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The Larkspur 14×12 metal greenhouse is built to commercial-grade standards and designed to earn its place in your backyard. It’s made with a black, galvanized steel and aluminum frame, anchored by oversized 4.7-inch corner posts that bring the kind of structural strength you’d expect from a professional greenhouse. Wood-tone composite paneling and a modern silhouette make it a structure that adds architectural presence to your yard, not just a place to work in. The Larkspur comes with 10mm 4-wall polycarbonate glazing with an R-2.1 insulation value that retains 30% more heat than the standard 6mm twin-wall most greenhouses use, extending your growing season and diffusing direct sun into soft, even light so plants don’t scorch in peak summer. Residential-grade aluminum gutters come standard, channeling rainwater off the roof away from the foundation and making it easier to collect for irrigation. Pro-Tect engineered for real weather, the Larkspur is rated to withstand up to 10,600 pounds of snow load and 100 mph winds. It’s all backed by a comprehensive 5-year warranty on every component, from the framing and polycarbonate to every feature.
Most greenhouses sell you the structure and stop there. Every Backyard Discovery greenhouse ships with the features you’d otherwise buy separately, all backed by our 5-year warranty.
What’s included with a Creative Backyard Concepts greenhouse, and what most competitors charge extra for.
| Structure & Materials | Creative Backyard Concepts | Others |
| Polycarbonate glazing material Thickness & Insulation |
10mm 4-wall (R-2.1) superior year-round insulation |
4–6mm, 2-wall minimal insulation value |
| Wind rating | 100 mph | Up to ~62 mph, if disclosed at all |
| Snow load rating | 50 lbs/ft² | 14–20 lbs/ft², if disclosed at all |
| Wood frame | FSC-certified cedar | Pine or cedar, varies by brand |
| Metal frame | Galvanized steel & aluminum | Aluminum only |
| Features & Functionality | Creative Backyard Concepts | Others |
| Thermostat-activated exhaust fan | Included | DIY add-on $80–$200 |
| Air intake vents | Included | DIY add-on $25–$50 |
| Operable windows | Included | DIY add-on $150–$400 |
| Interior water spigot | Included | DIY add-on $75–$100 |
| PowerPort™ Electric Hub | Included | DIY add-on $100 |
| Staging shelves & slat wall | Included | Add-on $150–$450 |
| Plant hooks | Included | Add-on $25–$75 |
| Wheelbarrow-friendly door | Included | Varies |
| Support & Warranty | Creative Backyard Concepts | Others |
| Warranty | 5-year comprehensive | 1–3 years, varies by brand |
| Customer service | U.S.-based, 7 days/week | Varies |
| Parts replacement | Always available, ships in 48 hrs | Often unavailable |
| Model (SKU) # | 2404212 |
| Roof Style | Modern peaked gable roof with integrated open slat pergola |
| Greenhouse Nominal Size (W × D) — Excluding Pergola | 12 ft x 14 ft |
| Interior Floor Area | 163 sq ft |
| Actual Footprint Dimensions (W × D × H) | 11′-10″ x 17′-2 3/4″ x 10′-9 1/2″ (includes pergola) |
| Roof Peak Height | 10′-9 1/2″ |
| Wall Height | 6′-10″ |
| Frame Material | Galvanized steel, aluminium and wood-tone composite |
| Glazing Material (Roof / Windows) | 10mm 4-wall polycarbonate panels |
| Door — Type & Width | Hinged single door, 40″ wide wheelbarrow-friendly entry |
| Built-in Staging Shelves/Workstation | 44 total linear feet of shelving (29 ft lower + 15 ft upper) |
| Plant Hooks Included | 8 movable hooks |
| Pergola | Integrated open slat pergola for climbing-vines or hanging lights |
| Total Assembled Weight | 2,467 lbs (1,124 kg) |
| Glazing Material (Roof / Windows) | Polycarbonate panels |
| Thickness | 10mm |
| Wall Count | 4-wall commercial-grade construction |
| Insulation R-Value | R-2.1 (vs ~R-1.6 for standard 6mm twin-wall) |
| UV Resistance | UV-protected to resist yellowing, hazing, and sunlight degradation |
| Light Diffusion | Diffused light reduces plant scorching and shadows |
| Wind Rating | 100 mph |
| Snow Load Rating | 50 lbs/ft² (10,600 lbs) |
| USDA Hardiness Zone Suitability | Suitable for All USDA Zones; supplemental heat recommended in zones 3-7 and shade cloth recommended in zones 8-11 |
| Climate Use | Four-season / year-round growing |
| Passive Ventilation | 4 operable casement windows with removable magnetic screens + 2 intake vents |
| Shade Cloth Compatible | Compatible with aftermarket shade cloth |
| Warranty | 5-year comprehensive coverage |
| Foundation | Flat, level foundation required |
| Foundation Options | Concrete slab, compacted gravel base (most common), pavers, or wood deck |
| Foundation Materials | Buyer supplied |
| Foundation Size Required | 12′-11″ W x 18′-4″ D (includes a 6″ perimeter allowance around the structure) |
| Anchor Hardware** | Concrete and ground-stake anchors included (wood-deck hardware purchased separately) |
| Orientation/Sun Exposure | South-facing location recommended; minimum 6 hours full sun daily |
