MT382 Unit 8 Estimate Reconciliation Bridge Example

Course	MT382 Construction Cost Estimating
Unit	Unit 8
Paper type	Estimate reconciliation
Length	About 840 words, 6 pages double-spaced
Format	APA 7 student paper
School	Purdue University Global
Program	BS in Business Administration
Updated	October 2026

Free sample paper for MT382 Unit 8

From One Total to the Other: An MT382 Unit 8 Estimate Reconciliation From Schematic Design to Design Development

[Student Name]

Purdue University Global

MT382: Construction Cost Estimating

Unit 8 Estimate Reconciliation

[Instructor Name]

[Date]

The parks district, estimates and changes are composite; the sources cited are real.

What this part is doingWarning in the lead that a falling total can hide rising cost tells the board what the bridge will reveal.

Why a Bridge

The board's question is not whether the total moved but why. A memo that simply replaced the January figure with the May figure would tell the board the project got slightly cheaper. The bridge shows that more than half a million dollars of direct cost was added, and that the total fell only because allowances that were always scheduled to shrink did so. Holm et al. (2005) treat reconciliation between estimates as essential to cost control precisely because a new total alone conceals its causes.

Direct Cost Changes, Sorted by Cause

Changes are sorted by cause before they are summed, starting with the ones the district controls.

Owner scope comes first. The district added a community kitchen, plus 318,000 dollars. It is listed first and separately because it is the one change the board could remove by decision alone.

Design decisions come next. The gym's exterior wall switched from masonry to insulated metal panel, as the Unit 4 assemblies estimate recommended, minus 187,700. The mechanical engineer added a dedicated outdoor air unit for the gym to meet ventilation requirements at full occupancy, plus 212,000. And the civil engineer replaced a surface stormwater pond with underground detention, because the selected site is too small for a pond, plus 146,000.

Measurement comes third. Exterior wall area measured from the design development drawings came in 6 percent below the parametric figure used at schematic design, minus 71,000.

Market changes come last. Steel joist and deck prices rose 11 percent between January and May, plus 97,000.

Direct cost rose by 514,300 dollars in total.

Markups on the Changes

The contractor's markups on time, profit and coverage apply to the added direct cost too, adding 32,817 dollars. The construction subtotal rises from 13,933,252 to 14,480,369.

More than half a million dollars of direct cost growth was masked by allowances that were always scheduled to fall.

What this part is doingStating the masking effect plainly gives the board the single fact the bridge exists to show.

Design Contingency, Split in Two

Design contingency fell 524,503 dollars, from 1,393,325 to 868,822, and the bridge splits that change in two. Releasing four points of rate, from 10 to 6 percent as the ladder in the Unit 7 memo planned, saves 557,330 dollars on the January subtotal. Applying 6 percent to the larger subtotal adds 32,827 back. The release is planned and expected; it is not a saving the design team earned.

Escalation, Split Three Ways

Escalation fell 110,427 dollars, from 1,031,631 to 921,204, and the bridge splits it three ways. The design development estimate is priced in May 2027 dollars rather than January, so four fewer months need escalating, worth 222,805 dollars. The bid date moved two months later, pushing the construction midpoint to October 2028 and adding 111,021. And the larger base adds 1,357. The net change is minus 110,427.

Construction Contingency

Construction contingency, at 5 percent of everything above it, fell 4,390 dollars to 813,520, because the base beneath it shrank slightly.

The Bridge, Reconciled

The bridge opens at 17,176,118 dollars and closes at 17,083,915. Direct changes add 514,300, markups 32,817; design contingency subtracts 524,503, escalation 110,427 and construction contingency 4,390. The running total reconciles to the dollar, and a waterfall chart repeats the same steps visually. Odeck (2004) found that cost growth on public projects is often larger than reported totals suggest when early allowances are not tracked separately, and the bridge is designed to prevent that.

What Changed in Class

The May estimate rests on design development drawings and is a Class 3 estimate under the building-industry classification, narrower in expected range than January's Class 4 (AACE International, 2020). Its range is therefore tighter, roughly minus 10 to plus 20 percent, and the board can rely on it for setting a construction budget in a way it could not rely on the January figure.

Changes Not Yet Priced

Three items appeared in design development comments but are not in the May estimate, and the bridge lists them so they are not forgotten: a request from the recreation staff for a second elevator stop at a mezzanine storage room, a possible upgrade of the gym floor from a synthetic to a wood sports floor, and a utility company's pending decision on whether a new transformer pad will be required. Each could add to the next estimate, and none is covered by the shrinking design contingency unless the board accepts it within that allowance.

