The waltons 12 x 8 premier groundsman windowless shed is a superb building if youre looking for security great quality and a generous storage space each wooden shed in this range is constructed with 12mm shiplap tongue and grooved timber panels that are attached to a sturdy 27mm x 45mm framing for maximum strength and longevitywe have ensured that these wooden sheds are completely secure by incorporating no windows into their designs you have the option to store larger items as the sheds