Floor planning for venues, planners, and vendors

Transforming event floor planning software.

Seamlessly plan, design, and collaborate between venues, caterers, planners, vendors, and clients with the industry’s most comprehensive event floor plan software.

At Prismm (formerly Allseated), we help you revolutionize how events are planned, designed, and executed. By combining advanced technology with a user-friendly event floor plan, we put more time back into your day so you can focus on dazzling your customers.

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Floor planning software screenshot from the Prismm platform.

What sets the Prismm platform apart?

Collaboration and control? Yes.

The Prismm event space planning tool makes collaboration effortless. Experience real-time editing, instant communication, and engaging 3D virtual tours of your floor plan designs. With integrated collaboration tools for all types of event spaces, our floor plan maker ensures that every stunning detail aligns perfectly with your creative vision. Set custom permissions to manage visibility and invite your vendors into the planning process for flawless event execution.

A man and a woman sit together at a desk, looking at a laptop. A person sitting across from them has their hand visible, gesturing. A plant and a window are in the background.

Share your floor plans in one click

Collaborate in dynamic 3d with a shareable link. Event sales, planners, and event hosts can instantly access virtual tours, plans, and designs from within the Prismm platform. Our event floor plan software allows you to showcase rich media, adjust linen colors on the fly, and manage last-minute RSVPs – all without leaving the page. It’s like walking through your event space, minus the heavy lifting.

A woman is smiling while she receives an in-depth onboarding experience from a customer success expert.

Capture feedback from anyone, anytime

Our smart interface puts an end to communication chaos. Hop on video calls, reshape designs in real-time, and collect insights on the spot. Prismm’s event floor plan tool keeps your crew in lockstep, transforming bright ideas into jaw-dropping events. Clear, quick, and always on point—that’s how we roll.

Phone a friend

Event planning made social. Bring your inner circle into the process—family, friends, or key players—and let them join your account free of charge. Our drag-and-drop tools make collaboration a breeze, opening up the floor for everyone’s input. From guest lists to seating charts, get the help you need right in our event floor plan program. Planning perfection, served up effortlessly.

Scale quickly with predefined floor plan layouts

Hit the ground running with our extensive library of event floor plans. Chances are, your chosen space is already in our system, thanks to past Prismm users. Stumbled upon the perfect template? Great! Not quite right? No sweat—customize it to match your vision. With our venue floor plan creator, your dream event is just a few clicks away.

If an event layout isn’t already in Prismm, it takes just three easy steps to upload it to the platform:

1. Venue name and address
2. Event space dimensions
3. Perimeter walls

That’s all we need. For 3D scanning, start early – it should be your first move after venue selection.

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An image compares a bird's eye view of a 3D model with a 2D floor plan of the same space.

2D and dynamic 3D views of your floor plans

Flip between 2D and 3D views at will. Soar over your layout from above, step into a 3D digital twin, or fine-tune details in 2D. Switch views instantly, keeping your planning agile and inspired. With Prismm’s event floor plan designer, you’re always seeing things from the perfect angle.

Diagram in dynamic 3D

Design your tabletops in realistic 3D

Event jitters? We get it. That’s why our event planning floor plan designer comes with built-in peace of mind. Attach timelines to each plan, keeping everyone—from vendors to caterers—in sync. Invite your whole crew to collaborate on setup, execution, and breakdown. With Prismm, your event stays on course from start to finish.

Design table tops

Keep everything on schedule.

Do you get nightmares about your event going off the rails? Hey, we’ve all been there. The Prismm platform can give you peace of mind that everyone involved with your event can be kept on track with timelines attached to each floor plan. Invite vendors, suppliers, caterers, and other key personnel essential to your day-of operations to collaborate on all event details from set-up to breakdown.

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(Actually) useful event reports

Forget useless data dumps. Our reports cut to the chase, giving you exactly what you need. Customize guest lists, floor plans, and more with a few clicks. Share these gems with vendors to nail every detail. Your floor plan report ensures the perfect layout and seating arrangement—no surprises on event day.

Day-of crews and venues will love our comprehensive floor plan reports. They cover it all: layouts, inventory, table breakdowns, and seating charts. Need more? Whip up a guest report with meal choices, table numbers, and other must-knows for your caterers. These reports do double duty—use them for everything from invitations to personalized party favors. With our event floor plan app, you get one report and endless possibilities.

Showcase your space for instant connection

Venues, prepare to dazzle from afar. Our dynamic 3D event floor plan software transports potential clients right into your space, letting them explore every design element as if they were there. Host virtual tours that bring your whole team together (no travel required), and share your masterpiece with a single link, accessible worldwide.

Gather feedback with in-tour comments
Train your team remotely
Conduct remote sales
Streamline operations from top to bottom
Turn floor planning into a team sport

Each feature builds on the last, creating a seamless experience that elevates your venue’s presence and efficiency.

Best-in-class customer service. Period.

24/7 live chat

Support center

Private demos

ENHANCE YOUR LEAD CAPTURE INTELLIGENCE

“

Allseated (now Prismm Platform) is an invaluable tool for our floorplan process. Our customers are impressed with the ease of use and how seamless the communication is between client and planner.”

Mazzone Hospitality