Simplified 4D for shared sites
See the clash before the site does.
Draw your site, give each project's work zones dates, and scrub through time. When two projects claim the same ground on the same days, Laydown Plan flags it, and keeps it flagged until someone moves a zone or writes down why it's fine.
Free for one site. Viewers and contractors are always free.
The problems this is built for
- Two contractors book the same laydown area for the same week, and someone pays for the delay.
- The logistics plan is a slide that was out of date the day it was sent.
- A night possession overlaps another project's crane pick, and nobody sees it until the morning.
- Tenants and operations hear about the road closure after it has started.
Try it. No sign-up.
This is the real plan, timeline, and clash check, with a sample station. Drag the green laydown away from the blue one, or scrub the timeline to watch the site change.
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How it works
Laydown Plan is a simplified 4D schedule for shared construction sites: you draw the site, shade each project's work zones with start and end dates, and it flags any two projects that claim the same ground on the same days.
1. Draw the site
Start from a template for a transit station, hospital, school, airport, or mid-rise, or sketch buildings, roads, fences, and gates in a few minutes. On Pro, upload your real drawings and calibrate them to scale.
2. Phase the work
Each project shades the ground it needs, with dates. Scrub the timeline, or press Play to watch the site change week by week. That's the simplified 4D schedule: a plan per level, plus time.
3. Share it
Send a read-only link to contractors, tenants, and operations staff. Contractors can request ground, and you approve it. Clashes are caught before anyone mobilizes.
Built for the people who keep shared sites running
Simple pricing, per site
Free
$0
One site, drawn plans, share it with anyone.
Pro
$79 /mo
For the person coordinating a busy site.
Team
$249 /mo
For campuses and programs with many sites.
Draw your first site in ten minutes
Free for one site, with unlimited viewers. Start from a template and see a clash in the first minute.