Fixture schedule reconciliation: catch the type you forgot to count

What the fixture schedule tells you

Most lighting sets include a fixture schedule, either on a schedule sheet or on the lighting plans. Column names vary by engineer, but a schedule usually lists:

• Type or mark: the tag shown next to each fixture on the plan (A, A-EM, B1, X1).
• Description: troffer, downlight, linear pendant, wall pack, exit sign.
• Manufacturer and catalog number, often with approved equals.
• Source and output: lamp or LED, lumens, color temperature.
• Electrical data: wattage and voltage.
• Mounting: recessed, surface, pendant, wall.
• Notes: emergency battery, dimming, sensors, special finishes.

For the estimate, the type is the key. Every fixture you count needs a type, and every type in the schedule needs to show up somewhere in your counts or have a reason not to.

What reconciliation means

Reconciling a lighting takeoff means answering three questions:

1. Is each scheduled type accounted for in the counts?
2. Does each tag on the plans match a type in the schedule?
3. Do the quantities by type make sense for the building?

Common mismatches

• A scheduled type with nothing counted. Often the fixtures are on a sheet you did not open, an enlarged plan, or site lighting.
• A tag on the plan that is not in the schedule. A typo, a type added by addendum, or a schedule that was not updated.
• Emergency versions counted under the normal type. An A-EM counted as an A undercounts battery packs and changes the price.
• Demolition or existing fixtures counted as new. Renovation sets often show existing and new work side by side.
• The same area counted twice, once on the floor plan and again on an enlarged plan.
• A revised schedule in an addendum that changes types or adds new ones.

A manual reconciliation checklist

1. List each scheduled type, including emergency variants, in your takeoff sheet before you count.
2. After counting, mark any type with a zero and search the set for its tag.
3. Scan each lighting plan for tags that are not on your list.
4. Compare quantities per floor: a type that appears on every floor but one deserves a second look.
5. On renovation sets, read the general notes. "Existing to remain unless noted" changes what you price.
6. Re-run the check after each addendum.

How InstantTakeoff reconciles counts

InstantTakeoff builds the reconciliation into the takeoff instead of leaving it for the end:

• The fixture schedule is read for types and descriptions.
• Each counted fixture is typed from the tag next to it, matched to the schedule.
• A type whose tags on the sheet have too few counted fixtures beside them is flagged for a closer look, so you know where to look.
• If the set has no readable schedule, the type tags written on the plan are used.
• Title blocks, engineer seals and demolition views are left out of the count.
• Each count is a box on the sheet, so checking a flagged type takes seconds.

Treat the flags as the start of your review, not the end: you still decide what is in scope, what is an alternate and what is existing to remain.