Drywall by code, floors, paint and real interior doors

Every wall gets the drywall the code asks for — ½″, moisture-resistant in wet rooms, ⅝″ Type X at the shop — every room its floor and colour, every window its trim, and every interior door is a real door you open with E.

The operating system built exclusively for post-frame and barndominium builders.

Part of The Design Studio
The short answer

What drywall goes between the shop and the house in a barndominium?

The wall between an attached garage or shop and the house gets gypsum board on the garage side to separate the two — our floor plan draws ⅝″ Type X on the shop side (IRC R302.6), moisture-resistant board in baths, laundry and mudroom (R702.3.7) and ½″ elsewhere, and lists each room's board and section. Your building department confirms the local rule.

Why it works
What it is

Inside the house in 3D, every interior wall is finished on both faces and the outside walls of finished rooms on the room side, while the shop keeps its framing. Each face knows its board: ½″ in dry rooms, moisture-resistant in baths, laundry and mudroom (IRC R702.3.7), ⅝″ Type X on the shop side of the wall between the shop and the house (IRC R302.6), and the garage ceiling board R302.6 asks for — the same rule the estimate counts drywall with, so nothing re-priced. The room panel lists the drywall each room gets and the section behind it. Floors you can tell apart at real size: LVP planks, 12×24 tile on a ⅓ offset, carpet, hardwood strip, sealed concrete with saw cuts every 10′, polished concrete (a new priced finish — set your price) and epoxy flake. Colour and trim: each room type gets its own paint — bedrooms light grey, baths sea mist, laundry soft sage, living space greige — with white ceilings, baseboard, door casing, and window casing with returns, stool and apron; with Room wall colours on, pick any room's colour from a chart (colour never changes price). Real interior doors at the plan's size, hinge and swing: flat slab, shaker, raised panel, half-glass and French, barn with its track, pocket, bifold and pairs, with levers, knobs or pulls in the chosen finish. In Walk, aim at a door and press E to open it — the nearer door wins, so you never open the front door through a bedroom wall. Built exclusively for post-frame and barndominium builders, where the shop and the house share a wall.

Also called: drywall type x garage · moisture resistant drywall bathroom · garage fire separation drywall · interior paint colours 3d · LVP flooring · polished concrete floor · interior doors 3d · shaker interior door · barn door · pocket door · window trim casing · barndominium interior finishes

See it, piece by piece
01

Floors you can tell apart

LVP planks 7″×48″, 12×24 tile on a ⅓ offset, carpet, hardwood strip, sealed concrete with saw cuts every 10′, polished concrete and epoxy flake — at their real size. The defaults are what they always were: tile in wet rooms, LVP in living space, sealed concrete in the shop.

The house with the roof off: LVP through the living space, tile in the baths and laundry, sealed concrete in the shop, every room its own wall colour
Roof off: each room its floor and colour. Real screen · sample data.
Without it

Every wall, floor and ceiling was the same grey-white.

Why we built it

The house reads as rooms, not a grey box.

Sound familiar?“what drywall between garage and house”
02

The drywall the code asks for, room by room

Select a room and its Drywall says what it gets: ½″ moisture-resistant in a bathroom (IRC R702.3.7), sag-resistant board on the ceiling, how many feet of wall — the same rule the estimate counts with. See the code index.

A bathroom selected: tile floor, painted drywall, ½-inch moisture-resistant drywall on the walls (IRC R702.3.7), sag-resistant ceiling board, and its wall colour
A bathroom's drywall with its sections, and its wall colour. Real screen · sample data.
Without it

Wet-room board was a line in the estimate nobody could see.

Why we built it

The 3D, the takeoff and the inspector agree.

03

Type X where the shop meets the house

The shop side of the separation wall is hung, taped, unpainted ⅝″ Type X — and the concrete shows its saw cuts.

The shop side of the house wall: taped, unpainted ⅝-inch Type X board and saw-cut concrete
The shop side: taped ⅝″ Type X and saw-cut concrete. Real screen · sample data.
Without it

The garage-to-house separation was a note somebody had to remember.

Why we built it

The fire separation is visible, so it isn't forgotten.

