12x4 Power Apex Summerhouse This Power summerhouse has responsibily sourced, high grade slow-grown timber renowned for its strength and resistance to warping Heavy duty framing with corner bracing on all wall panels 12mm thick shiplap tongue and groove, including the roof and floor Toughened Glass with PVC window sills High performance polyester backed waterproof felt 12mm thick shiplap tongue and groove, including the roof and floor