What the Board Should Take From It

Two points matter. First, scope grew: the kitchen and the engineers' changes added more than the panel switch and the smaller wall area saved. Second, the allowances that offset that growth will keep falling, to 3 percent design contingency at construction documents and to zero at bid, so they cannot absorb much more. Further scope additions will show up in the total.

What this part is doingClosing on what the allowances can no longer absorb gives the board a reason to control scope now.

References

AACE International. (2020). Cost estimate classification system: As applied for the building and general construction industries (Recommended Practice No. 56R-08). AACE International.

Holm, L., Schaufelberger, J. E., Griffin, D., & Cole, T. (2005). Construction cost estimating: Process and practices. Pearson Prentice Hall.

Odeck, J. (2004). Cost overruns in road construction: What are their sizes and determinants? Transport Policy, 11(1), 43-53. https://doi.org/10.1016/S0967-070X(03)00017-9

What the MT382 Unit 8 assignment asks for

Unit 8 asks students to reconcile two estimates of the same project and explain every difference. The reconciliation is usually presented as a bridge from the earlier total to the later one. Instructors expect changes to be sorted by cause, such as owner scope, design decisions, measurement and market prices, before they are summed. Markups on changed cost should be shown. Allowance changes should be separated into their parts, for example a planned reduction in rate and a change in base. The bridge must reconcile to the dollar. Students should draw a conclusion the board can use, and list items raised in design but not yet priced so they are not lost.

How the MT 382 Unit 8 example is put together

The sample explains why a bridge is needed rather than a replaced total, citing Holm and colleagues. Direct changes are listed by cause, owner scope first, then design decisions, measurement and market. Markups are shown, under a highlighted line about growth masked by shrinking allowances. Design contingency is split in two and escalation three ways, with each part explained. Construction contingency follows. The reconciled bridge is summarized and Odeck's findings explain the stakes. A section records the new estimate class under AACE's scheme, another lists three unpriced items, and the conclusion tells the board that allowances can no longer absorb much more scope, which makes this the moment to decide on the kitchen.

Where the points sit in the MT382 Unit 8 rubric

Reconciliations are usually marked on completeness, correct classification of changes, accurate treatment of allowances and a useful conclusion. A bridge that reconciles to the dollar earns the basic marks. Rubrics reward sorting changes so the board can see which it controls. Splitting allowance changes into rate and base effects shows analytical depth. Identifying that planned allowance reductions masked scope growth is the insight graders look for. Listing unpriced items shows foresight. A conclusion framed as a decision for the board demonstrates purpose. Cited work appears in APA 7, the waterfall chart and the table tell the same story, and each bridge line carries a short label a board member can repeat.

MT382 Unit 8 help: mistakes that cost points

Reconciliations often list the old total and the new one with a sentence about design development, which explains nothing. Others list changes without sorting them, so owner decisions and market movements look the same. A frequent mistake is treating the planned drop in design contingency as a saving the team earned. Escalation changes are rarely split, hiding the effect of a new price date or bid date. Unpriced design comments are usually forgotten until the next estimate, when they arrive as a surprise. Before submitting, start from the old total and add each line in turn. If you do not land exactly on the new total, a change is missing or double counted.

Get an MT382 Unit 8 example written to your instructions

Two estimates and the changes between them are what this unit works from. Attach both from your Unit 8 prompt, whatever design notes explain the difference, and the rubric. Within 24-48h a first reconciliation comes back at no cost, bridging one total to the other line by line, with scope, quantity, price and allowances separated and the arithmetic closed to the dollar. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.

More MT382 papers and BS in Business Administration samples

MT382 Unit 8 questions, answered

What is an estimate bridge?

A table that starts with an earlier estimate's total, lists every change in turn with its amount and cause, and ends exactly at the later total. Some present it as a waterfall chart. Its value is that nothing moves without an explanation, so a reader can see which changes were chosen, which were discovered and which came from the market.

In what order should changes be listed?

By cause, commonly owner scope first, then design decisions, quantity refinements and price movement, with markups and allowances last because they respond to the changes above them. Your course may prescribe a sequence. Whatever order you use, keep it consistent so two reconciliations on the same project can be compared.

Why would escalation fall when the schedule slipped?

Because the later estimate is priced in later dollars, so fewer months remain until the construction midpoint. A slip adds months back, and the net can go either way. Splitting escalation into the estimate-date effect and the slip effect, as the sample does, stops a reader from assuming prices somehow fell.

Where can I find a free MT382 Unit 8 sample paper?

This page holds the complete MT382 Unit 8 estimate reconciliation, bridging a recreation center from 17,176,118 to 17,083,915 dollars.

Why does the MT382 Unit 8 sample say the lower total hides rising cost?

Direct cost rose by 514,300 dollars, but design contingency and escalation were always scheduled to fall, and their drop more than offset the growth.