Construction Gantt Chart Template

Construction schedules fail in public. Everyone on site knows when the drywall crew arrives to a building that isn't weathertight, and everyone in the client meeting knows when the handover date moves for the third time. This template is built around the sequence that actually governs a build, nested three lanes deep where the real trade dependencies live, and around making the consequences of a slip visible before they happen rather than after.

Who this construction schedule template is for

This is for a project manager, site supervisor, or owner's representative who needs to show a build programme to someone who isn't on site every day: a client, a lender, a board, a tenant waiting on a handover date.

It assumes a single building or fit-out with a conventional sequence, an eleven-month-ish programme, and an audience that cares about phases and dates rather than daily crew allocation. It's not a replacement for a scheduling package with resource levelling across a portfolio. It's the chart that goes in the monthly report.

What are the phases of a construction schedule?

Six top-level lanes, two of them nested.

Site & Permitting covers the site survey, a geotechnical report running alongside it, and permit approval. Both the survey and the report start before the chart's zero point, because permitting typically overlaps site investigation rather than following it.

Earthworks covers grading and excavation, with erosion control starting alongside it, then utility rough-in.

Structure splits into Foundation (footings and the foundation pour) and Superstructure, itself split into Steel Erection and Concrete Pours. This is the phase with the project's most rigid dependencies: you cannot negotiate your way to steel before footings.

MEP & Envelope covers the building envelope and roofing, HVAC equipment install, and mechanical, electrical, and plumbing rough-in.

Interior Fit-Out splits into Rough-In (low-voltage and data) and Finishes (drywall and taping, plus exterior hardscaping running the length of the phase).

Handover covers the punch list walkthrough, commissioning and testing, final inspections, and owner training.

How long does each construction phase take?

Site & Permitting runs about three weeks, closing when permits are approved. Earthworks runs about seven weeks. Structure is the longest single-trade phase at roughly fifteen weeks; footings alone take about five weeks. MEP & Envelope runs about eleven and a half weeks, and Interior Fit-Out is the longest phase overall at roughly seventeen weeks once the hardscaping bar running the length of it is counted. Handover closes the programme in about six weeks.

That last figure is worth defending in a client meeting: punch list, commissioning, and final inspection together still take over five weeks, not the few days a schedule under pressure tends to compress them to. Showing handover at realistic length is the most useful thing this chart does for a client conversation, because it's the phase clients most consistently assume is nearly instant.

Which dependencies matter on a build programme?

Seventeen links, and unlike most project charts, most of them are physical constraints rather than organisational ones.

The hard chain is finish-to-start through the structure phase: utilities finish then footings start; footings finish then steel starts; the envelope finishes then mechanical, electrical, and plumbing rough-in all start. None of these are negotiable: concrete cures on its own schedule.

Five links are start-to-start, and two are worth pointing at directly. The geotechnical report starts alongside the site survey rather than after it, well before the survey itself finishes, because soil investigation doesn't wait on a completed survey report. And low-voltage rough-in starts before electrical rough-in finishes, not after it, because the two trades share the same ceiling void and coordinate directly rather than queuing.

One link is start-to-finish: HVAC equipment install's completion is tied to when the building envelope starts, not to the envelope's own finish date. There has to be a weathertight-in-progress structure before HVAC can be signed off, but the crew doesn't wait for roofing to be entirely done.

GanttFlow does not calculate or verify a critical path, so confirm which chain actually controls your handover date before you present it.

What to change for your own build

Common mistakes on construction Gantt charts

Serialising every trade. It produces a programme that's technically defensible and practically useless, because the site won't be run that way and everyone knows it.

No weathertight milestone. It's the single most consequential date in the middle of a build, it gates every interior trade, and it's frequently absent from the client-facing chart.

A one-week punch list. Consistently the most under-scheduled phase in construction, and the one that determines whether handover is on time.

Rebuilding the programme after each delay. Drag the bars instead and keep the baseline. A client who can see a variance label against a saved baseline is a client having a different conversation than one handed a fresh chart with new dates every time.

Day-level detail on an eleven-month chart. Zoom the timescale out to weeks or months. At day resolution a programme this long is a wall of slivers.

Getting the programme in front of people

Site programmes get printed, pinned up, emailed to subcontractors, and attached to draw requests. Export a PDF at whatever zoom level suits the audience: months for the client report, weeks for the trade coordination meeting, and re-export whenever the bars move. Nobody receiving it needs an account or a login to open it.