The fully insulated Apex Summerhouse comes with ledged braced double doors; long double glazed windows; 12mm pressure treated shiplap tongue grove cladding; 38mm x 63mm planed rounded framing. This Apex summerhouse comes with 12mm Tongue & Groove Floor and Roof, plus an EPDM roof covering. Construction Main points: The summerhouse is constructed from high quality pressure treated 12mm tongue and groove shiplap cladding and 40mm Insulated EcoTherm. The high quality floor joists give the summerhouse a solid and sturdy feel. The floor and roof is also constructed from 12mm Tongue & Groove Board. Top grade timber is used throughout, sourced exclusively from Scandinavia where the best timber for summerhouses is produced. The timber is tight grained producing less sap and is therefore a more durable timber than the faster growing timber used by other summerhouse manufacturers. The benefit of purchasing a pressure treated building is that it is completely protected against rot, natural decay