| Power Hub | Patented PowerPort™ Electric Hub includes 3 outlets and 3 USB ports (power source not included) |
| Power Source | Connect to a grounded, GFCI-protected outdoor outlet using a heavy-duty, outdoor rated extension cord. For supplemental heaters or other high-wattage equipment, a dedicated electrical circuit installed by a qualified electrician is recommended. |
| Water Hookup | Exterior garden hose connection with interior spigot & included hose (garden hose not included) |
| Gutters | 5″ residential-grade aluminium gutters included |
| Ready to Assemble Kit | Pre-cut, pre-drilled, pre-stained, factory-labelled components |
| Recommended Crew Size | 2-3 adults |
| Estimated Greenhouse Assembly Time | Plan up to one week, depending on skill level and available time |
| Tools Required (not included) | Power drill + drill bits, Phillips driver, open-end wrenches, socket set with drive ratchet, tape measure, square, 24″ level, rubber mallet, claw hammer, 8′ ladder |
| Assembly Aid | BILT® app (free, 3D interactive instructions, iOS + Android, works offline); printed manual EN/FR/ES |
| Largest Box Dimensions / Weight | 97.83″ x 22.24″ x 11.77″ / 191.8 lbs (heaviest of 16 cartons) – 2-person lift |
**Must be anchored as specified in Creative Backyard Concepts instruction manual
Every Creative Backyard Concepts greenhouse is built to a higher spec than what’s standard at this price point. The 10mm 4-wall polycarbonate panels deliver R-2.1 insulation, the heavy-duty framing is rated to 100 mph winds and 50 lbs per square foot of snow load. Inside, every greenhouse ships with the features competitors charge extra for — thermostat-activated ventilation, interior water spigot, PowerPort™ Electric Hub, staging shelves, slat wall, and operable windows. All of it backed by a 5-year warranty and U.S.-based support seven days a week.
Take a 360-degree look inside the Larkspur Metal Greenhouse. See the staging shelves, the pergola entrance, the slat wall, and how 163 square feet of growing space actually feels before it ships to your driveway.
For most home greenhouse owners, 4-wall polycarbonate is the better choice. It insulates significantly more than single-pane glass (R~2.1 vs. ~0.9), diffuses light evenly to reduce plant stress, and resists impact from hail and heavy snow. Glass offers superior clarity and a longer raw panel lifespan, making it ideal for display greenhouses or mild climates where insulation is less critical.
The thermostat-activated exhaust fan starts automatically when interior temperatures rise, while casement windows and low-mounted intake vents handle passive airflow when you want fresh air and pollinators in. Together, the system gives you both automatic and manual control to manage your greenhouse climate across the seasons.
Resources for greenhouse owners — assembly tips, buying guides, and the answers to questions before, during, and after your build.
A practical, no-fluff guide to starting your first greenhouse season — from choosing the right size and glazing to a month-by-month planting calendar and the five mistakes that trip up nearly every…
A closed greenhouse can hit 100°F on a mild spring day. This guide covers exhaust fans, passive vents, circulation, humidity control, and seasonal strategies to keep your plants alive — backed by u…
Which greenhouse glazing actually performs better for your climate, budget, and growing goals? We break down polycarbonate vs. glass across insulation, light, durability, cost, safety, and climate …
Compare four greenhouse foundation options — gravel, timber, pavers, and concrete — with real costs, trade-offs, and which one fits your greenhouse size.
Walk through every greenhouse decision in order — from climate zone and growing goals to glazing, frame material, ventilation, and budget — so you know exactly what to look for before you buy.
Herbs are the easiest place to start growing your own food. Which ones to grow, how to group them so they thrive together, where to put them indoors or out, and how to keep them going through winter.
Download the BILT® app for interactive 3D instructions that walk you through every step of assembly with every panel, every screw, visualized in real time.
Plan on a full weekend with two people for smaller models or up to a full week for larger models, depending on experience and pace.
Our cedar and metal greenhouses ship with pre-drilled and labeled pieces. For cedar greenhouses, most owners apply a seal or stain which is easiest to do with the panels laid out flat before assembly, though it can also be done after the build is complete. Sealant is not included.
| Box 1 | 93.9 in x 20.28 in x 5.31 in, Weight: 163.14 lbs |
| Box 2 | 89.96 in x 20.87 in x 5.31 in, Weight: 152.12 lbs |
| Box 3 | 87.99 in x 17.91 in x 7.09 in, Weight: 191.8 lbs |
| Box 4 | 91.54 in x 18.11 in x 6.89 in, Weight: 189.6 lbs |
| Box 5 | 104.33 in x 20.67 in x 5.31 in, Weight: 138.89 lbs |
