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The Yardistry greenhouse is the best-reviewed greenhouse at Costco: the 8x7 rates 4.6/5 on 1,033 reviews and the 8x10 4.6/5 on 615. You get a pre-stained cedar frame, double-wall polycarbonate windows, 32 in cedar base walls and an automatic roof vent at a price well below most cedar kits. The trade-offs: no published wind or snow rating, a 1-year warranty (5 years against rot), roughly two days of assembly, and yearly sealing. Great for mild and moderate climates. For heavy snow or year-round growing, look at the Outdoor Living Today cedar greenhouses at Eartheasy.
- 1No published wind or snow rating$800–$1,000typical, Oct 2026
- 2No published wind or snow rating$2,000typical, Oct 2026
- 3Best greenhouse-shedYardistry Obsidian Greenhouse + Shed
Proper wooden greenhouse and lockable tool shed under one roofline.
No published wind or snow rating$2,000typical, Oct 2026 - 4Best cedar upgradeOutdoor Living Today Cedar 8x8
Cedar greenhouse that looks like a garden building; ~2-day DIY assembly.
No published wind or snow rating$4,046typical, Oct 2026 - 5Best modern cedar alternativeBackyard Discovery 9x6 Willow
Modern sloped-roof cedar greenhouse with thicker 4-wall panels than most rivals.
Wind100 mph$1,999typical, Oct 2026
Yardistry is the wood-structure brand behind Costco's best-selling greenhouse. Search for "Yardistry greenhouse" and you mostly find Reddit threads, build videos and Costco reviews. Here's the full picture in one place: what the kits are, what owners say after building them, and when a different cedar greenhouse is worth the extra money.
Our verdict is based on Costco's owner ratings (with review counts), Yardistry's own product pages and manuals, and published owner feedback. We have not assembled a Yardistry ourselves. How we research.
Yardistry greenhouse models
| Model | Size | Where sold | Owner rating |
|---|---|---|---|
| Yardistry 8' x 7' Greenhouse (YM12842) | 6.7 x 7.8 ft, 7.7 ft peak | Costco | 4.6/5 (1,033) |
| Yardistry 8' x 10' Greenhouse (YM12854) | 8 x 9.7 ft, about 8 ft peak | Costco | 4.6/5 (615) |
| Obsidian Greenhouse & Storage Shed | 8.1 x 11.4 ft overall | Yardistry direct | No reviews captured |
Note the naming: Costco calls the smaller kit an "8x7", but the actual footprint is 6.7 x 7.8 ft. Yardistry's own site sells a 6.7 x 7.8 cedar garden greenhouse of the same dimensions.
What you get: the Yardistry cedar kits reviewed
Yardistry 8x7
This is the default Costco greenhouse. Yardistry's pages describe 100% FSC-certified cedar, pre-stained mocha brown, with double-wall polycarbonate windows, 32 in tongue-and-groove cedar base walls (which also double as a lower shelf area) and a heat-sensitive automatic roof vent. The 6 ft sidewalls give more headroom at the edges than the 6-ft-wide Palram kits. Costco owners rate it 4.6/5 on 1,033 reviews. House Digest's January 2025 summary of owner feedback calls it "almost entirely positive", with assembly time the main complaint.
Why it stands out
- Best owner rating on the biggest sample of any Costco greenhouse
- Automatic roof vent included
- Cedar base walls protect the lower glazing from mowers and kicks
Watch out for
- No published wind or snow rating
- Owners report about two days to build, not 10-12 hours
- Cedar needs a yearly water-based sealant
Full specs
- Sizes
- 7.8x6.7
- Footprint
- 6.7 x 7.8
- Peak height
- 7.7 ft
- Frame
- 100% FSC-certified wood, 32" high wood base walls
- Panels
- Double-wall polycarbonate windows
- Vents
- Heat-sensitive automatic roof vent opener
- Door
- Door opening 26.75" x 76.5"
Specs from costco.com, costco.com. Prices checked Oct 2026 and change often.
Yardistry 8x10
The same design scaled up to 8 x 9.7 ft with an 8 ft peak: room for benches on both long walls and a path between them. It rates 4.6/5 on 615 Costco reviews. It arrives curbside in boxes, and the base and assembly are on you. If you're deciding between the two, the 8x10 is the one with room for a real bench layout; our 8x10 greenhouse guide shows the layout to scale.
