Excellent product. This is a return visit to Vufold. Last year we purchased two 2.7m bare oak bifolds for the front of our house. I stained them dark outside and clear varnish inside (light). We were so happy with the product, its ease of assembly and fit, plus how it glides beautifully on the top rail. A huge positive change to our old Everest Patio doors, which is an unfair comparison as they were 40khrs old! Anyway, we were so pleased that we recently bought a 2.4m bifold for the rear of the house to replace some French doors I fitted 15yrs ago. Great product, great website, great delivery. We had the same guys deliver from bifold and they remembered the previous time :)