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From greenhouses to sheds, most of these can be delivered within a month.

Amazon, that humble online retailer you may have heard of, sells just about anything. Wardrobe essentials, cleaning supplies, gym equipment, you name it, Amazon's probably selling it (and with next-day delivery for Prime members). Now, that includes tiny houses.

Why buy a tiny house, you my ask? For starters, it makes for a great secondary residence to add to your backyard, whether you're looking to add a pool house, walk-in greenhouse, mother-in-law suite, or a detached home office (especially given that WFH is here to stay). And rather than spending a fortune on contractors to make a custom tiny house, buying one from Amazon is relatively more affordable. Many of these top-rated homes come with DIY building kits, faster-than-usual shipping times, and multi-year warranties. Keep in mind though, that if you want a completely functional tiny house, you'll need to add plumbing and electricity yourself. Ahead, we found some of the best tiny houses on Amazon to add to your cart now.

This 150 square-foot house mainly functions as a storage room, but is also big enough to be used as a mother-in-law suite. It's made with plywood for cost-effective insulation. Plus, it's divvied up into two areas, one main room that can hold a twin size bed, and a smaller 40 square foot area with enough room for a toilet, shower stall, and sink.

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Store your essential lawns tools under one woof with this plywood shed. Standing at about 10 feet tall, this tiny house can hold most tractors and mowers with ease. Plus, it comes in pre-assembled boxes to make building it a bit easier. Floor kit is sold separately.

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Gazebos are a great way to enjoy your backyard while still getting plenty of shade. This one is made with durable aluminum, and Amazon customers love its clean, easy-to-assemble design. Also, it has a 40 miles-per-hour wind rate, which means it can hold up in stormy weather. Fill it with a table and lawn chairs and you've got a summer outdoor entertaining space.

This greenhouse makes year round gardening possible. While most greenhouses at this price point are made with flimsy plastic, this one is constructed with aluminum and glass, and has a 90 miles-per-hour wind load so you know it'll last long.

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This massive (for tiny house standards) shed is 12 feet tall and features a second floor attic to store smaller items (like those unwanted gifts). The main floor is big enough to house bicycles, sports equipment, and lawn tools, and the front has a carriage-style door for a farmhouse-style finish. Plus, this usually ships within a month, just in time for summer.

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Functional as a detached guest room or home office, this farm house is made with sturdy Western Red Cedar that also provides ample insulation (for those cooler-than-usual summer evenings). Plus, its mini porch adds a cozy vibe.

Another gazebo option, this one has sleek sliding doors for an easy-to-use indoor/outdoor space. Plus netted windows let lots of light in while keeping bugs at bay. Amazon customers say this requires two people to assemble, and putting it together was relatively easy.

A resin wood shed that holds up to rain, sleet, and snow, Richmond's tiny house is great for storing oversized equipment, gear, and tools.

Amazon customers have been raving about this plastic shed for its durability and easy-to-follow building instructions. It's double insulated with retractable skylights so your storage items won't get too hot or cold. Amazon customers recommend building it around a slab of concrete to really keep it in place.

Walls of shuttered windows make this cabin look more like a rustic sun room, but it's 150-square-foot area can still hold a small bed and nightstand, making it an adequate mother-in-law suite. This also has a five-year warranty, and usually ships within five weeks or less. Roofing materials sold separately.