SIP Collection

Little Twig 400 SIP

Our best seller. Engineered panels, an R-40 roof, and stamped drawings in the crate.

$54,750$53,750 with your $1,000 credit

Base kit price. Freight and sales tax depend on where your land is, so every order starts with a written proposal that includes both.

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The details

400

sq ft main floor

+200

sq ft balcony loft

20′×20′

footprint

sleeps up to

R-26 / R-40

walls / roof

Included

stamped drawings

All kits

The same twenty-by-twenty plan as the cedar, built out of structural insulated panels instead of logs — a foam core bonded between two skins, cut and numbered at the mill.

One bedroom, a full bath, an open kitchen and living room, and two hundred square feet of loft above. R-26 in the walls, R-40 over your head.

It’s our best seller for a reason: it goes up faster than the cedar, costs less to heat, and lands $7,400 cheaper.

Blue Ridge overlook

Floor plans

Main floor and balcony loft.

Main Floor · 400 sq ft

In the plan

Bedroom with a walk-in closet
Full bath — corner shower, vanity, and WC
Open kitchen and living beneath the loft
Washer/dryer closet, refrigerator bay, and range
200 sq ft balcony loft, open to the living room below
Same 20′×20′ plan as the 400 Cedar Log
Loft access (ladder or stair) sized to your layout, by others

Construction

How it’s built.

A structural insulated panel arrives as a finished wall: rigid foam bonded between two structural skins, pre-cut and numbered to the drawings. There are no studs to insulate around, which is where the R-values come from — and why a SIP shell closes in faster than a stick frame.

R-26 walls / R-40 roof

Continuous foam core — no thermal bridging through framing

Pre-cut and labeled

Panels arrive numbered to the panel drawings

Metal roof, siding, and trim

Twenty curated colors, chosen by you

Stamped drawings included

Permit-ready panel drawings ship with the kit for most areas

Any foundation

Slab, pilings, or full basement

Cold-climate option

Northern Version

Upgraded SIP package for cold climates and heavier snow loads.

R-29 wall panelsThicker SIP walls tuned for cold-climate performance.
R-57 roof systemHigh-performance SIP roof panels for snow-load regions.

R-33 SIP floor system available as an additional option.

Colors

Choose your colors.

The plan is fixed — that’s what keeps the price honest and the lead time short. The metal is not. Roof, siding, and trim each come from the mill’s twenty-color palette.

Metal roof — 20 colors

Black34

Metal siding — 20 colors

Brite White04

Metal trim — 20 colors

Black34

Window frames

Andersen 100 Series, with screens. Frame colors are chosen during the order process — white, sandtone, terratone, and dark bronze are the usual suspects.

Your 400 SIP

Black roof

Brite White siding

Black trim

What’s included

What’s in the crate, and what isn’t.

In the crate

Pre-cut, labeled SIP panels — R-26 walls, R-40 roof
Andersen 100 Series windows & doors with screens
Metal roofing, siding, and trim in your chosen colors
Interior loft and partition framing
Fasteners, adhesives, sealants, and underlayment
Stamped engineered panel drawings — included for most areas
Step-by-step instructions and ongoing support

On you (or your builder)

Foundation — slab, pilings, or basement
Interior doors
Loft access — ladder or stair, by others
Site prep, permitting, and assembly labor
Plumbing, electrical, HVAC, and interior finishes

Northern version available: R-29 walls / R-57 roof for cold climates and snow loads. Ask when you request a quote.

Plan the whole build, with your own numbers.List the land, site work, foundation, and finishes beside the kit price, and see the total before you commit.Open the cost planner

Questions

SIP questions.

Everything specific to the 400 SIP. Full FAQ →

A structural insulated panel — a rigid foam core bonded between two structural skins. It’s wall, insulation, and sheathing in one piece, delivered pre-cut and numbered to the drawings.

SIP for thermal performance and price: R-26 walls, R-40 roof, stamped drawings included, and $7,400 less. Cedar log for the look and feel of solid wood, and walls that finish themselves. Both raise on the same 20′×20′ footprint.

Yes — for most areas. That’s a real difference from the log kits, where stamped drawings are an added cost. Your local building department has the final say on what they’ll accept.

The standard kit is R-26 walls / R-40 roof. A Northern version is available at R-29 walls / R-57 roof for heavier snow loads and colder winters.

It’s 200 sq ft of open balcony loft, framed as part of the kit. The access — ladder or stair — is by others, so you can place it where your layout wants it.

Other models