Estimate Plumbing, Electrical, and HVAC Rough-In Allowances

A. Finished-Project Specification

Quantity: one MEP allowance worksheet covering plumbing, electrical, lighting, low-voltage, HVAC, ventilation, controls, fire, and specialty sections, with a fixture and device count sheet, leveled subcontractor budgets, documented unit allowances, an MEP risk register, and a conversion checklist, entered into the Chapter 1 workbook's MEP cost-code section.

B. Worksheet Section Schedule (Component Schedule)

Section	Quantity	Basis	Contents	Preparation / Purpose
Fixture and device count sheet	1	Section E, Steps 5–6, 10–11, 14	Plumbing fixtures, electrical devices, lighting fixtures, HVAC equipment by tag, type, and location	Establishes the traceable count basis for every system
System sections	9	Section D	Plumbing, electrical, lighting, low-voltage, HVAC, ventilation, controls, fire, specialty	Separates scope so gaps and duplication cannot hide across systems
Subcontractor budget-request record	1 per trade	Section F, Steps 18–19	Common documents, scope, schedule, assumptions, and return format sent to each qualified subcontractor	Produces comparable, leveled trade pricing
Documented unit allowances	1 per undesigned item	Section F, Steps 20–22	Unit basis, included scope, price date, geographic source, escalation, confidence	Prices scope not yet sufficiently designed or quoted
MEP risk register	1	Section G, Step 29	Capacity, routing, utility work, selections, availability, coordination risks and responses	Documents and assigns unresolved MEP risk
Conversion checklist	1	Section G, Step 28	Design deliverable or proposal required to convert each allowance to a fixed price	States exactly what replaces each allowance
Worksheet summary	1	Section G, Step 30	System, count, basis, material, labor, subcontract, fee, allowance, total	Presents the complete MEP allowance figure for the workbook

C. Pricing Basis Confirmation

• Purpose confirmation: before any count begins, confirm in writing whether this worksheet supports a conceptual budget, preliminary estimate, unit-price model, subcontract estimate, or fixed proposal, and record the confirmation on the worksheet header.
• Non-substitution statement: record on the worksheet, in plain language, that allowances do not replace complete trade design, code review, load calculations, permits, or qualified pricing.
• Confidence labeling: label each system section's confidence as Fixed (subcontractor-priced against complete documents), Budget (subcontractor-priced against incomplete documents), or Allowance (estimator unit basis, no subcontractor pricing).

D. System Section Schedule

System	Count Source	Typical Pricing Basis
Plumbing	Plumbing plan, fixture schedule	Subcontractor budget or fixture allowance plus rough-in allowance
Electrical	Electrical plan, panel schedule	Subcontractor budget or device-count allowance
Lighting	Reflected ceiling plan, lighting schedule	Fixture allowance separated from installation
Low-voltage	Low-voltage plan or narrative	Subcontractor budget where scope is defined; otherwise allowance
HVAC	Mechanical plan, equipment schedule	Subcontractor budget or equipment-count allowance with conceptual routing label
Ventilation	Mechanical plan, exhaust schedule	Subcontractor budget or fixture-count allowance
Controls	Mechanical or electrical plan	Subcontractor budget; allowance only where device count is known
Fire	Fire protection plan where included	Qualified subcontractor pricing only; not an estimator allowance
Specialty	Project-specific documents	Qualified subcontractor pricing or clearly scoped allowance

E. Preparation — Documents, Purpose, and Trade Boundaries

1. Review plumbing, electrical, lighting, architectural, structural, ceiling, cabinet, equipment, and appliance documents. Confirm the current revision of each against the Chapter 1 document register.
2. Confirm whether pricing is an allowance, conceptual budget, unit-price model, subcontract estimate, or fixed proposal. Record the confirmation per Section C.
3. State that allowances do not replace complete trade design, code review, calculations, permits, or qualified pricing. Record this statement on the worksheet header.
4. Create separate plumbing, electrical, lighting, low-voltage, HVAC, ventilation, controls, fire, and specialty sections. Use the nine sections listed in Section D.