| Box 6 | 91.54 in x 19.69 in x 5.59 in, Weight: 152.12 lbs |
| Box 7 | 89.96 in x 21.06 in x 5.31 in, Weight: 138.89 lbs |
| Box 8 | 89.17 in x 20.28 in x 5.35 in, Weight: 174.17 lbs |
| Box 9 | 89.57 in x 18.31 in x 5.71 in, Weight: 147.71 lbs |
| Box 10 | 84.25 in x 18.7 in x 5.98 in, Weight: 152.12 lbs |
| Box 11 | 67.13 in x 19.69 in x 6.06 in, Weight: 149.91 lbs |
| Box 12 | 58.46 in x 22.24 in x 12.13 in, Weight: 134.48 lbs |
| Box 13 | 85.83 in x 41.54 in x 4.13 in, Weight: 169.76 lbs |
| Box 14 | 97.83 in x 22.24 in x 11.77 in, Weight: 147.71 lbs |
| Box 15 | 40.94 in x 17.44 in x 5.31 in, Weight: 132.28 lbs |
| Box 16 | 40.94 in x 17.44 in x 5.31 in, Weight: 132.28 lbs |
| Box 17 | 144.0 in x 7.0 in x 7.0 in, Weight: 20.39 lbs |
| Box 18 | 144.0 in x 7.0 in x 7.0 in, Weight: 19.8 lbs |
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This greenhouse was a great buy. I would recommend this to anyone who wants to extend their growing season both before spring starts and extend it into late fall. There were a lot of steps, but pretty simple and easy to follow. Couldn’t be more happier with the high quality materials within this greenhouse. Seems like this greenhouse will be here to last and looks great on my property. Great size as well. Enough to grow into and expand. Took little over a week to put together and having 2-3 people to help is necessary. I am going to buy more products from here as the quality is build for the wild Chicago temps we get in all the seasons.
10/10 in all aspects! The building materials were high quality. The instructions were clear and easy to read. It even came with a digital copy that was 3d. My wife and I put this together and at times we needed a third person. There was a lot of steps, but so worth it in the end. We couldn’t be happier with the final product and everyone who comes by and sees the greenhouse is saying the same things. These materials are high quality and typical greenhouses are not this fancy, but this one is high class. I would recommend this to anyone who has any interest in getting a greenhouse. You pay for what you get, and the price is a great deal based on what you are getting with this greenhouse.
Huge fan of this Greenhouse! After opening and sorting all the framing and metal brackets, it is clear the materials on this greenhouse is a very high quality build and made to last. It was daunting putting together this greenhouse with all the steps shown, however the 3D digital assembly guide was a game changer.
The first time using something like that, and it made a huge difference. To click on an item, confirming its the right piece was very helpful. To watch small videos of how each section needs to be assembled made the job do able! We did it with two young kids running around.
Estimated timing on completing the job was accurate based on the amount of help you had. Highly recommend 2-3 people to complete this job. 4 people would make this build significantly easier.
Overall, we couldn’t be happier with this greenhouse. Everyone who comes by to see it, is shocked with the high quality and professional build. Heavy duty material for a long lasting investment for sure.
We recently assembled this greenhouse and to say I am in awe is an understatement! The design is impeccable. The high ceilings make the greenhouse so open and allows for plenty of hanging plants. The tables are made out of such durable material, while still leaving plenty of room in the middle to move about the space and for additional plants. Not only is the quality superior, but the appearance is beyond lovely! Every little detail is considered, even down to the flexible hose that reaches every corner of the greenhouse. If I could, I’d give this 10 out of 5 stars!
We absolutely love our Creative Backyard Concepts Larkspur Greenhouse! The quality really impressed us—it feels very sturdy and well built, and it looks great next to our barn here at M57 Farms. The built-in shelving gives us plenty of space for plants and supplies, and the whole design feels very well thought out. We’re excited to get everything planted and put it to use for many years to come!
My greenhouse arrived and contractor was ready! It was up quickly and furnished with all my favorite things, plus herbs lettuce, spinach, and collard greens. The kit and instructions were top notch. Creative Backyard Concepts has thought of everything. I can’t wait for more play time in my new favorite spot!
Greenhouse specialists available 7 days a week, 8am–6pm CST. Real humans who know the product and can answer questions about your specific model and situation.
Built with heavy-duty materials, your Creative Backyard Concepts greenhouse is designed for lasting performance. Following a consistent maintenance routine is key to maximizing its lifespan, ensuring safety, and preserving the quality of each session.
Every claim on this page is backed by verified specifications and third-party-tested Pro-Tect™ ratings.

