The design stresses of the largest two-way elliptical roof in Europe set a challenge for James Latham which had to ensure it supplied the correct grade of plywood for the job.

The 100m roof is being constructed at the Crown Estate’s new visitor centre at The Savill Garden, Windsor Great Park by The Green Oak Carpentry Company.

It features a sold larch grid system and each grid will flex in three axes to give the roof its form. Birch plywood will be placed in strips over the top of the grid to brace and stiffen the structure.

Pat Collins, product specialist for James Latham Eastleigh, said the company was delighted to be involved, especially in ensuring it provided the correct specifications for the centre’s construction.