Per-foot cost built from parts
Each foot of a C9 run needs socket wire plus one bulb and one clip for every socket on that foot. At 12-inch spacing that is one socket per foot, at 15-inch it is 0.8, and at 24-inch it is 0.5. The table uses O clips as the clip; plugs and cord are a small fixed cost covered further down. Prices as listed at Christmas Light Supplier on September 27, 2026.
| Spacing | Socket wire | Wire per ft | Per ft, pack prices | Per ft, case prices |
|---|---|---|---|---|
| 12" spacing (1 bulb per foot) | $275.00 / 1,000' | $0.275 | $1.322 | $1.141 |
| 15" spacing (0.8 bulbs per foot) | $240.00 / 1,000' | $0.240 | $1.078 | $0.933 |
| 24" spacing (0.5 bulbs per foot) | $289.00 / 1,000' | $0.289 | $0.813 | $0.722 |
Spacing is the biggest budget lever you control. Moving from 12-inch to 15-inch spacing removes one bulb and one clip in every five feet; moving to 24-inch halves them. On a 200-foot roofline, case-priced parts come to about $228.20 at 12-inch spacing, $186.56 at 15-inch and $144.40 at 24-inch, before plugs.
Kit prices per foot
Kits roll plugs, stakes and zip cord into the price, so their per-foot figure is an all-in number.
| Kit | Price | Length | Per foot |
|---|---|---|---|
| C9 250' 15" Spacing Commercial Installation Kit | $425.00 | 250' | $1.700 |
| C9 250' 12" Spacing Commercial Installation Kit | $435.00 | 250' | $1.740 |
| C9 500' 15" Spacing Commercial Installation Kit | $823.12 | 500' | $1.646 |
| C9 500' 12" Spacing Commercial Installation Kit | $935.00 | 500' | $1.870 |
| C9 1,000' 15" Spacing Commercial Installation Kit | $1,299.00 | 1,000' | $1.299 |
| C9 1,000' 12" Spacing Commercial Installation Kit | $1,605.10 | 1,000' | $1.605 |
| C9 2,000' 15" Spacing Commercial Installation Kit | $3,761.96 | 2,000' | $1.881 |
| C9 2,000' 12" Spacing Commercial Installation Kit | $3,970.96 | 2,000' | $1.985 |
Longer kits cost less per foot because the fixed parts are spread over more wire. The 250-foot kits sit around $1.700 per foot, while the 1,000-foot 15-inch kit is $1.299.
How to measure a roofline for a budget
- Measure each straight run: gutters, rakes (the sloped edges of gables), ridges and any peaks you plan to outline. A tape along the ground under the gutter gives a good gutter length; rake lengths can be estimated from the roof pitch or measured from a ladder.
- Add them up and add about 10 percent for corners, drops between levels and slack at connections.
- Multiply by the per-foot figure for your spacing. Add plugs: each separate run needs one male plug where it takes power and one female plug where it ends or connects onward. At $0.760 per plug in 50-packs, ten runs add about $15.20.
- If runs are far from an outlet, price SPT-1 zip cord at $0.312 per foot for custom leads instead of buying extra-long extension cords.
Worked example: a 160-foot ranch roofline
Take a single-story house with 160 feet of gutter and rake, plus 10 percent slack, for 176 feet. At 15-inch spacing that needs 141 sockets. Buying a full 1,000-foot spool leaves a lot of spare wire, so compare two routes. Route one is the 250' 15" kit at $425.00, which covers the whole house with wire to spare. Route two is building from a 1,000' spool at $240.00 plus 6 packs of 25 of bulbs ($119.70) and 2 packs of 100 of O clips ($49.90), which totals $409.60 before plugs but leaves 800-plus feet of wire for other projects. For a single house the kit is the lower cash outlay; the spool makes sense if you will light several houses or add more over the years.
Mini lights are priced per strand, not per foot. A 4-inch spacing mini strand is a 25-foot strand at $15.00, or $0.600 per foot as a single, and $0.498 per foot bought by the case.
Per-foot numbers are only complete when delivery is included. Christmas Light Supplier ships every order free, same day, no minimum, so these per-foot figures are the delivered cost.