electrical box extender lines for a compact requirement sheet

Write the ring depth, existing box size, cover scope and quantity unit before factories price an extender as if it were a new device box.

Fields that belong on an electrical box extender sheet

An electrical box extender is a ring or collar that brings an existing box flush after the finish plane moves. It is not a pull box, not a new-work device box and not a weatherproof body unless you also specify those constructions as separate lines. Mandatory entries are the existing box trade size or measured opening, the added depth, whether the ring is metallic (and therefore part of the bonding path) or nonmetallic, and the quantity unit. Cover, gasket and knockout configuration are mandatory when the extender changes the device mounting plane or the cover seat; they are optional only when you are extending a box that already has a cover you will reuse and you state that reuse in writing.

Required

  • Product form: electrical box extender ring, and the existing box it must mate to
  • Measured added depth and the finish that caused the offset (tile, extra gypsum, panel overlay)
  • Material and whether the ring must continue the equipment grounding path
  • Quantity and unit (piece, pack or carton)
  • Destination state or postal code and requested timing
  • Whether unused openings must arrive plugged if the ring includes knockouts

Optional

  • Cover, gasket and fastener set if the original cover will not seat on the new plane
  • Paint or galvanizing finish if the ring will remain visible
  • Budget, currency and per-unit or whole-order basis
  • Supplier preference: premium, mid-range, budget-friendly or undecided
  • Sample of one ring before the production quantity
  • Datasheet and listing status for the quoted ring model

Optional budget and preference fields only narrow the search. Factories can still quote if those lines are blank. What the supplier must confirm back in writing is the mating size, added depth, material, whether the cover is included, packing quantity, and the listing status of that ring model—not a generic company certificate. Copy the compact list into the inquiry form, or read how mismatched outdoor offers arise in the comparison note.

Do not pre-fill cubic-inch volume from a weatherproof body you saw on a distributor page unless that body is the existing box being extended. Do not convert a NEMA type on the old box into an IP claim for the ring. Field wiring, cut-out work and destination approval stay with the installer you appoint.

Send the electrical box extender sheet as a factory request

Paste the required lines into the procurement field. Auxiliary budget and preference controls, when visible, merge into that same field at submit.

Send Your Requirement Sheet