Scenario: pricing an ELV package for a tower
CCTV, access control, and public address for a high-rise — from take-off to submitted tender, with the numbers shown.
A real ELV/ICT tender for a high-rise tower — from take-off to submitted price, with the numbers shown.
A main contractor invites tenders for the low-voltage package of a 32-storey tower: CCTV, access control, structured cabling, and EN 54 public address. Here's how the tender prices up.
The take-off, by system
SystemLineQty
ELV-CCTV4MP IP dome camera180 EA
ELV-CCTV64-ch NVR, 30-day3 EA
ELV-ACS2-door IP controller20 EA
ICT-CABLECat6A cabling point640 EA
ELV-PAVAEN 54-16 amplifier zone24 EA
Priced list → discount → duty → margin
Each line takes the supplier list price, applies the negotiated discount, adds 5% duty & freight to land it, then the margin for that system.
LineListDiscMarginAmount
Dome camera · 180AED 22018%22%AED 55,600
NVR · 3AED 3,80015%22%AED 13,050
Controller · 20AED 41020%25%AED 9,180
Cabling · 640AED 6820%24%AED 36,600
PA zone · 24AED 1,25018%20%AED 32,300
The submitted tender
Value
Cost of saleAED 116,900
Blended margin22.4%
Gross profitAED 33,830
Tender totalAED 150,730
Every line traces to a catalog item, a supplier discount, and a margin rule — so the price is fast to build, consistent across estimators, and defensible when the client asks how you got there.
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