Sound familiar?“type x drywall barndominium shop wall”
04

Windows trimmed out

Drywall holes sit at the real sill and head, so no header framing shows over a window, and each window gets casing with returns, a stool and an apron.

A bedroom's outside wall finished in drywall, the window trimmed with casing, returns, stool and apron
A bedroom window trimmed with casing, stool and apron. Real screen · sample data.
Without it

Outside walls of bedrooms showed bare yellow batts and framing.

Why we built it

It looks finished because it is finished.

Sound familiar?“moisture resistant drywall in bathroom code”
05

Clean over the sink

The kitchen window over the sink: casing, stool and apron, nothing above it but wall — the kitchen layouts keep the uppers clear of it.

The kitchen window over the sink: casing, a stool and an apron, no framing showing above it
The window over the sink, trimmed. Real screen · sample data.
Without it

Window heads showed framing through the finish.

Why we built it

The view the customer will have every day.

Sound familiar?“show the customer paint colours”
06

Real interior doors, opened with E

Flat slab, shaker, raised panel, half-glass and French, barn with its track, pocket, bifold and pairs — at the plan's size, hinge side and swing, with hardware in the chosen finish. In Walk, aim at a door and press E.

A stained shaker door to the primary bedroom, shut, with the E to open chip
A stained shaker door, shut, with the E to open chip. Real screen · sample data.
Without it

Every interior doorway was an empty gap.

Why we built it

Walking through a house means opening its doors.

Sound familiar?“polished concrete floors in a barndominium”
07

The nearer door wins

E opens the door you're looking at — the nearer one — and only a door you can actually see, never one behind a wall or the steel. In Orbit, closed doors stand slightly ajar so you can see into the rooms from above.

The same door opened with E: the slab swings on its hinges, its lever in brushed brass
The same door opened with E. Real screen · sample data.
Without it

A walk-through that opens the wrong door feels like a toy.

Why we built it

It behaves like the house will.

08

Smooth walls, nothing showing through

Framing behind finished drywall isn't drawn at all, so no stud lines show through the paint — while the unfinished shop and the space above the ceiling still show their framing.

The great room at eye height: smooth painted drywall with no studs showing through, the windows trimmed, the living room furnished
The great room at eye height, the walls smooth. Real screen · sample data.
Without it

Faint stud lines showed through the drywall.

Why we built it

A finished room looks finished.

Sound familiar?“interior door styles”
09

Room to room

Through an open door into the mudroom — the French doors beyond, the washer, trim at every opening.

Through an open door into the mudroom: French doors beyond, the washer and the trim at every opening
Through an open door into the mudroom. Real screen · sample data.
Without it

Rooms that didn't connect in 3D.

Why we built it

The customer walks the house before it's built.

How it works
  1. 1Open the 3D view with the interior on and choose Walk; finished rooms show their drywall, floors, ceilings and trim.
  2. 2Select a room on the floor plan to read its Drywall — which board, how much, and the code section.
  3. 3Turn on Room wall colours in Settings → Beta features to pick a wall colour per room; without it each room takes its type's colour.
  4. 4Change a room's Floor, Walls, Ceiling or Base trim in its panel; the 3D follows.
  5. 5In Walk, aim at an interior door and press E (tap the chip on a phone) to open or close it.
Why we built it

Walking a customer through a house of bare yellow batts and empty door openings doesn't sell a house — and in a barndominium the finish is also where the code lives: the garage has to be separated from the dwelling, and wet rooms need the right board. Drawing the drywall the code asks for, from the same rule the estimate counts, means the 3D house, the takeoff and the inspector all agree.

The problem
  • Walls that showed bare batts in finished rooms
  • Door openings drawn as empty gaps
  • Garage separation board remembered on site
  • Every room the same grey
What you get
Drywall by code on every face, from the estimate's own rule
The code section in each room's panel
Seven floor finishes at real size
A colour per room type, or your own
Window casing, stool and apron
Real interior doors that open with E
Nothing re-priced
3D BUILDING DESIGNER

See drywall by code, floors, paint and real interior doors
on one of your own jobs.

Thirty minutes with Keith — your building, your numbers. Bring the job where “what drywall between garage and house” — we will show you exactly where that stops.

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The house with the roof off: LVP through the living space, tile in the baths and laundry, sealed concrete in the shop, every room its own wall colour