Why it stands out
- Room for a proper two-bench layout
- Same strong owner ratings as the 8x7
Watch out for
- No wind or snow rating
- A big price step from the 8x7
Full specs
- Sizes
- 8x9.7
- Footprint
- 8.0 x 9.7
- Peak height
- 8.06 ft
- Frame
- 100% FSC-certified wood, 32" high wood base walls
- Panels
- Double-wall polycarbonate windows
- Vents
- Heat-sensitive automatic roof vent opener
Specs from costco.com, costco.com. Prices checked Oct 2026 and change often.
Yardistry Obsidian Greenhouse + Shed
The Obsidian combines a greenhouse (7 x 5.3 ft inside) and a lockable storage room (7 x 3.8 ft) under one roofline, built from FSC-certified lumber with double-wall polycarbonate, a black aluminum roof on the storage side, front and rear doors with key locks and an automatic roof vent. Yardistry offers anchoring as a paid add-on service. Like the Costco kits, it has no published snow or wind rating, and the warranty is 1 year plus 5 years against rot. More combos are in our greenhouse shed guide.
Why it stands out
- Greenhouse and tool shed in one footprint
- Lockable doors front and rear
Watch out for
- Greenhouse section is small (about 37 sq ft)
- Ships in one 710 lb box
Full specs
- Sizes
- 8.1 x 11.4 overall; greenhouse interior 7 x 5.3; storage interior 7 x 3.8
- Footprint
- 8.1 x 11.4
- Frame
- 100% FSC-certified lumber, tongue-and-groove cedar-style base walls
- Cover
- Double-wall polycarbonate; black aluminum roof on storage section
- Shelves
- Dual upper and lower shelves (one folds down)
- Door
- Front and rear doors with key locks and closers (opening 25.75 x 76.25 in); auto roof vent
- Warranty
- 1 year from purchase plus 5 years against rot and decay
Specs from yardistrystructures.com, yardistry.com. Prices checked Oct 2026 and change often.
Yardistry greenhouse pros and cons
| Pros | Cons |
|---|---|
| 4.6/5 owner ratings on more than 1,600 Costco reviews | No published wind or snow load |
| Cedar frame with factory stain; looks like a garden building | 1-year warranty on defects (5 years on rot and decay), original owner only |
| Automatic roof vent included | Assembly takes owners about two days |
| Double-wall polycarbonate windows | Needs a yearly water-based sealant to keep the cedar looking good |
| 6 ft sidewalls and wooden base walls | Sold through Costco (membership, delivery only) or Yardistry direct |
Assembly: what owners actually report
Yardistry quotes 10 to 12 hours for two people. Owners quoted by House Digest report about two days. The parts are pre-cut, pre-drilled and pre-stained, and the instructions are illustrated, so it's a straightforward build, just a long one. Yardistry's instructions stress starting with a square, solid and level base, and suggest working on a raised flat surface such as sawhorses for the sub-assemblies.
- Prepare the base before delivery. A treated-timber frame on compacted gravel or pavers, or a slab. Measure both diagonals; they must match. See our greenhouse foundation guide.
- Inventory the boxes. The kits arrive curbside in several heavy boxes. Unpack and sort parts by number before starting.
- Book two days and a helper. Wall panels and the roof need two people.
- Anchor it. A wooden greenhouse is lighter than it looks once it's up. Fix the base to the ground or slab.
- Seal the cedar. Apply a water-based sealant soon after building, then once a year.
Yardistry also offers professional installation on its own site, with a lead time of 6 to 12 weeks from order.
Is a Yardistry right for your climate?
Yardistry doesn't publish wind or snow ratings, so it's hard to say exactly what it can take. Practical guidance: in mild and moderate climates, owners are clearly happy. In heavy-snow regions, plan to brush snow off the roof after every big fall, or choose a kit with a published snow load. For winter growing, the double-wall windows help, but a wood frame with many glazing joins won't hold heat like a dedicated four-season greenhouse. Read our winter greenhouse guide before relying on it for overwintering.
Mistakes to avoid with a Yardistry greenhouse
- Building straight on the lawn. Wood in contact with wet soil is what rots first, and the 5-year rot warranty won't help if the base sits in water. Raise the frame on gravel, pavers or a slab so it drains.
