Polycarbonate Greenhouse Accessories

The structural parts on this page are made for our polycarbonate range: The Timeless, The Signature, The Modern, The Peak and The Compact. Extension kits, additional doors and roof vents ask you to select your model at checkout so the profiles match. Raised beds, shelving, irrigation, shade cloth, water tanks and garden tools work in any greenhouse.

Yes. The 6.6 ft extension kit adds a full section to any polycarbonate model and can be repeated up to about 98 ft of total length. Order the same panel thickness as your greenhouse, 4 mm (5/32 in.) or 6 mm (1/4 in.), and select your model. The glass and wood models are fixed structures and cannot be extended.

It uses a sealed wax cylinder that expands as the air warms and contracts as it cools, pushing the vent open and pulling it shut on its own. No wiring, no batteries, nothing to plug in. It typically starts opening around 68 to 77 degrees Fahrenheit and is fully open by roughly 86 degrees, which keeps the greenhouse from overheating while you are away.

One front door, two manual ventilation windows, the 3.9 in steel foundation base, rubber channel seals, all fasteners and an illustrated assembly manual come with every polycarbonate greenhouse, not sold as add-ons. The items on this page are upgrades and additions, not missing parts.

No. Common household tools are enough for every accessory: a screwdriver, a wrench set and a cordless drill. Fixings are supplied and each item comes with its own instructions.

Accessories ordered at the same time as a greenhouse travel on the same pallet whenever possible. Ordered on their own, they ship separately by parcel or freight depending on size. Shipping is free and fully insured to the 48 contiguous states either way, and tracking is included.

You have 30 days after delivery to request a return. Items must be unused, uninstalled and in their original packaging, with proof of purchase. Contact our team at support@primegreenhouses.com to start a return before sending anything back.