Tiny Cottage in the Woods: A Complete Off-Grid Bunkie Build in Ontario

Drew Builds Stuff is one of those channels that makes you want to grab a coffee, put on headphones, and just sink into the build—calm narration, crisp ASMR tool sounds, and projects that swing from tiny homes to clever furniture without ever feeling out of reach. What keeps returning viewers hooked is the mix of pro-level finish and down-to-earth process: clear steps, tidy detailing, and those satisfying moments when a tricky idea clicks into place. He shares tool lists, plans, and updates through his site and socials, which makes it easy to follow along and actually try the projects rather than just admire them.

This may be the best build yet

If small, smart, and scenic is your thing, this full DIY tiny cottage build delivers a masterclass in compact offgrid construction. From bedrock footings to a standing seam metal roof and a seamless indoor outdoor flow via a 9′ accordion door. The 107 sq ft footprint is intentionally under Ontario’s building-permit threshold, making it a legal “bunkie” that feels far bigger thanks to thoughtful design and a deck that blends into natural granite outcrops.-–

Site and foundation

See the original video for info about the land

Set on 40 acres of wilderness in Ontario’s cottage country, the build starts with scouting a bedrock building spot and laying out a 9’8″ x 11′ rectangle to map six footings. With only a few inches to a foot of soil over granite, the builder drills into the rock with an SDS bit, injects anchoring epoxy, and hammers in rebar pins to lock each pier. Concrete form tubes are set over the anchors, filled with bagged concrete, and topped with galvanized 6×6 post bases—delivering compressive strength from concrete and lateral resistance from rebar-to-rock ties. Posts are cut level by laser at dusk for visibility, then beam hangers accept triple-laminated 2×6 beams secured with framing nails and lag screws.-

Floor framing and insulated deck

The frame mixes aesthetics and value: cedar 2×6 for exposed perimeter, pressure-treated 2×6 for joists, with blocking for stiffness. Hurricane straps and truss screws tie joists to beams against uplift. The floor bays receive a rodent-resistant closure, drain holes, and a hybrid insulation assembly: 2″ rigid foam + spray foam perimeter coat + another 2″ rigid layer, targeting roughly R-25 before a glued and screwed 3/4″ T&G plywood subfloor. It’s a tidy, warm platform that shrugs off wind and wildlife.-

Wall framing and the big opening

Walls use standard 2×4 studs with pressure-treated bottom plates, and a beefed-up LVL header for the massive 9′ three-panel bi-fold front door. The crew stands walls with expanding foam under plates, locks them together with screws and lag bolts, straps and ratchets them plumb, and adds a double top plate, dormer framing, and gable ends. Half-inch plywood sheathing with dense nailing schedules provides shear strength, keeping the little structure laser-square.-

Roof geometry and rafter craft

A 37° roof pitch defines the structure, with a site-built double 2×8 ridge beam and bracketed rafter connections for quick, safe installation. One carefully template rafter becomes the production pattern. Overhangs are scribed and cut consistently by temporarily hanging and marking before final fixing—an efficient way to maintain clean eaves lines solo. The fascia incorporates planned overhang extensions, with additional rafters added to complete tapered front detailing that adds character without bulk.-

Weatherproofing done right

The shell gets wrapped with overlapping housewrap courses, then the roof sheathing is covered in peel-and-stick ice and water membrane—fully waterproof on its own and a perfect substrate for metal roofing. Strategic flashing tape detailing at the giant door and windows protects sills and integrates with wrap shingle-style: bottoms first, sides next, tops last. This detail discipline is a quiet hero of any long-lasting tiny structure in a pine-needle, four-season climate.-

The 9′ accordion door: small space, big feel

The star of the show is the 9′ tri-panel bi-fold door that collapses to one side, erasing the line between cabin and deck. It’s a splurge, but it floods the 107 sq ft interior with light, turns the deck into a living room, and makes the whole project feel like a lakeside pavilion. Flashing, sill prep, and nailing-fin installation make it weather-tight and future-siding-friendly. For tiny footprints, this kind of opening is the ultimate space multiplier.-

Deck blended into bedrock

The deck is a structural and aesthetic triumph: pressure-treated framing capped with cedar, and deck boards fastened with a hidden Camo jig. The standout technique is scribing the framing and boards to the undulating granite, cutting a “live edge” fit that keys the deck into the rock. Posts are custom-shaped to hug the stone, set with construction adhesive to mold the interface, and mechanically anchored to bedrock with tapcons and brackets to tame wind uplift. The result looks organic and sits solid. A Rubio DuroGrit “Rocky Umber” stain unifies fascia, soffit, and deck into the forest palette.-

Soffit, lighting, and ventilation

Cedar tongue-and-groove soffits, pre-stained to match, hide fixings and house low-profile 3″ gimbal LEDs that can aim down a 37° slope. For a future rockwool-insulated roof, the builder drills intake vents in lower soffit boards, staples insect mesh on the backside, and caps the holes with neat 3D-printed plugs—feeding a planned ridge exhaust path. A stained cedar beam at the ridge and careful caulking keep bugs out and lines crisp.-

Windows that work with siding

The windows, ordered to spec with integrated nailing fins and brickmould profiles that accept siding returns, are installed over sill flashing and sealed shingle-style with tape and housewrap flaps. The method ensures any incidental water drains to daylight, not into framing—critical for off-grid cabins that see driving rain, snowmelt, and seasonal movement.-

Metal roof: pine-needle proof and long-life

In a pine forest, metal beats shingles: needles slide right off the steep standing-seam roof, and the underlay is already watertight. Trim goes on first—drip edge, F-trim at gables, and wall starters—then panels are prepped by cutting, bending ribs closed, and forming hems to lock into trim. The trickiest piece is the tapered front panel, cut and bent to match the pointed fascia. With a roofer friend on hand, installation is fast, safe, and clean—setting up decades of low-maintenance performance.-

Why this tiny build works

• Legal and lean: At 107 sq ft, it avoids permit burdens while delivering a “cottage-grade” feel through material and detail choices.-
• Indoor-outdoor living: The big bi-fold door and bedrock-hugging deck triple perceived space and immerse you in nature.-
• Climate-savvy envelope: Air-sealed floor, vented roof plan, shingle-style flashing, and full-coverage membrane anticipate real weather.-
• Craft where it counts: Scribed deck, tapered fascia, and clean soffit details elevate a simple form into a place you want to be.-

For builders eyeing a similar project, this video is a template for doing small right: design to your site, obsess over water management, use structure-first thinking on rock, and spend where experience matters—light, views, and weatherproofing. Drew’s channel has more builds, tool links, and often shares plans and 3D models to help DIYers translate inspiration into reality.

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