- Skipping the sealant. The factory stain is a starting coat. Owners recommend a water-based sealant every year; it keeps the cedar from greying and checking.
- Ordering the 8x7 when you need benches and beds. At 6.7 x 7.8 ft the smaller kit fits one main job. If you want trays and tomatoes at the same time, the 8x10 is the better buy. See what fits in our 6x8 greenhouse layout guide.
- Relying on the auto vent alone in summer. One roof vent can't keep up on a hot day. Prop the door open and add shade cloth or a fan; our ventilation guide covers options.
- Not anchoring it. With no published wind rating, treat anchoring as essential, especially on open lots.
- Losing the receipt. The warranty applies to the original owner only, so keep proof of purchase.
Alternatives to the Yardistry greenhouse
If you like the cedar look but need more strength, insulation or size, these are the alternatives we'd consider. Some are sold through retailers we may earn a commission from.
Outdoor Living Today Cedar 8x8
Outdoor Living Today's 8x8 is a heavier cedar build: Western red cedar with 3.5 in posts and rafters, 6 mm Polygal twin-wall panels (R-value 1.53), a Univent automatic roof opener plus two lower wall vents, and a 31 in Dutch door. It's pre-cut and panelized and described as roughly a two-day DIY build. It costs several times the Yardistry 8x7, ships free from Eartheasy, has no floor and isn't returnable once shipped.
Why it stands out
- Thicker framing and twin-wall panels
- Low wall vents plus an auto roof vent for real airflow
- Taller 8.7 ft peak
Watch out for
- Much more expensive
- No published wind or snow rating either; not returnable once shipped
Full specs
- Sizes
- 8x8 (also 8x12)
- Footprint
- 8.0 x 8.0
- Peak height
- 8.7 ft
- Frame
- Western red cedar, 3.5" x 3.5" posts and rafters, pre-cut panelized, ships unstained
- Panels
- 6 mm Polygal twin-wall polycarbonate (R-value 1.53)
- Vents
- 1 roof vent with Univent automatic opener (~70 F) + 2 lower wall vents
- Door
- 31" Dutch door
Specs from eartheasy.com. Prices checked Oct 2026 and change often.
Outdoor Living Today Cedar 8x12
The 8x12 version adds two heat-activated roof openers and 24 lineal ft of shelving, enough to line both sides. Same 6 mm twin-wall glazing. The warranty is only 1 year, the same as Yardistry's general warranty.
Why it stands out
- Shelving included
- Two auto roof vents plus wall vents
Watch out for
- 1-year warranty
- Floor or foundation extra
Full specs
- Sizes
- 8x12
- Footprint
- 8.0 x 11.8
- Peak height
- 8.7 ft
- Frame
- Western red cedar, pre-cut panelized
- Panels
- 6 mm Polygal twin-wall polycarbonate (R-value 1.53)
- Vents
- 2 heat-activated roof vent openers (~70 F) + 2 lower wall vents
- Door
- Full polycarbonate door
- Warranty
- 1-year manufacturer
Specs from eartheasy.com. Prices checked Oct 2026 and change often.
Backyard Discovery 9x6 Willow
Backyard Discovery's Willow is a 9x6 cedar greenhouse with a modern sloped roof and thicker glazing than most rivals: 10 mm 4-wall polycarbonate rated R-2.1. It includes a thermostat-activated exhaust fan and a casement window. Backyard Discovery states 100 mph wind, gives snow load only as a total weight rather than per square foot, and offers a 5-year warranty.
Why it stands out
- Thickest panels in this group (R-2.1)
- Exhaust fan included; 5-year warranty
Watch out for
- Snow rating not comparable to psf figures
- No owner reviews we could verify
Full specs
- Sizes
- 9x6 (also white version)
- Frame
- FSC-certified kiln-dried cedar
- Panels
- 10 mm 4-wall polycarbonate (R-2.1)
- Vents
- 1 thermostat-activated exhaust fan + 1 casement window
- Wind rating
- 100 mph
- Warranty
- 5-year
Specs from backyarddiscovery.com. Prices checked Oct 2026 and change often.