F. Fixture, Device, and Equipment Count Procedure

1. Count plumbing fixtures by type, location, tag, and responsibility. Record each on the fixture and device count sheet.
2. Count sinks, faucets, toilets, tubs, showers, valves, drains, hose bibbs, appliances, water heaters, pumps, and specialty fixtures. Tag each to its plan location.
3. Distinguish fixture allowance from rough-in, trim, supply, setting, testing, and permit scope. Enter each as a separate line so the two costs are never combined.
4. Measure visible routing only where documents provide a suitable basis. Do not extend a routing measurement beyond what the documents actually show.
5. Identify trenching, drilling, firestopping, access panels, insulation, pads, and restoration boundaries. Record which party is responsible for each.
6. Count receptacles, switches, dimmers, controls, detectors, panels, disconnects, appliances, and dedicated circuits. Tag each to its plan location.
7. Count light fixtures by type and distinguish fixture allowance from installation. Enter each as a separate line.
8. Identify service, feeder, generator, EV, solar, low-voltage, security, data, and specialty scope. Flag each for subcontractor pricing rather than an estimator-built allowance.
9. Do not infer circuit design, wire size, panel capacity, or code requirements from device counts. Carry unresolved sizing as a subcontractor allowance per the Code / Design Alert above.
10. Count HVAC equipment, thermostats, supplies, returns, exhaust fans, ventilation equipment, dampers, and controls. Tag each to its plan location or equipment schedule.
11. Measure duct or line routes only as a labeled conceptual basis when design is incomplete. Mark every conceptual routing line clearly as conceptual, not measured.
12. Identify condensate, refrigerant, gas, electrical, curb, venting, penetration, firestop, and startup scope. Record which trade or allowance carries each item.
13. Identify structural, envelope, cabinet, roofing, ceiling, and finish coordination. Flag any conflict for the clarification log established in Chapter 2.

G. Subcontractor Coordination, Allowance Pricing, and Worksheet Assembly

1. Request qualified subcontractor budgets using common documents, scope, schedule, assumptions, and return format. Send the identical package to every subcontractor solicited for a given system.
2. Level proposals for permits, design, equipment, fixtures, labor, material, controls, testing, tax, and exclusions. Reconcile each proposal against the same checklist before comparison.
3. Use documented unit allowances only for items not sufficiently designed or quoted. Do not substitute a unit allowance for a system that already has a qualified subcontractor budget.
4. Record unit basis, included scope, price date, geographic source, escalation, and confidence. Complete this record for every allowance line before it is entered into the worksheet.
5. Separate owner-selected fixture or equipment allowance from installation and rough-in. Confirm the separation matches Section F, Step 3.
6. Identify code-driven or utility-driven costs that remain unresolved. Log each as an open clarification rather than estimating a value.
7. Include mobilization, supervision, layout, supports, firestopping, testing, commissioning, cleanup, and punch where assigned. Confirm which party carries each cost.
8. Include permit, inspection, utility, connection, meter, design, and engineering fees only when known or clearly allowed. Do not estimate a fee without a documented source.
9. Identify long-lead equipment, procurement risk, and deposits. Record lead time and deposit terms from each subcontractor's or supplier's quotation.
10. Do not combine fixed scope with uncertain allowance without separate lines. Confirm every worksheet row is labeled Fixed, Budget, or Allowance per Section C.
11. Prepare a conversion checklist for replacing allowances with fixed prices. State the specific design deliverable, subcontractor proposal, or quotation required for each allowance line.
12. Create an MEP risk register for capacity, routing, utility work, selections, availability, and coordination. Assign each risk a response: clarify, exclude, allow, alternate, unit price, contingency, transfer, or accept.
13. Prepare the worksheet by system, count, basis, material, labor, subcontract, fee, allowance, and total. Use the nine system sections from Section D and the row structure from Section B.

H. Documentation and Independent Review

1. Document exclusions and trade boundaries. State plainly what each system section does and does not include.
2. Complete independent review of counts, proposal leveling, duplication, and allowance clarity. Have a second reviewer trace at least one line in each system back to its plan tag, subcontractor budget, or documented unit basis.

I. Closeout — Entry Into the Master Workbook

1. Enter the completed worksheet into the MEP cost-code section of the master workbook. Confirm every row carries a source, a confidence label, and a value that matches the worksheet.
2. File the fixture and device count sheet, subcontractor budget requests and responses, allowance documentation, risk register, and conversion checklist in the estimating record. Log the entry in the workbook's revision log with date, person, and reason.