FAQ

  • Why is it called a Polycrub?

    Historically, Shetlanders needed sheltered space to grow-on young kale (cabbage) plants. Stone was their building material of choice and they built round, stone-walled shelters to nurture plants through the toughest conditions. Locally, this structure was known as a ‘planticrub’. Our building material of choice is polycarbonate, so we merged the name of our chosen 21st century material with a name from past growing history in Shetland. The ‘Polycrub’ was born.

  • Where can I buy a Polycrub?

    We are the only suppliers of Polycrub, so you can buy directly from us.

  • I don’t live in Shetland, can I still buy a Polycrub?

    Yes, we can ship polycrub kits outside Shetland—they’ve been sent as far as France and the Falklands. We also work with a partner in the Western Isles, and are developing our partner network.

  • Do you supply all the materials?

    The Polycrub kit includes everything needed for the external structure, except cement for the posts.

  • Can I self-build the Polycrub kit I buy from you?

    The kit includes full construction instructions and detailed drawings. It can be built by anyone with suitable building experience/skills. We also have a small network of independent, trusted constructors. We recommend the use of these where possible.

  • Can I collect the Polycrub kit in a van?

    Some of the kit materials measure 9m in length, so a large truck is required for transportation and delivery.

  • Are the hoops of the frame made from metal?

    No, the hoops are created using very strong polyethylene pipe, recycled from the aquaculture industry. This diverts the pipe from landfill.

  • Can a Polycrub be built over a weekend?

    A Polycrub is a permanent structure, so it takes time to build properly. The build typically takes around 50 — 100 hours, depending on size, ground conditions and any internal fit-out.

  • Are Polycrubs available in a variety of sizes?

    Polycrubs are either 3 metre or 4 metre wide. The 4 metre range begins at 4 metre x 4 metre and the length increases in 1 metre increments to 4 metre x 12 metre. This range is approx. 2.6 metres in height. The 3 metre wide versions begin at 3 metre x 3 metre and increase in 1 metre increments to 3 metre x 6 metre. This range is approx. 2.3 metres at the highest part.

  • Is plastic sheeting used to cover the Polycrub?

    No, our Polycrubs are covered using polycarbonate sheeting. The sheet is strong, lightweight, impact resistant and easy to bend. It features a UV-protective layer on one side. Joining sections are also UV protected. Each polycarbonate sheet carries a 10-year manufacturer’s warranty and is highly weather resistant with good thermal insulation properties. Light transmission is excellent at 81%.

  • Do I need to install air vents for ventilation?

    No, the combination of doors and/or windows you decide to install are the means of ventilation. Customers who buy the 4m—8m long range, usually chose to build a stable door in one gable end and one or two windows in the other. Polycrubs greater than 8m long need lots of ventilation. We recommend either building a stable door in each end, or a stable door in one end and three windows in the other.

  • Will I need to dig out a foundation?

    No, there isn’t any need for extensive foundations. Polycrubs are anchored using a robust post and concrete system, using holes in the ground. You’ll need a relatively level site, but Polycrubs can also be built on sloping ground if necessary. The build will be a bit more tricky as the slope angle needs to be taken into account, whilst still building the Polycrub level.

  • Will I need planning permission to build a Polycrub?

    Polycrub is a permanent structure but can come in under permitted development rights. We advise customers to check with their Local Planning Authority.

Contact Us

Please feel free to contact us if you have any questions or queries.

Contact Us

Ollaberry Hall, Ollaberry, Shetland, ZE2 9RT