All the right curves in all the right places

As we're planning on fitting a spiral staircase we wanted to create a curved stairwell to match.  The stairwell would need to extend up into the loft space to give the best effect  I'd never made a partition with a curve before never mind a 270 degree through floor partition!

The square opening had previously been formed as part of the joist works in the loft space, so the circular 360 degree opening was simply marked out within this square then roughly cut out.  The curved bottom rail of the partition was formed and the uprights were fitted in place, extending up into the loft by 1.2m.

The curved base rail was formed by cutting a series of 25mm deep notches at 12mm intervals in 50mm x 50mm timber.  The 50mm x 50mm timber was doubled up to meet the required 100mm x 50mm partition thickness set out by the structural engineer in the drawings.  The uprights are 100mm x 50mm timber.

Cutting the notches was very, very time consuming and i worked out later that i'd cut approximately 400 notches and that didn't include a couple of early attempts that cracked and split due to the notches not being deep enough or frequent enough. 

The dwangs also had to be curved, but because these were relatively short pieces of timber it was easier to mark the curvature required and cut the curve using a jigsaw. 

Quite chuffed with the finished partition.  Hopefully curving and fitting the plasterboard will be a relatively straightforward task.  Fingers crossed!