Built to withstand the elements, the shed can store anything from a simple spade to bikes, fishing equipment or outward-bound gear!. The shed's improved Fully modular design features smaller sections, same size panels are fully interchangeable. The shed is made using robust, interlocking, weather-beating pressure-treated shiplap cladding throughout, giving it a watertight seal. Why Choose a Forest Shiplap Beckwood Shed?. Supplied with a market-leading 25-year anti-rot guarantee as standard, Beckwood Sheds are robust, durable and packed full of premium features. Their tight, interlocking shiplap tongue & groove construction forms an unbeatable weatherproof seal and makes for an exceptionally attractive appearance.Features and Benefits If you want to buy a Great British shed that offers more than just plain, old garden storage, choose a Forest Beckwood Shed. Supplied with a market-leading 25-year anti-rot guarantee as standard, Forest Beckwood Sheds are robust and durable, offering weather-beating performance. The tightly-interlocking boards ensure the shed remains completely weathertight, while the shiplap's scalloped profile provides excellent rainwater runoff.1.