Floor Plan Editor for Prefab Homes: A Step-by-Step Guide

In short: The floor plan editor in the prefab home configurator lets you drag and resize rooms, add new rooms, add or remove doors and windows, move furniture, place the front door and build a second floor with stairs, with the result shown in 3D instantly.

The floor plan editor in the prefab home configurator is where a house stops being a catalog model and becomes the buyer's own: rooms get dragged around, made bigger or smaller, doors and windows go where they're needed, furniture moves, and, if you want, a second floor with stairs gets added. Every change shows up in 3D right away. This guide walks through each tool in the order that makes sense to use them.

Opening it and what you see

In the home configurator, the house is first put together from blocks: how many bedrooms, bathrooms, kitchen, living room, laundry. From that, the system lays out a floor plan on its own. The Edit floor plan button opens the editor, which shows the house from above with rooms, walls, openings and furniture, plus dimensions so you know how big everything is.

If you ever want to start over, there's an option to go back to the automatic layout. Undo and redo are always within reach, so you can experiment freely.

Step 1: arrange the rooms

Layout comes first.

1. Tap a room to select it.
2. Drag it to move it somewhere else in the house.
3. Use the orange dots on the edges to make it bigger or smaller.
4. If a room is missing, add it: it appears next to the house and you drag it into place.

You can also duplicate a room (handy for a second bedroom that matches the first) or rotate it 90°. A typical case: a two-bedroom home where the buyer wants the living room at the back, facing the yard, and the kitchen at the front. Move two blocks and you're done.

Step 2: doors, windows and the front door

With the rooms in place, tap a wall. From there you can add or remove a door, a window, an open passage, or the whole wall (to open up the kitchen to the living room, for example).

A few rules the editor follows on its own:

• An outside wall can't be removed, because it closes the house. You can add windows to it.
• Openings slide when you drag them along the wall.
• The front door can slide along its wall, or move to another outside wall by tapping that wall.

The editor flags in red anything that needs fixing: a room with no way out, furniture blocking a door. It's the digital version of an architect looking at a sketch and saying "you can't get into that bathroom."

Step 3: furniture

The furniture is real: bathroom, kitchen, laundry, wardrobes, beds, nightstands, desks, coffee tables. It does more than decorate. It shows whether the room is big enough.

• Tap a piece to move, rotate or remove it.
• Drag it, even into another room.
• Add a new one: it goes into the selected room, or the largest one, in a free spot.

A 10 × 10 ft bedroom with a full bed and a wardrobe feels tight; at 12 × 12 ft a desk fits. That conversation usually happens over a printed plan and a lot of imagination. Here, you just look.

Step 4: second floor and stairs

If the home has an upper floor, you add the second floor and lay it out the same way: rooms, walls, openings, furniture. The stairs go on the ground floor, and whoever is building the house picks which way they climb, because landing in a hallway is very different from landing in the middle of a bedroom.

The editor warns you if something upstairs doesn't sit on the ground floor or if the stairs are missing. Those are the classic mistakes of anyone drawing a two-story house for the first time, and you want them to show up before the quote, not on the job site.

Step 5: see it in 3D

Every change in the editor shows up in the 3D view. Once you're out, it's worth:

• Walking through the house at eye level with Walk through (more in walking through a 3D configurator).
• Picking finishes: flat concrete roof, single-slope or gable metal roof; stucco and accent color; ceramic tile, porcelain or wood floors; brick, stone or wood siding. There's more in choosing colors and materials in 3D.
• Adding a porch, a pool and a fence (solid wall, wire fence or metal railings).
• Hitting Share to send the link to family or to the manufacturer.

What it does for a manufacturer

For the buyer, the editor is how they say "this is how I want it" without knowing how to draw. For a manufacturer of prefab, light steel framing or modular homes, it's something else: an inquiry that arrives with the floor plan already worked out. Your rep doesn't start from "I want something with two bedrooms." They start from a specific layout they can review, correct if it can't be built, and quote.

That changes how you sell by model. Instead of offering three fixed plans and explaining why a wall can't move, you offer a base the buyer adapts within rules you set. I go deeper in prefab home 3D quoting tool and steel frame and modular 3D quoting tool.

If you sell homes and want an editor like this with your modules, your sizes and your rules, it's built to fit. I'm Facundo Campo, and I build 3D configurators and quoting tools for manufacturers, working remotely from Buenos Aires, Argentina. Message me on WhatsApp at +54 9 11 6193-3176 or email facundocampo100@gmail.com (I answer in English and Spanish), or see how custom 3D quoting software projects work.

Frequently asked questions

Does the floor plan editor work on phones?

Yes, it works on phones and tablets by touch: tap to select, drag to move. On a computer you can also use the keyboard, for example to undo.

Can I remove any wall?

Interior walls, yes, to open up rooms. Outside walls, no, because they close the house; you can add windows and the front door to those.

Can the manufacturer limit what buyers can change?

In a custom build, yes. Minimum and maximum room sizes, allowed modules or walls that can't be touched are set from each manufacturer's building rules.

Does the editor show prices?

No. The public configurator doesn't show prices. Pricing is part of each manufacturer's custom build and can be kept for sales reps only.