Superfold 4000 & 5000 - High Security Insulated Folding Doors

The Superfold 4000 SR4 and Superfold 5000 SR5 rated, insulated folding doors have been specifically designed and tested to meet the demanding requirements of high security installations whilst maintaining the quality aesthetic appearance and thermal properties of our range of insulated folding doors. Registered in the BRE Global ‘Red Book Live’, this confirms our products have been rigorously tested, assessed and approved by LPCB and that also the same high standard and quality production is maintained through the process of regular audits. The Superfold 4000 will survive an experienced attempt at forced entry using portable tools. The Superfold 5000 will survive professional attempts at forced entry with a combination of mechanical and mains powered tools.