| Model | Sizes | Warranty | Typical price | Shop |
|---|---|---|---|---|
| Yardistry 8' x 7' Greenhouse (Model YM12842) | 7.8x6.7 | — | $800–$1,000 | Costco |
| Yardistry 8' x 10' Greenhouse (Model YM12854) | 8x9.7 | — | $2,000 | Costco |
| 8.1 x 11.4 Obsidian Greenhouse & Storage Shed | 8.1 x 11.4 overall; greenhouse interior 7 x 5.3; storage interior 7 x 3.8 | 1 year from purchase plus 5 years against rot and decay | $2,000 | Yardistry |
| 8' x 8' Western Red Cedar Greenhouse | 8x8 (also 8x12) | — | $4,046 | Eartheasy |
| 8' x 12' Western Red Cedar Greenhouse | 8x12 | 1-year manufacturer | $5,046 | Eartheasy |
| Backyard Discovery 9x6 Willow Greenhouse | 9x6 (also white version) | 5-year | $1,999 | Backyard Discovery |
| Palram - Canopia Natura Cedar Wood Greenhouse 8' x 12' | 8x12 (also 8x7, 8x17, 8x22) | 5-year (Canopia) | — | Walmart |
Also new: Palram-Canopia's Natura cedar greenhouse (8x7 to 8x22) is rated 62 mph and 16 lb/sq ft with a 5-year warranty, but it's too new to have owner reviews and we couldn't verify a US price. If you'd rather have aluminum and twin-wall panels all round, the Palram Mythos gives you twin-wall panels, published wind and snow ratings and a 5-year warranty for similar money. Compare Palram lines in our Palram-Canopia review. For more wood options, see wooden and cedar greenhouse kits.
Verdict
Buy the Yardistry if you want a good-looking cedar greenhouse for spring-to-fall growing in a mild or moderate climate, and you're happy to spend a weekend building and an afternoon a year sealing. It's the best-reviewed greenhouse at Costco by a wide margin, and our Costco greenhouse review shows how it compares with the rest of Costco's range.
Look elsewhere if you need published snow and wind ratings, plan to heat it through winter, or want a longer warranty. The Outdoor Living Today and Backyard Discovery kits above are the natural next step.
Frequently asked questions
Is the Yardistry greenhouse good?
Owners think so. At Costco the 8x7 rates 4.6/5 on 1,033 reviews and the 8x10 4.6/5 on 615, the best ratings of any greenhouse Costco sells. The main complaints are assembly time and the need to reseal the cedar.
How long does it take to put together a Yardistry greenhouse?
Yardistry says 10 to 12 hours for two people. Owners quoted by House Digest (January 2025) report about two days. Add time to prepare a level base beforehand.
What wood is the Yardistry greenhouse made of?
Yardistry's product pages describe 100% FSC-certified cedar lumber, pre-stained mocha brown, with double-wall polycarbonate windows and 32 in tongue-and-groove cedar base walls.
What is the Yardistry greenhouse warranty?
Yardistry's pages list one year against defects in materials and workmanship, plus five years against rot and decay for the lumber. It applies to the original owner only.
Does the Yardistry greenhouse need a foundation?
It needs a level, square, solid base. Yardistry's instructions stress starting with a square and level base. A treated-timber frame on gravel, pavers or a slab all work. The kit has wooden base walls but no floor.
Where can I buy a Yardistry greenhouse?
The 8x7 and 8x10 are sold through Costco (online, delivery only). Yardistry also sells some models, including the Obsidian greenhouse and storage shed, on its own website.
Keep reading
Brand reviewCostco greenhouse reviewEvery greenhouse Costco sells, ranked by owner ratings, what the return policy really covers, and where alternatives win.
Kits by typeWooden & cedar greenhouse kitsCedar and wood-frame greenhouse kits compared: panels, R-values, upkeep and how long they really take to build.
Kits by typeGreenhouse shed combosThe few real greenhouse-shed combo kits, shed-style greenhouses, and smart ways to pair or convert a shed instead.
Kits by size8x10 greenhouse kitsTrue 8x10 kits are rare. The best ones, the 8x12 alternatives, and a to-scale layout of benches and beds.
Kits by size6x8 greenhouse kitsBest 6x8 kits, how many flats and tomato plants fit, and when to size up to 8x8 or 6x10.
Build guideGreenhouse foundations and basesEvery greenhouse base option compared, with step-by-step timber and paver builds, squaring, anchoring and flooring.