put together a lighting design and a quote for it.
Texting works too: 949-806-2333