Twice the walls and three times the insulating air chambers of standard 4–6mm twin-wall polycarbonate. The same specification used in commercial greenhouses, not entry level kits.

At R-2.1, our 10mm 4-wall panels hold roughly 30% more heat than the 6mm twin-wall (R-1.6) on most consumer greenhouses. That’s the difference between keeping heat overnight and losing it.

Pro-Tect™ rated to withstand 10,600 lbs of snow load and 100 mph winds, the Larkspur is engineered and structurally tested to perform in real-world weather conditions.

Most growers plan for winter cold, but even a mild spring day is the risk that catches people off guard, since a sealed greenhouse can hit 100°F or higher inside. The Larkspur’s thermostat-activated 620 CFM exhaust fans and passive intake vents pull out heat automatically as temperatures rise, even when you’re not there.

The galvanized steel and aluminum frame is reinforced with oversized 4.7-inch corner posts to deliver commercial-grade structural strength, while wood-tone composite panels add a warm, natural finish that never needs sealing or staining.
Everything here comes standard, not as upgrades or add-ons.

Two exhaust fans automatically turn on at your set temperature and vent heat before it builds up, then cycle off once the air cools. No switch to flip, no doors to open.

Four easy-open windows provide passive ventilation and airflow control, with removable magnetic screens that keep pests out or can be easily taken off when you want to let pollinators in.

Interior staging shelves rated to hold 500 pounds each give you space to start seeds, propagate, and tend potted plants, plus a slat wall that organizes tools, hooks, and planters vertically.

The PowerPort™ Electric Hub includes 3 outlets and 3 USB ports, bringing outdoor-rated power access inside the greenhouse for low-draw accessories like grow lights and fans. For supplemental heating, follow the greenhouse manual, heater manufacturer guidance, and local electrical code.

The exterior inlet connects your garden hose to the interior spigot, and an included collapsible hose lets you water plants inside your greenhouse without hauling a watering can back and forth.

At 40″ wide, it’s sized to roll a wheelbarrow through, so you can move bags of soil, plants, and harvest in and out without unloading first.

Residential-grade 5-inch aluminum gutters with integrated downspouts come standard, channeling rainwater away from the foundation to prevent pooling and making it easy to collect for irrigation.

Eight movable hooks let you hang baskets, dry herbs, or trellis crops anywhere in the greenhouse, ready to reposition as your growing needs change.

Every piece comes pre-cut, pre-drilled, and labeled, so it’s ready to assemble without any measuring or cutting to do yourself.
Whether it’s a warranty claim or an assembly question, we’re here to help at every step.

Every Creative Backyard Concepts greenhouse kit is backed by a comprehensive 5-year warranty covering the frame, polycarbonate panels, hardware, and every included feature. Replacement parts ship from our U.S. warehouse within 48 hours and stay available for the life of the product.

Our US-based team of greenhouse specialists is available 7 days a week, 8am–6pm CST by phone, chat, or email. Real people who know the product can help you find the right greenhouse, answer questions, or troubleshoot anything before, during, or after assembly.

From the materials to the features, every component is designed, tested, and manufactured to our proprietary specifications, ensuring a level of quality and performance that exceeds the market standard.

The free BILT® app walks you through the entire build, one step at a time, in interactive 3D. Rotate each step, zoom into the joints, and see exactly where every screw goes. Works offline, on iOS and Android.
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