Free Wedding Floor Plan Tool: Prismm Makes Seating & Layout Design a Breeze

Formerly AllSeated – Now Prismm!

This post was originally written as a guest feature by AllSeated and has been updated to reflect their exciting rebrand to Prismm.

Planning a wedding comes with plenty of moving parts – but few things are more visual (or more stressful) than figuring out how to seat your guests and design your reception layout. That’s why we LOVE this free tool that makes the process simple, collaborative, and even kind of fun.

Meet Prismm – a powerful, free floor‑planning tool that empowers couples and event pros to design beautiful 2D and 3D event layouts effortlessly!

What Is Prismm?

Prismm is a free, cloud-based floor planning software that was formerly known as AllSeated – a name that might already be familiar to wedding pros and couples alike.

This newly rebranded platform is built to serve:

Engaged couples planning weddings
Wedding coordinators and planners
Venues and event spaces
Caterers and event designers

With Prismm, you can create custom layouts, visualize floor plans, and assign guest seating – all in one user-friendly dashboard.

Why Prismm Is a Must-Have for Wedding Layouts

Whether you’re planning a black-tie ballroom wedding or a backyard celebration, Prismm gives you full control over the design of your event space.

Key features include:

Drag-and-drop tables, chairs, and décor elements into your layout
View your space in both 2D and realistic 3D renderings
Upload your guest list and assign seats with a few clicks
Collaborate with your wedding coordinator, venue, or partner in real-time
Access venue-specific templates or build a floor plan from scratch

It’s especially helpful for:

Designing socially distanced seating (if needed)
Planning vendor placement (DJ booth, photo booth, buffet, etc.)
Visually walking through how your space will feel day-of

Why We Recommend Prismm at Details Made Simple

As professional day-of wedding coordinators, we know that a well-organized floor plan is key to a smooth, stress-free wedding day.

We recommend Prismm to all our couples because:

It makes guest seating more intuitive
It helps us (your coordinator!) visualize the setup before we even arrive
It reduces last-minute layout confusion with venues or vendors
It’s 100% free and accessible from anywhere

We especially love when couples share their Prismm layout with us during their coordination meetings – it ensures we’re all working from the same game plan.

From AllSeated to Prismm: What Changed?

In early 2024, AllSeated officially rebranded as Prismm, expanding their platform’s capabilities and focusing even more on immersive, collaborative floor planning for events of all sizes.

“While the name may have changed, the mission hasn’t: to make spatial planning easier, more collaborative, and beautifully visualized.”

So if you were an AllSeated fan before, rest assured – Prismm still has the core features you loved, just with a sleeker, more powerful interface.

Start Designing Your Wedding Floor Plan Today

Ready to bring your seating chart and layout to life? Head over to Prismm.com to create a free account and start building your space in just minutes.

Whether you’re a visual person who needs to see it to believe it – or just want to keep all your seating and layout plans in one easy place – Prismm is the tool we recommend every time.

Want Help Getting Started with Prismm?

if you’re ready to dive into floor planning but want a little guidance, you’re in luck!

Prismm offers a library of free step-by-step tutorials that walk you through everything – from creating your layout to assigning seats, adjusting furniture, and collaborating with vendors.

👉 Click here to explore Prismm’s Floor Plan Tutorials

These videos are perfect if you’re:

New to Prismm and want a quick-start guide
Looking to get the most out of advanced features
A visual learner who likes to see how things work

We love pointing our couples to this page because it empowers you to build a layout with confidence – and makes our job easier when everything is clearly mapped out ahead of time!

Final Thoughts

Tools like Prismm are a reminder that wedding planning doesn’t have to be chaotic. Whether you’re deep in the details or just starting out, having a visual tool that keeps everything (and everyone!) in sync is invaluable.

💡 Pro Tip from DMS: If you’re working with one of our coordinators, share your Prismm seating chart with us before the big day – it helps us hit the ground running and ensures everything is executed exactly as you envisioned.